E-ISSN 2218-6050 | ISSN 2226-4485
 

Research Article


Monitoring of recessive defects associated with low reproductive performance in dairy cattle in Uruguay

Andrea Branda-Sica, Rody Artigas, Elena de Torres, Evangelina Kinley, Paula Nicolini, María Teresa Federici, Silvia Llambí.


Abstract
Background:
Most dairy cattle breeds originate show an average generational inbreeding rate of 1%, which favors the occurrence of recessive defects associated with low reproductive performance.
Aim:
The objective of this study was to monitor recessive defects associated with low reproductive performance in dairy cattle.
Methods:
To monitor bulls carrying the Holstein Friesian haplotype (HH) 1, HH3 and HH4 haplotypes, we analyzed the records of 3,028 national and imported Holstein Friesian bulls, from the 2021 updated sires’ catalog published by “Evaluaciones Genéticas Lecheras”; and to determine the presence of these mentioned haplotypes, as well as Jersey haplotype (JH) 1 and complex vertebral malformation (CVM), were genotype with the GeneTitan® 2,500 SNP bovine chip, estimate their frequencies and evaluate their impact on the fertility of 100 Holstein Friesian cows and 70 Holstein Friesian-Jersey crosses belonging to an experimental dairy.
Results:
From a total of 1,468 (48.5%) bulls with genetic information from the sires’ catalog for HH1 and 1,471 (48.6%) for HH3 and HH4, we found 90 (6.1%) carriers for HH1, 60 (4.1%) for HH3 and 6 (0.4%) for HH4, respectively. By genotyping with the chip, we calculated the herd frequency of the mutant alleles and herd prevalence of carriers for HH1 and CVM as q=0.003 and 0.022; 0.59% and 4.3% (call rate >0.99), respectively. No mutant alleles were found for HH3, HH4 and JH1 in the analyzed population. We examined reproductive data by observing the presence of CVM and HH1 mutant alleles in repeat cows with an average of 4 services to achieve pregnancy.
Conclusion:
This study demonstrated the presence of recessive defects associated with low reproductive performance in the analyzed population, which can affect the health and the productivity of dairy cattle. Therefore, cows and bulls should be closely monitored through genetic testing to lower the incidence of recessive defects in dairy cattle.

Key words: Artificial insemination, Bos taurus, Fertility, Hereditary diseases


 
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How to Cite this Article
Pubmed Style

Branda-Sica A, Artigas R, Torres Ed, Kinley E, Nicolini P, Federici MT, Llambí S. Monitoring of recessive defects associated with low reproductive performance in dairy cattle in Uruguay. Open Vet J. 2023; 13(10): 1290-1298. doi:10.5455/OVJ.2023.v13.i10.8


Web Style

Branda-Sica A, Artigas R, Torres Ed, Kinley E, Nicolini P, Federici MT, Llambí S. Monitoring of recessive defects associated with low reproductive performance in dairy cattle in Uruguay. https://www.openveterinaryjournal.com/?mno=159408 [Access: February 13, 2024]. doi:10.5455/OVJ.2023.v13.i10.8


AMA (American Medical Association) Style

Branda-Sica A, Artigas R, Torres Ed, Kinley E, Nicolini P, Federici MT, Llambí S. Monitoring of recessive defects associated with low reproductive performance in dairy cattle in Uruguay. Open Vet J. 2023; 13(10): 1290-1298. doi:10.5455/OVJ.2023.v13.i10.8



Vancouver/ICMJE Style

Branda-Sica A, Artigas R, Torres Ed, Kinley E, Nicolini P, Federici MT, Llambí S. Monitoring of recessive defects associated with low reproductive performance in dairy cattle in Uruguay. Open Vet J. (2023), [cited February 13, 2024]; 13(10): 1290-1298. doi:10.5455/OVJ.2023.v13.i10.8



Harvard Style

Branda-Sica, A., Artigas, . R., Torres, . E. d., Kinley, . E., Nicolini, . P., Federici, . M. T. & Llambí, . S. (2023) Monitoring of recessive defects associated with low reproductive performance in dairy cattle in Uruguay. Open Vet J, 13 (10), 1290-1298. doi:10.5455/OVJ.2023.v13.i10.8



Turabian Style

Branda-Sica, Andrea, Rody Artigas, Elena de Torres, Evangelina Kinley, Paula Nicolini, María Teresa Federici, and Silvia Llambí. 2023. Monitoring of recessive defects associated with low reproductive performance in dairy cattle in Uruguay. Open Veterinary Journal, 13 (10), 1290-1298. doi:10.5455/OVJ.2023.v13.i10.8



Chicago Style

Branda-Sica, Andrea, Rody Artigas, Elena de Torres, Evangelina Kinley, Paula Nicolini, María Teresa Federici, and Silvia Llambí. "Monitoring of recessive defects associated with low reproductive performance in dairy cattle in Uruguay." Open Veterinary Journal 13 (2023), 1290-1298. doi:10.5455/OVJ.2023.v13.i10.8



MLA (The Modern Language Association) Style

Branda-Sica, Andrea, Rody Artigas, Elena de Torres, Evangelina Kinley, Paula Nicolini, María Teresa Federici, and Silvia Llambí. "Monitoring of recessive defects associated with low reproductive performance in dairy cattle in Uruguay." Open Veterinary Journal 13.10 (2023), 1290-1298. Print. doi:10.5455/OVJ.2023.v13.i10.8



APA (American Psychological Association) Style

Branda-Sica, A., Artigas, . R., Torres, . E. d., Kinley, . E., Nicolini, . P., Federici, . M. T. & Llambí, . S. (2023) Monitoring of recessive defects associated with low reproductive performance in dairy cattle in Uruguay. Open Veterinary Journal, 13 (10), 1290-1298. doi:10.5455/OVJ.2023.v13.i10.8