Follicular Dynamics and Pregnancy Rate in Nellore Heifers Submitted to Fixed-Time Artificial Insemination Protocols (FTAI)
Abstract
:Simple Summary
Abstract
1. Introduction
2. Materials and Methods
2.1. Study Site
2.2. Experimental Animals
2.3. Experimental Design
2.4. Follicle Dynamics Evaluation—Experiment I
2.5. Evaluation of the Pregnancy Rate—Experiment II
Statistical Analysis
3. Results and Discussion
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
- Rodríguez-Bermúdez, R.; Fouz, R.; Miranda, M.; Orjales, I.; Minervino, A.H.H.; López-Alonso, M. Organic or Conventional Dairy Farming in Northern Spain: Impacts on Cow Reproductive Performance. Reprod. Domest. Anim. 2019, 54, 902–911. [Google Scholar] [CrossRef] [PubMed]
- Minervino, A.H.H.; Ribeiro, H.F.L.; Neves, K.A.L.; Morini, A.C.; Barrêto Júnior, R.A.; Araújo, C.A.S.C.; Vale, W.G. Reproductive Efficiency and Reproductive Diseases of a Nelore Cattle Herd Raised in the West Region of Pará State, Brazil. Med. Vet. 2019, 13, 109–116. [Google Scholar] [CrossRef]
- Baruselli, P.S.; Reis, E.L.; Marques, M.O.; Nasser, L.F.; Bó, G.A. The Use of Hormonal Treatments to Improve Reproductive Performance of Anestrous Beef Cattle in Tropical Climates. Anim. Reprod. Sci. 2004, 82–83, 479–486. [Google Scholar] [CrossRef] [PubMed]
- Baruselli, P.S.; Ferreira, R.M.; Colli, M.H.A.; Elliff, F.M.; Sá_Filho, M.F.; Vieira, L.; Freitas, B.G. Timed Artificial Insemination: Current Challenges and Recent Advances in Reproductive Efficiency in Beef and Dairy Herds in Brazil. Anim. Reprod. 2017, 14, 558–571. [Google Scholar] [CrossRef]
- Baruselli, P.S.; Ferreira, R.M.; Sá Filho, M.F.; Bó, G.A. Review: Using Artificial Insemination v. Natural Service in Beef Herds. Animal 2018, 12, s45–s52. [Google Scholar] [CrossRef] [PubMed]
- Faleiro, N.S.; Neves, K.A.L.; Pereira, L.L.; da Silva, C.M.G.; Vale, W.G.; Minervino, A.H.H. Effect of Oestrous Resynchronization on the Reproductive Efficiency of Zebu Cows. Reprod. Domest. Anim. 2019, 54, 1050–1053. [Google Scholar] [CrossRef]
- Vale, W.G.; Melo, P.C.H.; Walter, E.; Ribeiro, H.F.L.; Rolim-Filho, S.T.; Reis, A.N.; Sousa, J.S.; Silva, A.O.A. Fixed Timed Artificial Insemination (FTAI) through the Progesterone (CIDR) of 1st, 2nd, 3rdand 4thuses in Bovine. I. Conception Rate Related to Reproductive Category, Related to Body Condition Scoring (BCS), Related to Calf Withdrawal and Use of ECG. Livest. Res. Rural. Dev. 2011, 23, 1–8. [Google Scholar]
- Pereira, L.L.L.; Ferreira, A.P.A.; Vale, W.W.G.; Serique, L.R.L.; Neves, K.A.L.; Morini, A.C.A.; Monteiro, B.M.B.; Minervino, A.H.H. Effect of Body Condition Score and Reuse of Progesterone-Releasing Intravaginal Devices on Conception Rate Following Timed Artificial Insemination in Nelore Cows. Reprod. Domest. Anim. 2018, 53, 624–628. [Google Scholar] [CrossRef]
- Meneghetti, M.; Filho, O.G.S.; Peres, R.F.G.; Lamb, G.C.; Vasconcelos, J.L.M. Fixed-Time Artificial Insemination with Estradiol and Progesterone for Bos indicus Cows I: Basis for Development of Protocols. Theriogenology 2009, 72, 179–189. [Google Scholar] [CrossRef]
- Carvalho, N.A.T.; Soares, J.G.; Souza, D.C.; Vannucci, F.S.; Amaral, R.; Maio, J.R.G.; Sales, J.N.S.S.; Filho, M.F.; Baruselli, P.S. Different Circulating Progesterone Concentrations during Synchronization of Ovulation Protocol Did Not Affect Ovarian Follicular and Pregnancy Responses in Seasonal Anestrous Buffalo Cows. Theriogenology 2014, 81, 490–495. [Google Scholar] [CrossRef]
