Season of the year at calving and reproductive performance of crossbred dairy cows
Published 2022-11-17
Keywords
- Conception,
- Heat stress,
- Dairy cows
How to Cite
This work is licensed under a Creative Commons Attribution 4.0 International License.
Abstract
The study aimed to evaluate the effects of the season of the year at calving on the conception rate at the first insemination post-partum and the calving-conception interval of crossbred dairy cows. The study was conducted on seven farms located in Ituiutaba/MG. The reproductive management was performed every 30 days for gynecologic evaluation and pregnancy diagnostic. At the first post-partum service, cows detected in estrus were submitted to artificial insemination (AI) 12 hours after estrus detection or bred by the sire (controlled breeding – CB). Cows that were not detected in estrus until 60 days after calving were submitted to timed artificial insemination (TAI). The subsequent services followed the criteria of each farm. A total of 841 parturitions from 581 cows occurred from January 2011 to June 2014 were evaluated. Data were analyzed by PROC GLIMMIX of SAS (p<0.05), including the farm, the season of the year at calving, the type of the first insemination post-partum and, possible interactions in the model. Cows submitted to CB presented a higher conception rate at first insemination post-partum than cows submitted to conventional AI and TAI (p<0.001). There was no interaction between the service type and the season of the year at calving (p=0.2989) on the conception rate. The season of the year at calving did not influence the conception rate at first insemination post-partum of crossbred dairy cows (p=0.36). However, cows that calved during spring-summer had a prolonged interval in relation to cows that calved during autumn-winter (p=0.0044). In conclusion, crossbred dairy cows whose calving occurs in the hottest and wettest seasons of the year show a subsequent impairment of their reproductive performance.
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References
- AYRES, G.F.; BORTOLLETO, N.; MELO JÚNIOR, M.; HOOPER, H.B.; NASCIMENTO, M.R.B.M.; SANTOS, R.M. Efeito da estação do ano sobre a taxa de concepção e perda gestacional em vacas leiteiras mestiças. Bioscience Journal, v.30, supp.2, p.866-872, 2014.
- BONATO, G.L.; SANTOS, R.M. Efeito da duração do intervalo de partos e estação do ano ao parto sobre a eficiência reprodutiva subsequente de vacas leiteiras mestiças. Acta Scientiae Veterinariae, v.40, n.1, p.1-4, 2012.
- CAMPOS, C.C.; SANTOS, R.M. Conception rate and estrous return detection after TAI in Holstein cows. Semina: Ciências Agrárias, v.36, n.3, p.1945-1954, 2015.
- CAMPOS, C.C.; PRADO, F.L.; REIS, J.P.J.; CARNEIRO, L.C.; SILVA, P.R.B.; MORAES, G.F.; SANTOS, R.M. Effects of clinical mastitis and puerperal diseases on reproductive efficiency of dairy cows. Tropical Animal Health and Production, v.52, n.6, p.3061-3068, 2020.
- COLAZO, M.G.; BÓ, G.A.; ILLUMINANTI, H.; MEGLIA, G.; SCHMIDT, E.E.; BARTOLOMÉ, J. Fixed-time artificial insemination in beef cattle using CIDR-B devices, progesterone and estradiol benzoate. Theriogenology, v.51, p.404, abstract, 1999.
- DE LA SOTA, R.L.; BURKE, J.M.; RISCO, C.A.; MOREIRA, F.; DELORENZO, M.A.; THATCHER, W.W. Evaluation of timed insemination during summer heat stressin lactating dairy cattle. Theriogenology, v.49, n.4, p.761-770, 1998.
- DE RENZIS, F.; SCARAMUZZI, R.J. Heat stress and seasonal effects on reproduction in the dairy cow: a review. Theriogenology, v.60, n.6, p.1139-1151, 2003.
- DE VRIES, A.; STEENHOLDT, C.; RISCO C.A. Pregnancy Rates and milk production in natural service and artificially inseminated dairy herds in Florida and Georgia. Journal of Dairy Science, v.88, n.3, p.948–956, 2005.
- DUBUC, J.; DUFFIELD, T.F.; LESLIE, K.E.; WALTON, J.S.; LEBLANC, S.J. Risk factors for postpartum uterine diseases in dairy cows. Journal of Dairy Science, v.93, n.12, p.5764-5771, 2010.
