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Pacelli C, Barile VL, Sabia E, Casano AB, Braghieri A, Martina V, Barbato O. Use of GnRH Treatment Based on Pregnancy-Associated Glyco-Proteins (PAGs) Levels as a Strategy for the Maintenance of Pregnancy in Buffalo Cows: A Field Study. Animals (Basel) 2022; 12:ani12202822. [PMID: 36290208 PMCID: PMC9597821 DOI: 10.3390/ani12202822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 10/02/2022] [Accepted: 10/13/2022] [Indexed: 11/23/2022] Open
Abstract
The aim of the study was to evaluate the effects of GnRH administrated at day 35 after artificial insemination (AI) on the reproductive performance of buffalo cows. In ten buffalo farms in the period January−February, 481 buffalo cows were subjected to estrus synchronization protocol and fixed-time artificial insemination (Ovsynch−TAI program). Radioimmunoassays (RIA) for pregnancy-associated glycoproteins (PAGs) were used to detect pregnancy at day 28 after AI (cut-off value: ≥1 ng/mL). Among pregnant subjects, those with PAG values between 1 and 2.5 ng/mL were considered at risk of embryonic mortality (EM) and were assigned into two groups: treated (T; n = 57) control (C; n = 57). Treated buffaloes received 0.01 mg of buserelin acetate intramuscularly on day 35 after AI, whereas control buffaloes received no treatment. The pregnancy diagnosis was confirmed at day 60 through PAGs level and rectal palpation. The treatment with GnRH had a significant effect (p < 0.001) in reducing EM. Between days 28 and 60 after AI, the animals that experienced EM were only 2/57 in the T group, while were 13/57 in the C group. Moreover, GnRH treatment produced a significant increase (p < 0.001) in the PAG concentration between day 28 and day 60. Administration of GnRH at day 35 after AI in animals considered at risk of low embryo survival based on PAG levels allowed a reduction in pregnancy losses and improved the pregnancy rate during low-breeding season in buffalo.
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Affiliation(s)
- Corrado Pacelli
- School of Agricultural, Forest, Food, and Environmental Sciences, University of Basilicata, 85100 Potenza, Italy
| | - Vittoria Lucia Barile
- Consiglio per la Ricerca in Agricoltura e l’Analisi dell’Economia Agraria (CREA)—Research Centre for Animal Production and Aquaculture, 00015 Rome, Italy
| | - Emilio Sabia
- School of Agricultural, Forest, Food, and Environmental Sciences, University of Basilicata, 85100 Potenza, Italy
| | | | - Ada Braghieri
- School of Agricultural, Forest, Food, and Environmental Sciences, University of Basilicata, 85100 Potenza, Italy
| | - Valeria Martina
- School of Agricultural, Forest, Food, and Environmental Sciences, University of Basilicata, 85100 Potenza, Italy
| | - Olimpia Barbato
- Department of Veterinary Medicine, University of Perugia, 06126 Perugia, Italy
- Correspondence: ; Tel.: +39-075-585-7640; Fax: +39-075-585-7638
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Esposito L, Salzano A, Russo M, de Nicola D, Prandi A, Gasparrini B, Campanile G, Neglia G. Corpus Luteum Color Doppler Ultrasound and Pregnancy Outcome in Buffalo during the Transitional Period. Animals (Basel) 2020; 10:ani10071181. [PMID: 32668625 PMCID: PMC7401660 DOI: 10.3390/ani10071181] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 07/07/2020] [Accepted: 07/10/2020] [Indexed: 12/16/2022] Open
Abstract
Simple Summary The advent of color Doppler ultrasonography promoted tremendous advances in research and clinical practice in animal reproduction, because it allowed noninvasive visualization of the vascularization in reproductive organs. In particular, the corpus luteum blood flow reflects luteal function better than luteal size in ruminants. Since buffaloes are a seasonal species, it is important to evaluate corpus luteum functionality also during the nonbreeding season, through blood flow examination and early pregnancy diagnosis. For this reason, we selected 29 Mediterranean buffaloes that had undergone synchronization and artificial insemination and were examined daily, from 5 to 10 days post-artificial insemination. Then, we retrospectively classified the buffaloes as pregnant or nonpregnant. Statistical analysis showed that pregnant animals had higher mean progesterone concentration and higher mean time average medium velocity values from Day 5 to Day 10 compared to nonpregnant buffaloes. Moreover, these two parameters could be used to predict the likelihood of pregnancy, starting on Day 6, although more reliable results could be obtained at Day 10 post-artificial insemination. In conclusion, a proper CL