Association of the bovine growth hormone gene with Holstein cattle reproductive parameters
Journal Title: Revista MVZ Cordoba - Year 2014, Vol 19, Issue 3
Abstract
Objective. To determine the association of intron 3 polymorphism of the bovine growth hormone (BGH) gene, with age at first service, first birth, first postpartum service and second birth in a population of Holstein cows in the state of Antioquia. Materials and methods. The study was conducted on 408 Holstein cows in 8 herds. Genotyping was performed using PCR-RFLP technique with DNA extracted from peripheral blood by the salting out technique. The Phenotypic information used was collected for 4 years, from a dairy production control program. To determine the association between characteristics and gene polymorphism, parametric statistical analyzes were performed as generalized linear models and linear regression analysis. Results. Allele frequency (positive) was 0.91 and was 0.09 for (negative) allele. Genotypic frequencies were 0.77, 0.2 and 0.03 for (positive/positive), (positive/negative) and (negative/negative) respectively. There were significant differences between the mean of age at first service, age at first birth, age at first postpartum service and age at second birth. For all of the (negative/negative) genotype characteristics there were greater ages for each event. Conclusions. These results suggest that intron-3 polymorphism of the BGH gene is associated with reproductive traits, facilitating the selection of individuals with favorable genotypes for use in breeding programs.
Authors and Affiliations
Juliana Arango G, M. Sc *| Universidad Nacional de Colombia, Facultad de Ciencias Agropecuarias, Departamento de Producción Animal, Grupo BIOGEM, Sede Medellín, AA 1779, Colombia.Correspondencia: jarangog@unal.edu.co., Julián Echeverri Z, Ph. D| Universidad Nacional de Colombia, Facultad de Ciencias Agropecuarias, Departamento de Producción Animal, Grupo BIOGEM, Sede Medellín, AA 1779, Colombia., Albeiro López H, Ph. D| Universidad Nacional de Colombia, Facultad de Ciencias Agropecuarias, Departamento de Producción Animal, Grupo BIOGEM, Sede Medellín, AA 1779, Colombia.
Keywords
Related Articles
- EP ID EP3369
- DOI -
- Views 352
- Downloads 19
Subphrenic partial pericardiectomy in a dog due to quimodectoma
We describe the case of a Boxer dog, male 9 years old was presented with cardiac tamponade four times by recurrent pericardial effusions, which undertaken a partial pericardiectomy subphrenic as definitive treatment. Dur...
The use of new practices for assessment of body condition score
Objective. Two body condition scoring systems were compared to those of interpretation of cow’s body condition at a local farm located in Aydin region, Turkey. Materials and methods. A total of 50 head Holstein-Friesian...
Parasites and hepatic histopathological lesions in lisa (Mugil incilis) from Totumo mash, North of Colombia
Objective. To assess the levels of parasitism by nematodes and trematodes, as well as the hepatic histopathological alterations present in Mugil incilis (Lisa) from Totumo marsh, North of Colombia. Materials and methods....
Association between leptin receptors in the testicle, leptin and testosterone levels in puber male calves
Objectives. To describe the presence of leptin receptors (ObR) in the testicle during puberty in calves and study the possible association between the expression of the testicles and the levels of leptin (L) and testoste...
Karyotype of Espeletiopsis muiska
Objective. The cell cycle and chromosomic description of Espeletiopsis muiska was studied in meristematic cells of root tips obtained from in vitro culture of embryos on MS medium supplemented with IBA. Materials and met...