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Abdelghani E, Fathi MA, Li Z, Dai P, Li Y, Li C. In ovo injection of soy isoflavones on hatching performance and intestinal development of newly hatched chicks. J Anim Physiol Anim Nutr (Berl) 2023; 107:1381-1391. [PMID: 37391896 DOI: 10.1111/jpn.13850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 05/30/2023] [Accepted: 06/01/2023] [Indexed: 07/02/2023]
Abstract
This study aimed to evaluate the effects of in ovo injection of soy isoflavones (ISF) on hatchability, body weight, antioxidant status and intestinal development of newly hatched broiler chicks. One hundred and eighty fertile eggs were divided as follows: the control group, 3 mg/egg ISF (low dose) and 6 mg/egg ISF (high dose) on the 18th day of incubation. The results demonstrated that in ovo inclusion of 6 mg of ISF significantly increased hatchability and hatch weight. Both doses of ISF inclusion elevated the serum glutathione peroxidase and slightly decreased malondialdehyde compared to the control group. The high dose of ISF brings higher villus height and a higher villus/crypt ratio in chicks. Moreover, the mRNA levels of tumour necrosis factor- α and interferon-gamma in the spleen were significantly decreased. The ISF treatments showed an improvement in intestinal enzyme expression levels of sucrose isomaltase and mucin 2 as well as tight junction protein (TJ) mRNA expression of claudin-1 at high doses of ISF (p < 0.05) when compared with the other groups. Furthermore, the mRNA level of IGF-1 was increased in the high doses of ISF compared to the control. Overall, these findings indicate that in ovo administration of ISF on the 18th day of incubation enhances hatchability, antioxidant status and intestinal morphometrics in hatched chicks and modulates the expression of proinflammatory cytokines, TJs and insulin-like growth factor. In addition, the sustainability of antioxidants and other positive effects of ISF may increase chick viability and growth performance.
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Affiliation(s)
- Ezaldeen Abdelghani
- Research Center for Livestock Environmental Control and Smart Production, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, People's Republic of China
| | - Mohamed A Fathi
- Research Center for Livestock Environmental Control and Smart Production, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, People's Republic of China
- Poultry Breeding Department, Animal Production Research Institute, Agricultural Research Centre, Dokki, Giza, Egypt
| | - Zhaojian Li
- Research Center for Livestock Environmental Control and Smart Production, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, People's Republic of China
| | - Pengyuan Dai
- Research Center for Livestock Environmental Control and Smart Production, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, People's Republic of China
| | - Yansen Li
- Research Center for Livestock Environmental Control and Smart Production, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, People's Republic of China
| | - Chunmei Li
- Research Center for Livestock Environmental Control and Smart Production, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, People's Republic of China
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Liu J, Fu Y, Zhou S, Zhao P, Zhao J, Yang Q, Wu H, Ding M, Li Y. Comparison of the effect of quercetin and daidzein on production performance, anti-oxidation, hormones, and cecal microflora in laying hens during the late laying period. Poult Sci 2023; 102:102674. [PMID: 37104906 PMCID: PMC10160590 DOI: 10.1016/j.psj.2023.102674] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 03/20/2023] [Accepted: 03/23/2023] [Indexed: 03/29/2023] Open
Abstract