growth and development from Day 5 to Day 10 post-timed artificial insemination (TAI) is crucial for pregnancy maintenance during the transitional period. Abstract This study evaluated corpus luteum (CL) development in buffaloes out of breeding season and assessed an early pregnancy diagnosis. Mediterranean buffaloes (n = 29) were synchronized and artificially inseminated. CL B-mode/color Doppler ultrasonography examinations were performed daily from Days 5 to 10 post-synchronization, recording CL dimensions and blood flow parameters. Blood samples were collected on the same days for the progesterone (P4) assay. Data were grouped into pregnant or nonpregnant and retrospectively analyzed. The total pregnancy rate was 50.0% (13/26) on Day 45. A significant difference between CL average area in pregnant and nonpregnant buffaloes was recorded only on Day 10. Pregnant buffaloes showed a significantly higher mean P4 concentration and higher mean time average medium velocity (TAMV) values from Day 5 to Day 10 compared to nonpregnant buffaloes. Linear regression analysis showed a significant relationship between P4 levels and TAMV. Multiple logistic regression highlighted a significant influence of TAMV on pregnancy outcome, particularly on Day 8. This is probably due to the strong relationship between TAMV and P4 production. Both TAMV and P4 could be used to predict pregnancy starting on Day 6, although a more reliable result was obtained at Day 10. Thus, the period between Days 5 and 10 is critical for CL development during the transitional period in buffalo.
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Affiliation(s)
- Luigi Esposito
- Department of Veterinary Medicine and Animal Production, Federico II University, 80137 Naples, Italy; (L.E.); (A.S.); (D.d.N.); (B.G.); (G.C.); (G.N.)
| | - Angela Salzano
- Department of Veterinary Medicine and Animal Production, Federico II University, 80137 Naples, Italy; (L.E.); (A.S.); (D.d.N.); (B.G.); (G.C.); (G.N.)
| | - Marco Russo
- Department of Veterinary Medicine and Animal Production, Federico II University, 80137 Naples, Italy; (L.E.); (A.S.); (D.d.N.); (B.G.); (G.C.); (G.N.)
- Correspondence: ; Tel.: +39-081-2536016
| | - Donato de Nicola
- Department of Veterinary Medicine and Animal Production, Federico II University, 80137 Naples, Italy; (L.E.); (A.S.); (D.d.N.); (B.G.); (G.C.); (G.N.)
| | - Alberto Prandi
- Department of Agricultural, Environmental and Animal Science, University of Udine, 33100 Udine, Italy;
| | - Bianca Gasparrini
- Department of Veterinary Medicine and Animal Production, Federico II University, 80137 Naples, Italy; (L.E.); (A.S.); (D.d.N.); (B.G.); (G.C.); (G.N.)
| | - Giuseppe Campanile
- Department of Veterinary Medicine and Animal Production, Federico II University, 80137 Naples, Italy; (L.E.); (A.S.); (D.d.N.); (B.G.); (G.C.); (G.N.)
| | - Gianluca Neglia
- Department of Veterinary Medicine and Animal Production, Federico II University, 80137 Naples, Italy; (L.E.); (A.S.); (D.d.N.); (B.G.); (G.C.); (G.N.)
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3
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Neglia G, de Nicola D, Esposito L, Salzano A, D'Occhio MJ, Fatone G. Reproductive management in buffalo by artificial insemination. Theriogenology 2020; 150:166-172. [PMID: 31982156 DOI: 10.1016/j.theriogenology.2020.01.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 01/11/2020] [Indexed: 10/25/2022]
Abstract
Artificial insemination (AI) is important for genetic improvement and to control the period of breeding in buffalo and has increased significantly over the past 20 years. AI is more difficult in buffalo compared with cattle due to variable estrous cycles, reduced estrous behavior, and reproductive seasonality. The latter is associated with a higher incidence of anestrus and increased embryonic mortality during the nonbreeding season. Protocols to control the stage of the estrous cycle have undergone recent development in buffalo. These protocols are based on the control of both the luteal phase of the cycle, mainly by prostaglandins and progesterone, and follicle development and ovulation, by prostaglandins, progesterone, GnRH, hCG, eCG and estradiol. Protocols that synchronize the time of ovulation enable fixed timed AI, avoiding estrous detection. Factors to consider when selecting an AI protocol include animal category (heifers, primiparous or pluriparous), reproductive status (cyclic or anestrus), and season. This review looks at the current status of estrus synchronization and AI in buffalo and provides some practical suggestions for application of AI in the field.