- HANSEN, P.J. Effects of environment on bovine reproduction. In: Youngquist, R.S. (Ed.), Current Therapy in Large Animal Theriogenology. 1a ed., Saunders, W.B. Philadelphia, p.403-415, 1997.
- HANSEN, P.J.; ARÉCHIGA, C.F. Strategies for managing reproduction in the heat-stressed dairy cow. Journal of Animal Science, v.77, supp.2, p.36-50, 1999.
- HANSEN, P.J.; DROST, M.; RIVERA, M.R.; PAULA-LOPES, F.F.; AL-KATANANI, M.Y.; KRININGER, E.C.; CHASE, C.C. Adverse impact of heat stress on embryo production: causes and strategies for mitigation. Theriogenology, v.55, n.1, p.91-103, 2001.
- HANSEN, P.J. Managing the heat-stressed cow to improve reproduction. In: Western Dairy Management Conference, 7ª ed., Reno, NV. Proceedings... p.63-76, 2005.
- INMET, Instituto Nacional de Meteorologia. Disponível em: <http://www.inmet.gov.br/ portal/index.php?r=bdmep/bdmep>. Acesso em: 16 dez 2014.
- KASIMANICKAM, R.; CORNWELL, J.M.; NEBEL, R.L. Fertility following fixed-time AI or insemination at observed estrus in Ovsynch and Heatsynch programs in lactating dairy cows. Theriogenology, v.63, n.9, p.2550-2559, 2005.
- LIMA, F.S.; RISCO, C.A.; THATCHER, M.J.; BENZAQUEN, M.E.; ARCHBALD, L.F.; SANTOS, J.E.P.; THATCHER, W.W. Comparison of reproductive performance in lactating dairy cows bred by natural service or timed artificial insemination. Journal of Dairy Science, v.92, n.11, p.5456-5466, 2009.
- LOPEZ-GATIUS, F.; LOPEZ BEJAR, M.; FENECH, M.; HUNTER, R.H.F. Ovulation failure and double ovulation in dairy cattle: risks factors and effects. Theriogenology, v.63, n.5, p.1298-1307, 2005.
- NASCIMENTO, C.C.N.; NASCIMENTO, M.R.B.M.; DA SILVA, N.A.M. Ondas de calor no Triângulo Mineiro e Alto Paranaíba e seu efeito na produção leiteira e consumo alimentar em bovinos. Bioscience Journal, v.30, n.5, p.1488-1495, 2014.
- NRC. National Research Council. Nutrient requirements of dairy cattle. 7ª ed., Washington, D.C.: National Academic Press, 2001. 381p.
- PEREIRA, J.C.C. Fundamentos de bioclimatologia aplicados à produção animal. 1a ed., Belo Horizonte: MG, Editora FEPMVZ, 2005. 195p.
- PICCARDI, M.; CAPITAINE FUNES, A., BALZARINI, M.; BÓ, G.A. Some factors affecting the number of days open in Argentinean dairy herds. Theriogenology, v.79, n.5, p.760-765, 2013.
- ROCHA, D.R.; SALLES, M.G.F.; MOURA, A.A.A.N.; ARAÚJO, A.A. Impacto do estresse térmico na reprodução da fêmea bovina. Revista Brasileira de Reprodução Animal, v.36, n.1, p.18-24, 2012.
- ROCHE, J.F. The effect of nutritional management of the dairy cow on reproductive efficiency. Animal Reproduction Science, v.96, n.3/4, p.282-296, 2006.
- SANTOS, J.E.P.; RUTIGLIANO, H.M.; SÁ FILHO, M.F. Risk factors for resumption of postpartum estrous cycles and embryonic survival in lactating dairy cows. Animal Reproduction Science, v.110, n.3/4, p.207-221, 2009.
- THATCHER, W.W.; FLAMENBAUM, I.; BLOCK, J.; BILBY, T.R. Manejo de estresse calórico e estratégias para melhorar o desempenho lactacional e reprodutivo em vacas de leite. In: XIV Curso Novos Enfoques na Produção e Reprodução de Bovinos, Uberlândia. Anais.... p.2-25, 2010.
- ZERON, Y.; OCHERETNY, A.; KEDAR, O.; BOROCHOV, A.; SKLAN, D.; ARAV, A. Seasonal changes in bovine fertility: relation to developmental competence of oocytes, membrane properties and fatty acid composition of follicles. Reproduction, v.121, n.3, p.447-454, 2001.