This study aims to compare the effect of quercetin and daidzein on production performance, anti-oxidation, hormones, and cecal microflora in laying hens during the late laying period. A total of 360 53-week-old healthy Hyline brown laying hens were randomly divided into 3 groups (control, 0.05% quercetin, and 0.003% daidzein). Diets were fed for 10 wk, afterwards 1 bird per replicate (6 replicates) were euthanized for sampling blood, liver and cecal digesta. Compared with the control, quercetin significantly increased laying rate and decreased feed-to-egg weight ratio from wk 1 to 4, wk 5 to 10, and wk 1 to 10 (P < 0.05). Quercetin significantly increased the activities of superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) and decreased catalase (CAT) activity and malondialdehyde (MDA) content in serum and liver (P < 0.05) and increased content of total antioxidant capacity (T-AOC) in liver (P < 0.05). Quercetin increased content of estradiol (E2), luteinizing hormone (LH), follicle-stimulating hormone (FSH), growth hormone (GH), insulin-like growth factor 1 (IGF-1), triiodothyronine (T3) and thyroxine (T4) in serum (P < 0.05). Quercetin significantly decreased the relative abundance of Bacteroidaceae and Bacteroides (P < 0.01) and significantly increased the relative abundance of Lactobacillaceae and Lactobacillus (P < 0.05) at family and genus levels in cecum. Daidzein did not significantly influence production performance from wk 1 to 10. Daidzein significantly increased SOD activity and decreased CAT activity and MDA content in serum and liver (P < 0.05), and increased T-AOC content in liver (P < 0.05). Daidzein increased content of FSH, IGF-1, T3 in serum (P < 0.05). Daidzein increased the relative abundance of Rikenellaceae RC9 gut group at genus level in cecum (P < 0.05). Quercetin increased economic efficiency by 137.59% and 8.77%, respectively, compared with daidzein and control. In conclusion, quercetin improved production performance through enhancing antioxidant state, hormone levels, and regulating cecal microflora in laying hens during the late laying period. Quercetin was more effective than daidzein in improving economic efficiency.
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Duan Y, Qi Q, Liu Z, Zhang M, Liu H. Soy consumption and serum uric acid levels: A systematic review and meta-analysis. Front Nutr 2022; 9:975718. [PMID: 36118757 PMCID: PMC9479323 DOI: 10.3389/fnut.2022.975718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 08/09/2022] [Indexed: 12/09/2022] Open
Abstract
Background Soy consumption has health benefits, but the relationship between soy and uric acid remains uncertain. This meta-analysis and systematic review evaluated the effects of soy intake on plasma uric acid. Methods PubMed, Embase, CNKI, and the Cochrane Library were searched for studies evaluating the effects of soy, soy products, soy protein, and soy isoflavones on uric acid levels. The primary outcome was serum or plasma uric acid concentration. Study quality was evaluated by the Cochrane Collaboration and SYRCLE risk-of-bias tools. Results A total of 17 studies were included. Qualitative analysis of three human clinical studies of acute effects revealed that soy consumption increased serum uric acid concentration; however, soy-derived products, including tofu, bean curd cake, and dried bean curd sticks, had no significant effect on serum uric acid. A meta-analysis of five long-term human studies (10 data sets) revealed that soy protein and soy isoflavones had no significant effects on uric acid levels [weighted mean difference (WMD) = -2.11; 95% confidence interval (CI): -8.78, 4.55; p = 0.53]. However, most epidemiological data revealed that soy intake is inversely associated with uric acid levels. Meta-analysis of nine animal trials (29 data sets) revealed that soy protein and soy isoflavones significantly reduced serum uric acid concentrations (vs. controls; MD = -38.02; 95% CI: -50.60, -25.44; p < 0.001). Conclusion Soy and its products have different effects on serum uric acid. Soy products like tofu, bean curd cake, and dried bean curd sticks could be high-quality protein sources for individuals with hyperuricemia or gout. It can be beneficial to nutritionists and healthcare decision-makers reconsider their conceptions about the relationship between soy and uric acid levels according to the latest and further scientific study results. Systematic review registration [www.crd.york.ac.uk/PROSPERO], identifier [CRD42022331855].