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Affiliation(s)
- Gianluca Neglia
- Department of Veterinary Medicine and Animal Production, Federico II University of Naples, Via F. Delpino 1, 80137, Napoli, NA, Italy.
| | - Donato de Nicola
- Department of Veterinary Medicine and Animal Production, Federico II University of Naples, Via F. Delpino 1, 80137, Napoli, NA, Italy
| | - Luigi Esposito
- Department of Veterinary Medicine and Animal Production, Federico II University of Naples, Via F. Delpino 1, 80137, Napoli, NA, Italy
| | - Angela Salzano
- Department of Veterinary Medicine and Animal Production, Federico II University of Naples, Via F. Delpino 1, 80137, Napoli, NA, Italy
| | - Michael John D'Occhio
- School of Life and Environmental Sciences, The University of Sydney, Sydney, New South Wales, Australia
| | - Gerardo Fatone
- Department of Veterinary Medicine and Animal Production, Federico II University of Naples, Via F. Delpino 1, 80137, Napoli, NA, Italy
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Gasparrini B. Effects of reproductive season on embryo development in the buffalo. Reprod Fertil Dev 2019; 31:68-81. [PMID: 32188543 DOI: 10.1071/rd18315] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Interest in buffalo farming is increasing worldwide due to the critical role played by buffaloes as sources of animal protein in tropical and subtropical environments. However, reproductive seasonality negatively affects the profitability of buffalo farming. Buffaloes tend to be short-day breeders, with seasonality patterns increasing with greater distances from the Equator. Although ovarian cyclic activity may occur throughout the year, seasonal anoestrus and cycles in calving and milk production are recorded. When buffaloes are forced to mate during the unfavourable season, to meet market demand, they may undergo a higher incidence of embryo mortality. This review addresses the effects of the reproductive season on embryo development in the buffalo, analysing the different factors involved in determining embryo mortality during the unfavourable season, such as impaired luteal function, oocyte competence and sperm quality. The review then focuses on strategies to control the photoperiod-dependent annual fluctuations in conception and embryo mortality in the female buffalo.
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Neglia G, Capuano M, Balestrieri A, Cimmino R, Iannaccone F, Palumbo F, Presicce GA, Campanile G. Effect of consecutive re-synchronization protocols on pregnancy rate in buffalo (Bubalus bubalis) heifers out of the breeding season. Theriogenology 2018; 113:120-126. [DOI: 10.1016/j.theriogenology.2018.01.020] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Revised: 01/25/2018] [Accepted: 01/29/2018] [Indexed: 11/26/2022]
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Ramoun AA, Emara AM, Heleil BA, Darweish SA, Abou-Ghait HA. Hormonal profile and follicular dynamics concurrent with CIDR and insulin modified Ovsync TAI programs and their impacts on the fertility response in buffaloes. Theriogenology 2017; 104:205-210. [PMID: 28888896 DOI: 10.1016/j.theriogenology.2017.08.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 08/13/2017] [Accepted: 08/14/2017] [Indexed: 11/25/2022]
Abstract
Fifty one cyclic Egyptian buffaloes were used to study the hormonal profile and follicular dynamics concurrent with CIDR and insulin modified Ovsync TAI programs and their impacts on the consequent fertility responses. The buffaloes were randomly assigned into 3 ovulation synchronization protocols: Ovsync-alone (n = 13, control) CIDR-sync (n = 20) and Insulin-sync (n = 18). Ovsync-alone protocol consisted of two im injections of 20 μg bueserlin (GnRHa) on Day 0 (GnRH 1) and on Day 9 (GnRH 2) with an im injection of 500 μg of cloprostenol sodium (PGF2 α) on Day 7. The CIDR-sync protocol consisted of the same treatment protocol as in Ovsync in addition to intra-vaginal insertion of CIDR (contains 1.38 gm of progesterone) on Day 0 followed by removal on Day 7. The Insulin-sync protocol consisted of the same treatment protocol as in Ovsync plus 3 sc injections of insulin at a dose of 0.25 i.u/1 kg, on Days 7, 8, and 9. Buffaloes in all groups were inseminated 16 h after GnRH2 by the same inseminator using frozen semen in straws. Blood samples were collected on Days 0, 3, 5 for serum progesterone assay and on Day 9 to measure serum concentrations of estradiol, insulin and IGF-1. Transrectal ultrasonographic scanning of the ovaries was conducted on Days 7, 8 and 9 to record the diameter of the largest follicle. Pregnancy diagnosis was conducted on Day 30 post-TAI by trans-rectal ultrasonographic scanning of the uterus to calculate conception rate. The serum progesterone concentration showed