- Sá Filho, M.F.; Santos, J.E.P.; Ferreira, R.M.; Sales, J.N.S.; Baruselli, P.S. Importance of Estrus on Pregnancy per Insemination in Suckled Bos indicus Cows Submitted to Estradiol/Progesterone-Based Timed Insemination Protocols. Theriogenology 2011, 76, 455–463. [Google Scholar] [CrossRef] [PubMed] [Green Version]
- Vasconcelos, J.L.M.; Pereira, M.H.C.; Wiltbank, M.C.; Guida, T.G.; Lopes, F.R.; Sanches, C.P.; dos Barbosa, L.F.S.P.; Costa, W.M.; Munhoz, A.K. Evolution of Fixed-Time AI in Dairy Cattle in Brazil. Anim. Reprod. 2018, 15, 940–951. [Google Scholar] [CrossRef]
- Peres, R.F.G.; Júnior, I.C.; Filho, O.G.S.; Nogueira, G.P.; Vasconcelos, J.L.M. Strategies to Improve Fertility in Bos indicus Postpubertal Heifers and Nonlactating Cows Submitted to Fixed-Time Artificial Insemination. Theriogenology 2009, 72, 681–689. [Google Scholar] [CrossRef] [PubMed]
- Bridges, G.A.; Lake, S.L.; Kruse, S.G.; Bird, S.L.; Funnell, B.J.; Arias, R.; Walker, J.A.; Grant, J.K.; Perry, G.A. Comparison of Three CIDR-Based Fixed-Time AI Protocols in Beef Heifers. J. Anim. Sci. 2014, 92, 3127–3133. [Google Scholar] [CrossRef]
- Kasimanickam, R.; Schroeder, S.; Assay, M.; Kasimanickam, V.; Moore, D.A.; Gay, J.M.; Whittier, W.D. Influence of Temperament Score and Handling Facility on Stress, Reproductive Hormone Concentrations, and Fixed Time AI Pregnancy Rates in Beef Heifers. Reprod. Domest. Anim. 2014, 49, 775–782. [Google Scholar] [CrossRef]
- Bottino, M.P.; Simões, L.M.S.; Silva, L.A.C.L.; Girotto, R.W.; Scandiuzzi, L.A.; Massoneto, J.P.M.; Baruselli, P.S.; Souza, J.C.; Sales, J.N.S. Effects of ECG and FSH in Timed Artificial Insemination Treatment Regimens on Estrous Expression and Pregnancy Rates in Primiparous and Multiparous Bos indicus Cows. Anim. Reprod. Sci. 2021, 228, 106751. [Google Scholar] [CrossRef]
- Saraiva, M.V.A.; Matos, M.H.T.; Faustino, L.R.; Celestino, J.J.H.; Silva, J.R.V.; Figueiredo, J.R. Hormônios Hipofisários e Seu Papel Na Foliculogênese Pituitary Hormones and Their Role in Folliculogenesis. Rev. Bras. Reprod. Anim 2010, 4, 206–221. [Google Scholar]
- Sales, J.N.S.N.S.; Crepaldi, G.A.A.; Girotto, R.W.W.; Souza, A.H.H.; Baruselli, P.S.S. Fixed-Time AI Protocols Replacing ECG with a Single Dose of FSH Were Less Effective in Stimulating Follicular Growth, Ovulation, and Fertility in Suckled-Anestrus Nelore Beef Cows. Anim. Reprod. Sci. 2011, 124, 12–18. [Google Scholar] [CrossRef]
- Sá Filho, M.F.; Torres-Júnior, J.R.S.; Penteado, L.; Gimenes, L.U.; Ferreira, R.M.; Ayres, H.; Castro e Paula, L.A.; Sales, J.N.S.; Baruselli, P.S. Equine Chorionic Gonadotropin Improves the Efficacy of a Progestin-Based Fixed-Time Artificial Insemination Protocol in Nelore (Bos indicus) Heifers. Anim. Reprod. Sci. 2010, 118, 182–187. [Google Scholar] [CrossRef]
- Pegorer, M.F.; Ereno, R.L.; Satrapa, R.A.; Pinheiro, V.G.; Trinca, L.A.; Barros, C.M. Neither Plasma Progesterone Concentrations nor Exogenous ECG Affects Rates of Ovulation or Pregnancy in Fixed-Time Artificial Insemination (FTAI) Protocols for Puberal Nellore Heifers. Theriogenology 2011, 75, 17–23. [Google Scholar] [CrossRef]
- De Rensis, F.; López-Gatius, F. Use of Equine Chorionic Gonadotropin to Control Reproduction of the Dairy Cow: A Review. Reprod. Domest. Anim. 2014, 49, 177–182. [Google Scholar] [CrossRef] [PubMed]
- Martorano, L.G.; Vitorino, M.I.; Silva, B.P.P.C.; da Moraes, J.R.S.C.; Lisboa, L.S.; Sotta, E.D.; Reichardt, K. Climate Conditions in the Eastern Amazon: Rainfall Variability in Belem and Indicative of Soil Water Deficit. Afr. J. Agric. Res. 2017, 12, 1801–1810. [Google Scholar] [CrossRef] [Green Version]