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Affiliation(s)
- Ying Duan
- School of Public Health, Bengbu Medical College, Bengbu, Anhui, China
| | - Qi Qi
- School of Public Health, Bengbu Medical College, Bengbu, Anhui, China
| | - Zihao Liu
- School of Public Health, Bengbu Medical College, Bengbu, Anhui, China
| | - Min Zhang
- School of Health Management, Bengbu Medical College, Bengbu, Anhui, China
| | - Huaqing Liu
- School of Public Health, Bengbu Medical College, Bengbu, Anhui, China
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Grgic D, Varga E, Novak B, Müller A, Marko D. Isoflavones in Animals: Metabolism and Effects in Livestock and Occurrence in Feed. Toxins (Basel) 2021; 13:836. [PMID: 34941674 PMCID: PMC8705642 DOI: 10.3390/toxins13120836] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 11/18/2021] [Accepted: 11/19/2021] [Indexed: 12/29/2022] Open
Abstract
Soybeans are a common ingredient of animal feed. They contain isoflavones, which are known to act as phytoestrogens in animals. Isoflavones were described to have beneficial effects on farm animals. However, there are also reports of negative outcomes after the consumption of isoflavones. This review summarizes the current knowledge of metabolization of isoflavones (including the influence of the microbiome, phase I and phase II metabolism), as well as the distribution of isoflavones and their metabolites in tissues. Furthermore, published studies on effects of isoflavones in livestock species (pigs, poultry, ruminants, fish) are reviewed. Moreover, published studies on occurrence of isoflavones in feed materials and co-occurrence with zearalenone are presented and are supplemented with our own survey data.
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Affiliation(s)
- Dino Grgic
- Department of Food Chemistry and Toxicology, Faculty of Chemistry, University of Vienna, Währinger Str. 38-40, 1090 Vienna, Austria; (D.G.); (E.V.)
| | - Elisabeth Varga
- Department of Food Chemistry and Toxicology, Faculty of Chemistry, University of Vienna, Währinger Str. 38-40, 1090 Vienna, Austria; (D.G.); (E.V.)
| | - Barbara Novak
- BIOMIN Research Center, Technopark 1, 3430 Tulln, Austria; (B.N.); (A.M.)
| | - Anneliese Müller
- BIOMIN Research Center, Technopark 1, 3430 Tulln, Austria; (B.N.); (A.M.)
| | - Doris Marko
- Department of Food Chemistry and Toxicology, Faculty of Chemistry, University of Vienna, Währinger Str. 38-40, 1090 Vienna, Austria; (D.G.); (E.V.)
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Huang Z, Lv Z, Dai H, Li S, Jiang J, Ye N, Zhu S, Wei Q, Shi F. Dietary mulberry-leaf flavonoids supplementation improves liver lipid metabolism and ovarian function of aged breeder hens. J Anim Physiol Anim Nutr (Berl) 2021; 106:1321-1332. [PMID: 34741341 DOI: 10.1111/jpn.13658] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 09/15/2021] [Accepted: 10/11/2021] [Indexed: 12/14/2022]
Abstract
Mulberry-leaf flavonoids (MF), extracted from mulberry leaves, exert antioxidant and hypolipidemic effects. The purpose of this experimental study was to investigate the effects of dietary MF on the ovarian function and liver lipid metabolism of aged breeder hens. We used 270 (60-weeks-old) Qiling breeder hens randomly assigned in 3 treatments with supplemental dietary MF doses (0, 30, 60 mg/kg). The results showed that dietary MF significantly improved the egg-laying rate, followed by the reduced feed conversion rate (FCR) (p < 0.05). However, there is no obvious difference in hatchability and fertilised eggs hatchability among the three groups (p > 0.05). The level of T-CHO, LDL-C and AKP in serum was reduced, and the HDL-C concentrations were increased by dietary MF (p < 0.05). MF treatment also improved the antioxidant capacity and reduced the apoptotic index of the ovary (p < 0.05). Additionally, dietary MF significantly increased the serum estradiol (E2) levels (p < 0.05) and the transcription level of CYP19A1 and LHR in the ovary (p < 0.05). Dietary MF enhanced fatty acid β-oxidation in the liver via up-regulating the mRNA expressions of PPARα and CPT-I (p < 0.05). Moreover, the HMF group significantly decreased mRNA expressions of SREBP-1c (p < 0.05) and increased mRNA expressions of ERα, VTG-Ⅱ and ApoB in the liver (p < 0.05). In conclusion, dietary MF could improve the reproduction performance of aged breeder hens through improving ovary function and hepatic lipid metabolism.