an increase (p < 0.01) in pregnant compared with non-pregnant buffaloes in both Ovsync-alone and Insulin-sync groups, but not in CIDR-sync group (p > 0.05) on Days 3 and 5. The serum estradiol concentration on Day 9 showed an increase (p < 0.01) in pregnant compared with the non-pregnant buffaloes in all of the treated groups. In Insulin-sync and Ovsync-alone groups, the diameter of the largest follicle (LF) was larger (p < 0.01) in pregnant compared with non-pregnant buffaloes, but in CIDR-sync, the diameter of the (LF) was larger (p < 0.01) in non-pregnant compared with pregnant buffaloes. Also, the results showed that the greatest diameter of LF was observed in pregnant buffaloes in Insulin-sync compared with either pregnant or non-pregnant buffaloes in all groups. It is concluded that modified CIDR-sync and Insulin-sync could improve fertility response through modulating hormonal profile and follicular dynamics in buffaloes during low breeding season.
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Affiliation(s)
- A A Ramoun
- Theriogenology Dept., Faculty of Veterinary Medicine, Kafrelsheikh University, Kafr El-Sheikh, Egypt.
| | - A M Emara
- Theriogenology Dept., Faculty of Veterinary Medicine, Kafrelsheikh University, Kafr El-Sheikh, Egypt
| | - B A Heleil
- Theriogenology Dept., Faculty of Veterinary Medicine, Kafrelsheikh University, Kafr El-Sheikh, Egypt
| | - S A Darweish
- Mahallet-Mousa Buffalo Research Station, Animal Production Research Institute, Agric. Research Centre, Egypt
| | - H A Abou-Ghait
- Mahallet-Mousa Buffalo Research Station, Animal Production Research Institute, Agric. Research Centre, Egypt
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Neglia G, Gasparrini B, Salzano A, Vecchio D, De Carlo E, Cimmino R, Balestrieri A, D'Occhio MJ, Campanile G. Relationship between the ovarian follicular response at the start of an Ovsynch–TAI program and pregnancy outcome in the Mediterranean river buffalo. Theriogenology 2016; 86:2328-2333. [DOI: 10.1016/j.theriogenology.2016.07.027] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Revised: 07/25/2016] [Accepted: 07/26/2016] [Indexed: 01/31/2023]
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8
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Campanile G, Neglia G, D'Occhio MJ. Embryonic and fetal mortality in river buffalo (Bubalus bubalis). Theriogenology 2016; 86:207-13. [DOI: 10.1016/j.theriogenology.2016.04.033] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 12/18/2015] [Accepted: 03/14/2016] [Indexed: 12/19/2022]
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9
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Pandey AK, Ghuman S, Dhaliwal GS, Agarwal SK, Phogat JB. Impact of Buserelin Acetate or hCG Administration on the Day of First Artificial Insemination on Subsequent Luteal Profile and Conception Rate in Murrah Buffalo (Bubalus bubalis). Reprod Domest Anim 2016; 51:478-84. [PMID: 27170495 DOI: 10.1111/rda.12705] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Accepted: 04/12/2016] [Indexed: 11/27/2022]
Abstract
This study was designed to investigate the impact of buserelin acetate (BA) or human chorionic gonadotropin (hCG) administration on the day of first artificial insemination (AI) on subsequent luteal profile (diameter of corpus luteum (CL) and plasma progesterone) and conception rate in Murrah buffalo. The present experiment was carried out at two locations in 117 buffalo that were oestrus-synchronized using cloprostenol (500 μg) administered (i.m.) 11 days apart followed by AI during standing oestrus. Based on treatment (i.m.) at the time of AI, buffalo were randomly categorized (n = 39 in each group) into control (isotonic saline solution, 5 ml), dAI-BA (buserelin acetate, 20 μg) and dAI-hCG (hCG, 3000 IU) group. Out of these, 14 buffalo of each group were subjected to ovarian ultrasonography on the day of oestrus to monitor the preovulatory follicle and on days 5, 12, 16 and 21 post-ovulation to monitor CL diameter. On the day of each sonography, jugular vein blood samples were collected for the estimation of progesterone concentrations. All the buffalo (n = 117) were confirmed for pregnancy on day 40 post-ovulation. The conception rate was better (p < 0.05) in dAI-BA (51.3%) and dAI-hCG (66.7%) groups as compared to their control counterparts (30.8%). Furthermore, the buffalo of dAI-hCG group had improved (p < 0.05) luteal profile, whereas the buffalo of dAI-BA group failed (p > 0.05) to exhibit stimulatory impact of treatment on luteal profile when compared to control group. In brief, buserelin acetate or hCG treatment on the day of first AI leads to an increase in conception rate; however, an appreciable impact on post-ovulation luteal profile was observed only in hCG-treated Murrah buffalo.