- Ayres, H.; Ferreira, R.M.; de Souza Torres-Júnior, J.R.; Demétrio, C.G.B.; de Lima, C.G.; Baruselli, P.S. Validation of Body Condition Score as a Predictor of Subcutaneous Fat in Nelore (Bos indicus) Cows. Livest. Sci. 2009, 123, 175–179. [Google Scholar] [CrossRef]
- Neves, K.A.; Cardoso, D.A.; Castro, S.R.; Pacheco, A.; Beldini, T.P.; Neves, A.C.; Baruselli, P.; Ximenes, T.; Vale, W.G. Pregnancy Rates in Timed Artificial Insemination in Nelore Cows (Bos Taurus Indicus) Using Estradiol Benzoate or Estradiol Cipionate as Ovulation Inducers Associated WitheCG or FSHp. IOSR J. Agric. Vet. Sci. Ver I 2016, 9, 2319–2372. [Google Scholar] [CrossRef]
- Sá Filho, M.F.; Penteado, L.; Siqueira, G.R.; Soares, J.G.; Mendanha, M.F.; Macedo, G.G.; Baruselli, P.S. Timed Artificial Insemination Should Be Performed Early When Used Norgestomet Ear Implants Are Applied for Synchronizing Ovulation in Beef Heifers. Theriogenology 2013, 80, 642–647. [Google Scholar] [CrossRef] [Green Version]
- Rossa, L.A.F.; Bertan, C.M.; de Almeida, A.B.; Gaspar, P.D.S.; Mazza, P.H.; Binelli, M.; Baruselli, P.S.; Madureira, E.H.; Madureira, E.H. Efeito Do ECG Ou Benzoato de Estradiol Associado Ao Norgestomet Na Taxa de Concepção de Vacas de Corte Submetidas à IATF No Pós-Parto. J. Vet. Res. Anim. Sci. 2009, 46, 199. [Google Scholar] [CrossRef] [Green Version]
- Souza, A.L.B.; Kozicki, L.E.; Pereira, J.F.S.; Segui, M.S.; Weiss, R.R.; Bertol, M.A.F. Eficiência Da Gonadotrofina Coriônica Eqüina (ECG) e Do Desmame Temporário (DT) Em Protocolos Para a Inseminação Artificial Em Tempo Fixo (IATF) Em Vacas Nelore, Previamente Tratadas Com Progesterona (P4) e Benzoato de Estradiol (BE). Arch. Vet. Sci. 2015, 20, 73–76. [Google Scholar] [CrossRef]
- Sá Filho, O.G.; Meneghetti, M.; Peres, R.F.G.; Lamb, G.C.; Vasconcelos, J.L.M. Fixed-Time Artificial Insemination with Estradiol and Progesterone for Bos indicus Cows II: Strategies and Factors Affecting Fertility. Theriogenology 2009, 72, 210–218. [Google Scholar] [CrossRef]
Variables | FSH | eCG | p |
---|---|---|---|
Experiment I | |||
N | 32 | 32 | NA |
B.C.S. § | 3.11 ± 0.21 | 3.10 ± 0.17 | 0.957 |
Diameter DF at D8 (mm) § | 10.5 ± 2.76 | 10.14 ± 2.92 | 0.915 |
Diameter OF (mm) § | 12.75 ± 2.70 | 12.14 ± 3.5 | 0.882 |
Ovulation time * (h) § | 77.76 ± 9.24 | 74.48 ± 19.34 | 0.212 |
Ovulation rate † | 78.12% | 87.5% | 0.014 |
Experiment II | |||
N | 97 | 98 | NA |
Pregnancy Rate † | 40.2% | 58.1% | 0.012 |
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Silva, F.P.d.; Neves, K.A.L.; Correa, F.R.A.; Silva, L.K.X.; Batista, H.R.; Silva, W.C.d.; Mercado Caruso, N.; Minervino, A.H.H. Follicular Dynamics and Pregnancy Rate in Nellore Heifers Submitted to Fixed-Time Artificial Insemination Protocols (FTAI). Vet. Sci. 2022, 9, 377. https://doi.org/10.3390/vetsci9080377
Silva FPd, Neves KAL, Correa FRA, Silva LKX, Batista HR, Silva WCd, Mercado Caruso N, Minervino AHH. Follicular Dynamics and Pregnancy Rate in Nellore Heifers Submitted to Fixed-Time Artificial Insemination Protocols (FTAI). Veterinary Sciences. 2022; 9(8):377. https://doi.org/10.3390/vetsci9080377
Chicago/Turabian StyleSilva, Filipe Prudente da, Kedson Alessandri Lobo Neves, Francisco R. A. Correa, Lílian K. X. Silva, Helder R. Batista, Welligton C. da Silva, Nohora Mercado Caruso, and Antonio Humberto Hamad Minervino. 2022. "Follicular Dynamics and Pregnancy Rate in Nellore Heifers Submitted to Fixed-Time Artificial Insemination Protocols (FTAI)" Veterinary Sciences 9, no. 8: 377. https://doi.org/10.3390/vetsci9080377