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Affiliation(s)
- Zhenwu Huang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Zengpeng Lv
- College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Hongjian Dai
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Simeng Li
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Jingle Jiang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Nanwei Ye
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Shanli Zhu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Quanwei Wei
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Fangxiong Shi
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
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Effects of Energy-Restricted Feeding during Rearing on the Performance, Uniformity, and Development of Rugao Layer Breeders at the Initiation of the Laying Period. Animals (Basel) 2021; 11:ani11082222. [PMID: 34438680 PMCID: PMC8388481 DOI: 10.3390/ani11082222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 07/16/2021] [Accepted: 07/24/2021] [Indexed: 11/25/2022] Open
Abstract
Simple Summary Three major factors affecting productive performance of laying hens are BW, flock uniformity, and GIT development at the initiation of the laying period. Various feeding management practices to restrict feed intake of broiler breeders during the rearing phase to optimize BW for reproductive performance can improve BW uniformity. Hence, the feed restriction methods used for broiler breeders might be used to improve flock uniformity and the GIT development of laying hens. The objective of the study was to investigate the effects of energy-restricted feeding and switching to ad libitum feeding on the performance, uniformity, and development of Rugao layer breeders at the initiation of the laying period. Moderate energy restriction from 8 to 18 weeks of age and switching to ad libitum feeding can stimulate the development of the GIT and improve BW uniformity of layer breeders. Improved ECR was observed overall in the experiment. In addition, the BW of layer breeders recovered after the pullets were switched to ad libitum feeding for 3 weeks. These results provide a theoretical basis for the application of energy-restricted feeding in young layer breeders, which may have important practical importance for layer breeders because a better rearing cycle can be advantageous to production performance. Abstract The aim of this study was to assess the effects of energy-restricted feeding during rearing on the performance, uniformity, and development of layer breeders at the initiation of the laying period. A total of 2400 8-week-old Rugao layer breeders were randomly assigned to one of five groups (480 pullets per group) with eight replicates and were fed one of five diets that were nutritionally equal with the exception of apparent metabolizable energy corrected for nitrogen (AMEn) content (2850, 2750, 2650, 2550, and 2450 kcal AMEn/kg) from 8 to 18 weeks of age. The daily amount of feed was restricted to the absolute quantity of the diet consumed by laying hens fed 2850 kcal AMEn per kg diet ad libitum (control). From 18 to 21 weeks of age, all hens were fed a basal diet ad libitum. The body weight (BW) of the laying pullets decreased linearly with increasing energy restriction (p < 0.001) but recovered within 3 weeks of ad libitum feeding (p = 0.290). A gradual increase in the degree of energy restriction resulted in a gradual decrease in average daily weight gain (ADG) and a gradual increase in the feed conversion ratio (FCR) and energy conversion ratio (ECR) from 8 to 18 weeks of age (p < 0.001, p < 0.001, p = 0.008). In contrast, the ADG and ADFI (p < 0.001, p < 0.001) gradually increased, while the FCR and ECR (p < 0.001, p < 0.001) gradually improved from 18 to 21 weeks of age. From 8 to 21 weeks of age, ECR improved (p = 0.005) with an increasing degree of energy restriction. The energy-restricted feeding for 6 weeks to the end of the trial improved BW uniformity (p < 0.05). The relative length and circumference of tarsus (p < 0.001, p < 0.001), and the relative weights and lengths of the small intestine, duodenum, jejunum, ileum, and caeca increased linearly (p < 0.001, p = 0.012, p < 0.007, p = 0.012, p = 0.040; p < 0.001, p = 0.003, p = 0.032, p = 0.029, p = 0.040) with increasing energy restriction at 18 weeks of age. After switching to ad libitum feeding for 3 weeks, the relative weights and lengths of the small intestine, duodenum, and jejunum of laying pullets increased linearly with increasing energy restriction (p < 0.001, p = 0.016, p = 0.011; p = 0.009, p = 0.028, p = 0.032). In conclusion, moderate energy restriction (85.97%, 2450 vs. 2850 kcal AMEn/kg) from 8 to 18 weeks of age and switching to ad libitum feeding from 18 to 21 weeks of age can be used to improve BW uniformity and stimulate the development of the duodenum and jejunum of native layer breeders at the initiation of the laying period without compromising BW.