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Affiliation(s)
- A K Pandey
- Department of Veterinary Gynaecology and Obstetrics, College of Veterinary Science, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab, India
| | - Sps Ghuman
- Department of Veterinary Gynaecology and Obstetrics, College of Veterinary Science, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab, India
| | - G S Dhaliwal
- Department of Veterinary and Animal Husbandry Extension Education, College of Veterinary Science, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab, India
| | - S K Agarwal
- Central Institute for Research on Goat, Makhdoom, Farah, Mathura, Uttar Pradesh, India
| | - J B Phogat
- Department of Veterinary Gynaecology and Obstetrics, College of Veterinary Science, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, Haryana, India
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Campanile G, Vecchio D, Zicarelli L, Neglia G, Di Palo R, Balestrieri A, D‘Occhio M. Strategies to reduce embryonic mortality in buffalo cows. ITALIAN JOURNAL OF ANIMAL SCIENCE 2016. [DOI: 10.4081/ijas.2007.s2.680] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Vecchio D, Di Palo R, Zicarelli L, Grassi C, Cammarano A, D‘Occhio M, Campanile G. Embryonic mortality in buffalo naturally mated. ITALIAN JOURNAL OF ANIMAL SCIENCE 2016. [DOI: 10.4081/ijas.2007.s2.677] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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12
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Campanile G, Neglia G. Embryonic mortality in buffalo cows. ITALIAN JOURNAL OF ANIMAL SCIENCE 2016. [DOI: 10.4081/ijas.2007.s2.119] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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13
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Campanile G, Vecchio D, Rendina M, Grassi C, Balestrieri A, Di Palo R, Zicarelli L. Ovary response and embryonic mortality in buffaloes treated with GnRH or hCG. ITALIAN JOURNAL OF ANIMAL SCIENCE 2016. [DOI: 10.4081/ijas.2007.s2.673] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Russo M, Luise L, Rossi P, Lo Grasso F, Cocchia N, Catone G. Ultrasonographic appearance of early embryonic mortality in buffalo(Bubalus bubalis). ITALIAN JOURNAL OF ANIMAL SCIENCE 2016. [DOI: 10.4081/ijas.2009.s2.138] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Marco Russo
- Dipartimento di Scienze Cliniche Veterinarie, Università di Napoli “Federico II”, Italy
| | - Luise Luise
- Dipartimento di Scienze Zootecniche ed Ispezione degli Alimenti, Università di Napoli “Federico II”, Italy
| | - Pasquale Rossi
- Dipartimento di Scienze Zootecniche ed Ispezione degli Alimenti, Università di Napoli “Federico II”, Italy
| | - Filippo Lo Grasso
- Dipartimento di Scienze Zootecniche ed Ispezione degli Alimenti, Università di Napoli “Federico II”, Italy
| | - Natascia Cocchia
- Dipartimento di Scienze Cliniche Veterinarie, Università di Napoli “Federico II”, Italy
| | - Giuseppe Catone
- Dipartimento di Scienze Veterinarie, Università di Camerino, Italy
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Pandey A, Dhaliwal G, Ghuman S, Agarwal S. Impact of buserelin acetate or hCG administration on day 5 post-ovulation on subsequent luteal profile and conception rate in Murrah buffalo (Bubalus bubalis). Anim Reprod Sci 2015; 162:80-7. [DOI: 10.1016/j.anireprosci.2015.09.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Revised: 09/20/2015] [Accepted: 09/25/2015] [Indexed: 11/26/2022]
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Neglia G, Restucci B, Russo M, Vecchio D, Gasparrini B, Prandi A, Di Palo R, D'Occhio MJ, Campanile G. Early development and function of the corpus luteum and relationship to pregnancy in the buffalo. Theriogenology 2015; 83:959-67. [DOI: 10.1016/j.theriogenology.2014.11.035] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Revised: 11/20/2014] [Accepted: 11/26/2014] [Indexed: 01/24/2023]
