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Muro BB, Carnevale RF, Leal DF, Almond GW, Monteiro MS, Poor AP, Schinckel AP, Garbossa CA. The importance of optimal body condition to maximise reproductive health and perinatal outcomes in pigs. Nutr Res Rev 2023; 36:351-371. [PMID: 35748154 DOI: 10.1017/s0954422422000129] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Overnutrition or undernutrition during all or part of the reproductive cycle predisposes sows to metabolic consequences and poor reproductive health which contributes to a decrease in sow longevity and an increase in perinatal mortality. This represents not only an economic problem for the pig industry but also results in poor animal welfare. To maximise profitability and increase sustainability in pig production, it is pivotal to provide researchers and practitioners with synthesised information about the repercussions of maternal obesity or malnutrition on reproductive health and perinatal outcomes, and to pinpoint currently available nutritional managements to keep sows' body condition in an optimal range. Thus, the present review summarises recent work on the consequences of maternal malnutrition and highlights new findings.
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Affiliation(s)
- Bruno Bd Muro
- Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Sciences, University of São Paulo (USP), Campus Pirassununga, SP, Brazil
| | - Rafaella F Carnevale
- Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Sciences, University of São Paulo (USP), Campus Pirassununga, SP, Brazil
| | - Diego F Leal
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Sciences, University of São Paulo (USP), Campus Pirassununga, Pirassununga, SP, Brazil
| | - Glen W Almond
- Department of Population Health & Pathobiology, College of Veterinary Medicine, North Carolina State University (NCSU), Raleigh, North Carolina, USA
| | - Matheus S Monteiro
- Department of Preventive Veterinary Medicine and Animal Health, School of Veterinary Medicine and Animal Sciences, University of São Paulo (USP), Campus São Paulo, São Paulo, SP, Brazil
| | - André P Poor
- Department of Preventive Veterinary Medicine and Animal Health, School of Veterinary Medicine and Animal Sciences, University of São Paulo (USP), Campus São Paulo, São Paulo, SP, Brazil
| | - Allan P Schinckel
- Department of Animal Sciences, Purdue University, West Lafayette, Indiana, USA
| | - Cesar Ap Garbossa
- Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Sciences, University of São Paulo (USP), Campus Pirassununga, SP, Brazil
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Vargovic L, Hermesch S, Athorn RZ, Bunter KL. Feed intake and feeding behaviour traits of gestating sows are associated with undesirable outcomes. Livest Sci 2021. [DOI: 10.1016/j.livsci.2021.104526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Mallmann AL, Arend LS, Oliveira GS, Mellagi APG, Ulguim RR, Bernardi ML, Bortolozzo FP, Knox RV. Effects of flush feeding strategy before breeding on reproductive performance of modern replacement gilts: impacts on ovulation rate and litter traits. J Anim Sci 2020; 98:skaa186. [PMID: 32506131 PMCID: PMC7447920 DOI: 10.1093/jas/skaa186] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Accepted: 06/03/2020] [Indexed: 11/12/2022] Open
Abstract
AbstractThe effects of two feed levels offered during two estrous cycles before insemination were evaluated on the reproductive performance of gilts. A total of 93 gilts (PIC Hendersonville, TN) were individually housed and manually fed twice a day with 2.1 or 3.6 kg/d of a corn and soybean meal-based diet (3.15 Mcal ME/kg and 0.64% standardized ileal digestible lysine), during two estrous cycles before breeding (cycle 1, between first and second estrus; cycle 2, between second and third estrus). Gilts were weighed at the beginning of the experiment, at second and third estrus, and at slaughter (30.2 ± 1.2 d of gestation). Follicles were counted at second estrus, and the embryo-placental units and the corpora lutea were individually counted, measured, and weighed at slaughter. Gilts fed 3.6 kg/d had greater BW gain during cycle 1 and cycle 2 (P < 0.001; + 9.8 kg and + 10.0 kg, respectively) becoming heavier at second and third estrus (P < 0.001). At second estrus, gilts fed 3.6 kg/d had 1.6 more medium-large follicles (P = 0.074) but no difference in follicle size (P = 0.530) was observed. Gilts fed 3.6 kg/d in cycle 1 or cycle 2 had a greater ovulation rate at third estrus (P < 0.016) than those receiving 2.1 kg/d. Also, 3.6 kg/d in cycle 2 increased early embryo mortality (P = 0.006; 2.3 vs. 1.1 dead embryos) and consequently reduced total embryo survival (P = 0.002; 84.6 vs. 90.1%). Gilts fed 3.6 kg/d during cycle 1 had two more total embryos (P < 0.001; 17.2 vs. 15.1) and two more vital embryos on day 30 (P < 0.001; 16.7 vs. 14.5) in comparison with gilts fed 2.1 kg/d. The coefficient of variation for placental length was greater for gilts fed 3.6 kg/d during cycle 1 (P = 0.003). No further significant effects of feeding levels were observed on embryo and placental traits (P ≥ 0.063). These results suggest that the feeding level during the first cycle after pubertal estrus is crucial to set ovulation rate and potential litter size for breeding at next estrus. However, flush feeding gilts before insemination can negatively impact litter size by reducing embryo survival when breeding at third estrus.