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Lu J, Li YF, Qu L, Ma M, Yang XD, Shen MM, Wang XG, Guo J, Hu YP, Dou TC, Li SM, Yang Z, Gao F, Wang KH. Effects of energy-restricted feeding during rearing on sexual maturation and reproductive performance of Rugao layer breeders. Poult Sci 2021; 100:101225. [PMID: 34237549 PMCID: PMC8267595 DOI: 10.1016/j.psj.2021.101225] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 03/22/2021] [Accepted: 04/16/2021] [Indexed: 02/06/2023] Open
Abstract
The aim of this study was to assess the effects of energy-restricted feeding during rearing on the sexual maturation and reproductive performance of Rugao layer breeders. A total of 2,400 8-wk-old Rugao layer breeders were randomly assigned to one of 5 groups (480 pullets per group) with eight replicates and were fed one of 5 diets that were nutritionally similar with the exception of apparent metabolizable energy corrected for nitrogen (AMEn) content (2,850, 2,750, 2,650, 2,550, and 2,450 kcal AMEn/kg) from 8 to 18 wks of age. The daily amount of feed was restricted to the absolute quantity of the diet consumed by laying hens fed 2,850 kcal AMEn per kg diet ad libitum (control). From 18 to 52 wks of age, all hens were fed basal diets ad libitum. The body weight of layer breeders at 18 wks of age decreased linearly with increasing energy restriction (P < 0.001), but caught up within 3 wks of ad libitum feeding (P = 0.290). The coefficient of variation of the body weight of the hens at 18, 21, and 24 wks of age decreased linearly (P = 0.010, 0.025, and 0.041, respectively) with increasing energy restriction during rearing. Energy-restricted feeding delayed sexual organ development at 18, 20, and 22 wks of age, including the number of large yellow follicles, oviduct length, oviduct length index, oviduct index, and ovary stroma index (P < 0.05), and delayed sexual maturity, including the age at laying the first egg and the age at 5% and 50% egg production (P = 0.042, 0.004, and 0.029, respectively). Consequently, egg number from 5% to 50% egg production decreased linearly as the degree of energy restriction increased (P = 0.001) and egg production of hens in the energy-restricted feeding groups was lower than that of hens in the ad libitum feeding group (6.36, 6.43, 6.4, and 4.61% vs. 14.29%; P < 0.05) from 18 to 20 wks of age. Furthermore, egg weight increased linearly as energy restriction increased (P < 0.001) and laying hens in the most severe energy-restricted feeding group had more setting eggs (normal eggs weighing >40 g) than hens in the ad libitum feeding and lighter energy-restricted feeding groups (149.57 vs. 144.34, 142.66, 143.63, and 141.78; P < 0.05). No significant differences were observed in fertility, hatchability of fertile eggs, and hatchability of setting eggs (P = 0.381, 0.790, and 0.605, respectively). In conclusion, moderate energy restriction (85.97%, 2,450 vs. 2,850 kcal AMEn/kg) from 8 to 18 wks of age increased egg weight as well as the production of setting eggs in native layer breeders throughout the laying period, without adverse effects on productive performance from 18 to 52 wks of age, or fertility and hatchability at 52 wks of age.