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17
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Rossi P, Vecchio D, Neglia G, Di Palo R, Gasparrini B, D’Occhio MJ, Campanile G. Seasonal fluctuations in the response of Italian Mediterranean buffaloes to synchronization of ovulation and timed artificial insemination. Theriogenology 2014; 82:132-7. [DOI: 10.1016/j.theriogenology.2014.03.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2013] [Revised: 03/07/2014] [Accepted: 03/10/2014] [Indexed: 10/25/2022]
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18
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Pandey A, Ghuman S, Dhaliwal G, Kumar A, Agarwal S. Impact of buserelin acetate or hCG administration on day 12 post-ovulation on subsequent luteal profile and conception rate in buffalo (Bubalus bubalis). Anim Reprod Sci 2013. [DOI: 10.1016/j.anireprosci.2012.10.021] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Vecchio D, Neglia G, Gasparrini B, Russo M, Pacelli C, Prandi A, D'Occhio M, Campanile G. Corpus luteum development and function and relationship to pregnancy during the breeding season in the Mediterranean buffalo. Theriogenology 2012; 77:1811-5. [DOI: 10.1016/j.theriogenology.2011.12.025] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2011] [Revised: 12/09/2011] [Accepted: 12/22/2011] [Indexed: 11/25/2022]
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20
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Ultrasonographic and endocrine aspects of follicle deviation, and acquisition of ovulatory capacity in buffalo (Bubalus bubalis) heifers. Anim Reprod Sci 2010; 123:175-9. [PMID: 21256685 DOI: 10.1016/j.anireprosci.2010.12.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2010] [Revised: 11/21/2010] [Accepted: 12/10/2010] [Indexed: 11/20/2022]
Abstract
The objectives of this study were to determine the interval from ovulation to deviation and the diameter of the dominant (DF) and largest subordinate (SF) follicles at deviation in buffalo (Bubalus bubalis) heifers. Two methods of evaluation (observed vs. calculated) were used. FSH and LH profiles encompassing follicle deviation (Experiment 1), and the follicular diameter when the DF acquired ovulatory capacity (Experiment 2) were also determined. The time of deviation and the diameter of the DF and the largest SF at deviation did not differ between observed and calculated methods. Overall, follicle deviation occurred 2.6 ± 0.2d (mean ± SEM) after ovulation, and the diameters of the DF and SF at deviation were 7.2 ± 0.2 and 6.4 ± 0.2mm, respectively. No changes in plasma levels of FSH or LH were observed (P=0.32 and P=0.96, respectively). Experiment 2 was conducted in two phases according to the diameter of the DF during the first wave of follicular development at the time of LH challenge (25mg of pLH). In the first phase, follicles ranging from 5.0 to 6.0mm (n=7), 6.1 to 7.0mm (n=11), or 7.1 to 8.0mm (n=9) were used, and in the second phase, follicles ranging from 7.0 to 8.4mm (n=10), 8.5 to 10.0mm (n=10), or 10.1 to 12.0mm (n=9) of diameter were used. After the pLH treatment, the DF was monitored by ultrasonography every 12h for 48h. No ovulations occurred in heifers in the first phase. However, in the second phase, an effect of follicular diameter was observed on ovulation rate [7.0-8.4mm (0.0%, 0/10), 8.5-10.0mm (50.0%, 5/10), and 10.0-12.0mm (55.6%, 5/9)]. In summary, follicle deviation occurred 2.6d after ovulation in buffalo (B. bubalis) heifers, when the diameters of the DF and SF were 7.2 and 6.4mm, respectively. No significant changes in plasma concentrations of FSH or LH were detected. Finally, the acquisition of ovulatory capacity occurred when the DF reached 8.5mm in diameter.
