Effects of CSN3 and LGB gene polymorphisms on production traits in beef cattle

Genetics and Molecular Biology

Rogério A. Curi²  Henrique N. De Oliveira¹  Marcos A. Gimenes²  Antonio C. Silveira¹  Catalina R. Lopes² 

[1] ,Universidade Estadual Paulista 'Júlio de Mesquita Filho' Instituto de Biociências Departamento de GenéticaBotucatu SP ,Brazil

关键词: beef cattle;    polymorphisms;    candidate gene;    growth;    carcass;   

DOI  :  10.1590/S1415-47572005000200015

来源: SciELO

【 摘 要 】

The objective of the present study was to estimate the allele and genotype frequencies of the CSN3/HinfI and LGB/HaeIII gene polymorphisms in beef cattle belonging to different genetic groups, and to determine the effects of these polymorphisms on growth and carcass traits in these animals, which are submitted to an intensive production model. Genotyping was performed on 79 Nelore, 30 Canchim (5/8 Charolais + 3/8 Zebu) and 275 crossbred cattle originating from the crosses of Simmental (n = 30) and Angus (n = 245) sires with Nelore females. Body weight, weight gain, dressing percentage, longissimus dorsi area and backfat thickness were fitted using the GLM procedure, and least square means of the genotypes were compared by the F test. The results showed that the CSN3/HinfI and LGB/HaeIII polymorphisms did not have any effect on growth or carcass traits (p > 0.05).

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License