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Affiliation(s)
- J Lu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095 China; Poultry Institute, Chinese Academy of Agricultural Sciences, Yangzhou, Jiangsu, 225125 China; Key Laboratory for Poultry Genetics and Breeding of Jiangsu Province, Yangzhou, Jiangsu, 225125 China
| | - Y F Li
- Poultry Institute, Chinese Academy of Agricultural Sciences, Yangzhou, Jiangsu, 225125 China
| | - L Qu
- Poultry Institute, Chinese Academy of Agricultural Sciences, Yangzhou, Jiangsu, 225125 China
| | - M Ma
- Key Laboratory for Poultry Genetics and Breeding of Jiangsu Province, Yangzhou, Jiangsu, 225125 China
| | - X D Yang
- Key Laboratory for Poultry Genetics and Breeding of Jiangsu Province, Yangzhou, Jiangsu, 225125 China
| | - M M Shen
- Key Laboratory for Poultry Genetics and Breeding of Jiangsu Province, Yangzhou, Jiangsu, 225125 China
| | - X G Wang
- Key Laboratory for Poultry Genetics and Breeding of Jiangsu Province, Yangzhou, Jiangsu, 225125 China
| | - J Guo
- Key Laboratory for Poultry Genetics and Breeding of Jiangsu Province, Yangzhou, Jiangsu, 225125 China
| | - Y P Hu
- Key Laboratory for Poultry Genetics and Breeding of Jiangsu Province, Yangzhou, Jiangsu, 225125 China
| | - T C Dou
- Key Laboratory for Poultry Genetics and Breeding of Jiangsu Province, Yangzhou, Jiangsu, 225125 China
| | - S M Li
- Key Laboratory for Poultry Genetics and Breeding of Jiangsu Province, Yangzhou, Jiangsu, 225125 China
| | - Z Yang
- Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, 225009 China
| | - F Gao
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, Jiangsu, 210095 China.
| | - K H Wang
- Poultry Institute, Chinese Academy of Agricultural Sciences, Yangzhou, Jiangsu, 225125 China
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Dietary supplementation with daidzein and Chinese herbs, independently and combined, improves laying performance, egg quality and plasma hormone levels of post-peak laying hens. Poult Sci 2021; 100:101115. [PMID: 33975040 PMCID: PMC8131741 DOI: 10.1016/j.psj.2021.101115] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 02/27/2021] [Accepted: 03/04/2021] [Indexed: 12/26/2022] Open
Abstract
This experiment examined the separate and combined effects of daidzein (Da) and Chinese herbs (CH) on laying performance and egg quality of post-peak laying hens. Additionally, we explored potential mechanisms of action for these 2 additives by examining plasma hormone levels. After 4 wk of acclimation to caging, 60-week-old Hyline Brown hens (360) were selected and randomly divided into 4 groups with 6 replicates and 15 chickens per replicate. The following 4 dietary groups were utilized: 1) control group (basal diet); 2) Da group (basal diet + 0.03 kg/t DA); 3) CH group (basal diet +0.6 kg/t CH); 4) Da + CH group (basal diet + 0.03 kg/t Da + 0.6 kg/t CH). Data were analyzed in a completely randomized design with a 2×2 factorial arrangement of treatments. Egg production and FCR treatment averages were analyzed in the following 3 phases: wk 1-4, 5-8, and 1-8 of treatment administration. Results revealed that Da increased egg production but decreased FCR (P < 0.05) for wk 1-8 and especially during wk 5-8 (P < 0.05). CH decreased FCR in wk 1-4 and 5-8 (P < 0.05), but increased egg production only during wk 5-8 (P < 0.05). Da increased Haugh units (P < 0.05) on wk 4 and 8; CH increased Haugh units (P < 0.05) but decreased yolk ratio (P < 0.05) on wk 4 and 8. Da increased the plasma levels of T3, PROG, FSH, LH and E2 (P < 0.05); CH increased the plasma level of T3 (P < 0.05). Additionally, Da x CH interactions existed for albumen height, Haugh units, albumen ratio and the level of T3 on wk 8 (P < 0.05), indicating that the combination of Da and CH was more effective than administration of either of these dietary components independently. In conclusion, Da and CH, both independently and in combination, increase laying performance, egg quality and plasma hormones levels in post-peak laying hens. Therefore, these treatments may be able to provide prolonged economic benefits to aged laying hens.