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Campanile G, Baruselli PS, Neglia G, Vecchio D, Gasparrini B, Gimenes LU, Zicarelli L, D'Occhio MJ. Ovarian function in the buffalo and implications for embryo development and assisted reproduction. Anim Reprod Sci 2010; 121:1-11. [PMID: 20430540 DOI: 10.1016/j.anireprosci.2010.03.012] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2009] [Revised: 03/08/2010] [Accepted: 03/31/2010] [Indexed: 11/30/2022]
Affiliation(s)
- Giuseppe Campanile
- DISCIZIA, Faculty of Veterinary Medicine, Federico II University, Naples, Italy.
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Vecchio D, Neglia G, Di Palo R, Prandi A, Gasparrini B, Balestrieri A, D'Occhio MJ, Zicarelli L, Campanile G. Is a delayed treatment with GnRH, HCG or progesterone beneficial for reducing embryonic mortality in buffaloes? Reprod Domest Anim 2008; 45:614-8. [PMID: 19090823 DOI: 10.1111/j.1439-0531.2008.01312.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The aims of this study were to verify the efficacy of delayed hormonal treatments performed on day 25 post-insemination on pregnancy rate at 45 and 70 days in buffalo. The trial was performed on 385 buffaloes synchronized by the Ovsynch/TAI protocol and submitted to artificial insemination (AI). Twenty-five days after AI, pregnant animals were assigned to four treatments: (1) GnRH agonist (n = 52), 12 microg of buserelin acetate; (2) hCG (n = 51), 1500 IU of human chorionic gonadotrophin; (3) Progesterone (n = 47), 341 mg of P4 intramuscular (im) every 4 days for three times; (4) Control (n = 54), treatment with physiological saline (0.9% NaCl). Milk samples were collected on days 10, 20 and 25 after AI in all buffaloes to determine progesterone concentration in whey by radioimmunoassay method. Statistical analysis was performed by anova. Pregnancy rate on day 25 after AI was 52.9%, but declined to 41.8% by day 45, indicating an embryonic mortality (EM) of 21%. If only control group is considered, the incidence of EM was 38.9%. Pregnant buffaloes had higher (p < 0.01) progesterone concentrations on day 20 and 25 after AI than both non-pregnant buffaloes and buffaloes that showed EM. The treatments on day 25 increased (p < 0.01) pregnancy rate, although in buffaloes with a low whey progesterone concentration on day 20 and 25 after AI (n = 22); all treatments were ineffective to reduce EM.
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Affiliation(s)
- D Vecchio
- DISCIZIA, Faculty of Veterinary Medicine, Federico II University, Naples, Italy
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Campanile G, Vecchio D, Di Palo R, Neglia G, Gasparrini B, Prandi A, Zicarelli L, D'Occhio MJ. Delayed treatment with GnRH agonist, hCG and progesterone and reduced embryonic mortality in buffaloes. Theriogenology 2008; 70:1544-9. [PMID: 18706685 DOI: 10.1016/j.theriogenology.2008.07.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2007] [Revised: 06/30/2008] [Accepted: 07/01/2008] [Indexed: 10/21/2022]
Abstract
The present study examined the effect of delayed treatment with tropic hormones and progesterone (P4) on embryonic mortality in buffaloes. Buffaloes with a conceptus on Day 25 after AI were assigned to the following treatments: Control (n=41), i.m. physiological saline; GnRH agonist (n=36), i.m. 12 microg buserelin acetate; hCG (n=33), i.m. 1500 IU hCG; P4 (n=38), i.m. 341 mg P4 every 4 days on three occasions. Control buffaloes had an embryonic mortality of 41.4% (17/41) between Days 25 and 45, and this was reduced (P<0.01) by treatment with GnRH agonist (11.1%, 4/36), hCG (9.0%, 3/33) and P4 (13.1%, 5/38). On Day 45, buffaloes treated with hCG and which ovulated had greater (P<0.05) concentrations of P(4) in whey (453 +/- 41 pg/ml) than buffaloes in the same treatment that did not ovulate (297 +/- 32 pg/ml). A similar but non-significant trend was observed for buffaloes treated with GnRH agonist. It was concluded from the findings that the treatment of buffaloes on Day 25 after AI with tropic hormones or P4 is beneficial to processes associated with embryonic implantation.
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Affiliation(s)
- G Campanile
- DISCIZIA, Faculty of Veterinary Medicine, Federico II University, V.F. Delpino 1, Naples 80137, Italy.
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