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Affiliation(s)
- André L Mallmann
- Departamento de Medicina Animal/Faculdade de Veterinária, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Lidia S Arend
- Department of Animal Sciences, University of Illinois, Urbana
| | - Gabriela S Oliveira
- Departamento de Medicina Animal/Faculdade de Veterinária, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Ana P G Mellagi
- Departamento de Medicina Animal/Faculdade de Veterinária, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Rafael R Ulguim
- Departamento de Medicina Animal/Faculdade de Veterinária, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Mari L Bernardi
- Departamento de Zootecnia/Faculdade de Agronomia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Fernando P Bortolozzo
- Departamento de Medicina Animal/Faculdade de Veterinária, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Robert V Knox
- Department of Animal Sciences, University of Illinois, Urbana
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Leal DF, Muro BBD, Nichi M, Almond GW, Viana CHC, Vioti G, Carnevale RF, Garbossa CAP. Effects of post-insemination energy content of feed on embryonic survival in pigs: A systematic review. Anim Reprod Sci 2019; 205:70-77. [PMID: 31010717 DOI: 10.1016/j.anireprosci.2019.04.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 04/03/2019] [Accepted: 04/15/2019] [Indexed: 01/29/2023]
Abstract
The feeding of diets with greater energy content than that needed for body maintenance following mating is believed to reduce embryonic survival in pigs. In swine operations, therefore, feed intake is often restricted during the first and second week of pregnancy to reduce embryo mortality. There is thought to be a relationship between feeding diets that result in energy intake that is greater than that needed for body maintenance and embryonic death. This relationship is associated with lesser than typical progesterone (P4) concentrations when feeding diets with greater energy content due to increased hepatic clearance. There is no consensus, however, as to whether feeding should be restricted during early pregnancy to avert this possible detrimental effect. Thus, the aim of this systematic review is to assess the effect in sows and gilts of feeding diets with different energy contents post-mating on embryonic survival, evaluating when possible, the relationship of a greater energy intake and P4 concentrations on embryonic survival. An electronic search was conducted of the PubMed, Science Direct, Scopus, Web of science, and Scielo databases during June 2018. A total of 109 articles were retrieved, and of these, only 16 articles were selected after applying the selection criteria. There was no negative effect of a greater feed intake than that needed for body maintenance after breeding in 75% of the experiments. Results from 35% of the experiments indicated feeding early pregnant sows a diet with greater energy content than that needed for body maintenance resulted in augmented embryonic death. In 66.7% of the experiments, in which there was assessment of P4 concentration, there was no negative effect of feeding after farrowing a diet with greater energy than that needed for body maintenance. In conclusion, it appears that restricted feed intake in early pregnancy is no longer relevant when there are modern prolific dam lines utilized in swine production enterprises because dietary energy of as great as 54 MJ ME/day had no detrimental effect on embryo survival.
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Affiliation(s)
- Diego F Leal
- Department of Animal Reproduction, FMVZ-USP Campus, São Paulo, SP, Brazil
| | - Bruno B D Muro
- Department of Animal Reproduction, FMVZ-USP Campus, São Paulo, SP, Brazil
| | - Marcilio Nichi
- Department of Animal Reproduction, FMVZ-USP Campus, São Paulo, SP, Brazil
| | | | | | - Geovanna Vioti
- Department of Preventive Veterinary Medicine and Animal Health, FMVZ-USP Campus, São Paulo, SP, Brazil
| | | | - Cesar A P Garbossa
- Department of Animal Production and Nutrition, FMVZ-USP Campus, Pirassununga, SP, Brazil.
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Malmsten A, Jansson G, Dalin AM. Post-mortem examination of the reproductive organs of female wild boars (Sus scrofa) in Sweden. Reprod Domest Anim 2017; 52:570-578. [DOI: 10.1111/rda.12947] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Accepted: 02/01/2017] [Indexed: 11/29/2022]
Affiliation(s)
- Anna Malmsten
- Division of Reproduction; Department of Clinical Sciences; Swedish University of Agricultural Sciences; Uppsala Sweden
| | - Gunnar Jansson
- Grimsö Wildlife Research Station; Department of Ecology; Swedish University of Agricultural Sciences; Riddarhyttan Sweden
| | - Anne-Marie Dalin
- Division of Reproduction; Department of Clinical Sciences; Swedish University of Agricultural Sciences; Uppsala Sweden
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