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9
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Liu B, Zhu J, Zhou Q, Yu D. Tolerance and safety evaluation of sodium sulfate: A subchronic study in laying hens. ACTA ACUST UNITED AC 2021; 7:576-586. [PMID: 34258447 PMCID: PMC8245793 DOI: 10.1016/j.aninu.2020.08.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 07/02/2020] [Accepted: 08/12/2020] [Indexed: 11/27/2022]
Abstract
Sodium sulfate (Na2SO4) is a readily available chlorine-free source of sodium, which could be used to reduce sodium chloride to maintain the ratio between chlorine and sodium in poultry diets. Dietary supplementation with excessive levels of Na2SO4 might be detrimental to bird's health and performance. A subchronic study was carried out to investigate the potential adverse effects of an accidental oversupply of Na2SO4 in the diets of laying hens. Four hundred and fifty 21-week-old Hy-Line White layers were randomly assigned to 5 treatments with 6 replicates. The birds were fed diets supplemented with 0 (control), 0.3%, 0.6%, 1.5%, and 3.0% Na2SO4 for 8 weeks. Laying performance, egg quality parameters, clinical blood parameters, histopathology, intestinal barrier functions, and intestinal microflora composition were measured. No clinical signs of intoxication or mortality were observed during the experimental period. The results of this study showed that the optimal levels of Na2SO4 (0.3% to 0.6%) significantly improved the laying rates, average daily egg mass, and eggshell quality of hens compared to the control (P < 0.05). However, 3.0% Na2SO4 produced negative effects on laying performance, eggshell quality, blood biochemistry, and particularly on liver and kidney pathology, and intestinal morphology and barrier functions compared with the controls. Although minor changes were observed in clinical blood parameters of hens receiving 1.5% Na2SO4, these were not considered to be of toxicological significance due to the absence of any organ pathological changes in hens. In conclusion, our results indicated that a Na2SO4 concentration of 1.5% was non-deleterious to laying hens after a daily administration for 56 d, namely that dietary supplementation of up to 5 times the maximum recommended dose is safely tolerated by laying hens.
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Affiliation(s)
- Bing Liu
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China.,State Key Laboratory of Food Science and Technology, and Synergetic Innovation Center of Food Safety and Nutrition, Jiangnan University, Wuxi, 214122, China
| | - Jiaming Zhu
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Qin Zhou
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Dongyou Yu
- College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China
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Transcriptome sequencing reveals genetic mechanisms of reproduction performance stimulated by dietary daidzein in laying breeder hens. Theriogenology 2019; 142:120-130. [PMID: 31593879 DOI: 10.1016/j.theriogenology.2019.09.040] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 08/21/2019] [Accepted: 09/26/2019] [Indexed: 12/23/2022]
Abstract
Daidzein (DA) is a kind of isoflavone that is extracted primarily from soy plants and that has become increasingly popular as a dietary supplement. The objective of this study was to evaluate the effects of dietary DA supplementation for laying breeder hens on laying performance, reproductive organ development, hatching performance of seed eggs, and growth performance of offspring and to investigate the underlying molecular mechanisms. A total of 180 55-week-old laying breeder hens were randomly divided into 2 treatment groups and, after 3 weeks of acclimation, were fed either a control diet (CON) or a DA-supplemented diet (DAS, CON+30 mg/kg DA) for a total of 12 weeks. DAS treatment improved the laying rate, luteinizing hormone (LH) levels, and small yellow follicle (SYF) numbers without negative effects on the hatchability of breeder eggs or the growth performance of offspring. High-throughput RNA sequencing was utilized to identify differentially expressed genes in the SYF granulosa layer in the two groups. Transcriptome analysis showed that 161 genes (fold change ≥2 or ≤0.5; P-value<0.05) were significantly differentially expressed between the two groups, including 139 upregulated genes and 22 downregulated genes. Gene ontology (GO) functional annotation analysis revealed potential genes, processes and pathways involved in cell proliferation and differentiation related to the improvement of laying performance stimulated by DA. Dietary DA supplementation for laying breeder hens improved laying performance and reproductive performance with no negative impacts on hatchability or offspring growth. A series of differentially expressed genes in SYF granulosa cells were significantly upregulated in the DAS group relative to the CON group. This study provides insight into the genetic architecture of the transcriptome of the SYF granulosa layer in layer breeding hens and proposes candidate genes that respond to dietary DA.
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Abdelghani E, Xing W, Li Y, Shen D, Alsiddig MA, Li C. Effects of Dietary Supplementation of Soy Isoflavones on the Performance and Egg Quality in Native Chinese Breeder Hens. BRAZILIAN JOURNAL OF POULTRY SCIENCE 2019. [DOI: 10.1590/1806-9061-2018-0940] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
| | - W Xing
- Nanjing Agricultural University, China
| | - Y Li
- Nanjing Agricultural University, China
| | - D Shen
- Nanjing Agricultural University, China
| | | | - C Li
- Nanjing Agricultural University, China
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Fan H, Lv Z, Gan L, Guo Y. Transcriptomics-Related Mechanisms of Supplementing Laying Broiler Breeder Hens with Dietary Daidzein to Improve the Immune Function and Growth Performance of Offspring. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:2049-2060. [PMID: 29420022 DOI: 10.1021/acs.jafc.7b06069] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Daidzein (DA) is an isoflavone that is primarily extracted from soy plants. This study evaluated the effects of supplementing laying broiler breeder hens with dietary DA on the immune function and growth performance of their offspring and the underlying mechanism. A total of 720 breeders were divided into three treatment groups that were fed either a control diet (CON), a DA-low-supplemented diet (DLS, CON+20 mg/kg DA), or a DA-high-supplemented diet (DHS, CON+100 mg/kg DA) for 8 weeks, and eggs were collected for hatching during the final week. The broiler offspring received a basal diet for 42 days, and blood, livers, and immune organs were collected at 21 and 42 days of age. DLS treatment promoted embryonic development and increased growth hormone levels, body weight, feed intake, and carcass traits on days 21 and 42 of broilers. Additionally, the IgA and IgG concentrations, antibody titers, and antioxidant capacity of broilers were increased at 21 days of age, and B lymphocyte differentiation was increased at 42 days. Besides, DLS treatment upregulated the expression of genes related to embryonic and muscle development in offspring and regulated mitogen-activated protein kinase (MAPK), transforming growth factor beta (TGF-β), nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB), and Toll-like receptor signaling. DHS treatment decreased the percentage of abdominal fat in the broilers at 42 days, but it did not significantly affect embryonic development, growth performance, or IgA and IgG concentrations. In summary, providing dietary DA supplementation at 20 mg/kg to broiler breeders can improve their immune function and growth performance.
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Affiliation(s)
- Hao Fan
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University , 2 Yuanmingyuan West Road, Beijing 100193, P. R. China
| | - Zengpeng Lv
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University , 2 Yuanmingyuan West Road, Beijing 100193, P. R. China
| | - Liping Gan
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University , 2 Yuanmingyuan West Road, Beijing 100193, P. R. China
| | - Yuming Guo
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University , 2 Yuanmingyuan West Road, Beijing 100193, P. R. China
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