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Growth and carcass traits associated with GH1/Alu I and POU1F1/Hinf I gene polymorphisms in Zebu and crossbred beef cattle

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TLDR
The results showed significant associations between the LL genotype of the GH1/Alu I polymorphism and higher weight gain and body weight at slaughter (p < 0.05) and the POU1F1/Hinf I polymorphisms did not have any effect on the growth and carcass traits analyzed.
Abstract
The objectives of the present study were to estimate the allele and genotype frequencies of the GH1/Alu I and POU1F1/Hinf I polymorphisms in beef cattle belonging to different genetic groups and to determine the effects of these polymorphisms on growth and carcass traits in cattle submitted to feedlot management, an intensive production model. Genotyping was performed on 384 animals, including 79 Nellore, 30 Canchim (5/8 Charolais + 3/8 Zebu), 30 Simmental x Nellore crossbred and 245 Angus x Nellore crossbred cattle. Body weight, weight gain, dressing percentage, Longissimus dorsi area and backfat thickness were fitted using the General Linear Model (GLM) procedure of the SAS program and the least square means of the genotypes were compared using the F test. The results showed significant associations between the LL genotype of the GH1/Alu I polymorphism and higher weight gain and body weight at slaughter (p < 0.05). The POU1F1/Hinf I polymorphism did not have any effect on the growth and carcass traits analyzed.

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A critical analysis of production-associated DNA polymorphisms in the genes of cattle, goat, sheep, and pig

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References
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Journal ArticleDOI

The pituitary-specific transcription factor GHF-1 is a homeobox-containing protein

TL;DR: The isolation of bovine and rat GHF-1 cDNA clones is described and it is indicated that this region of the protein functions as its DNA binding domain, which correlates with the selective transcription of its target, the GH gene.
Journal ArticleDOI

Factors that alter the growth and development of ruminants.

TL;DR: By manipulating the supply of specific nutrients and hormones, it may prove feasible in the future to reduce fat deposition in specific tissues and to alter mature body protein mass.
Journal ArticleDOI

Pit-1-dependent expression of the receptor for growth hormone releasing factor mediates pituitary cell growth.

TL;DR: The cloning of mouse and rat complementary DNAs encoding a new member of the seven-transmembrane-helix, G-protein-coupled receptor family restricted to the pituitary gland, which mediates increases in intracellular cAMP and cAMP-dependent gene transcription in response to GRF is reported.
Book

Genetic data analysis. Methods for discrete population genetic data.

Bruce S. Weir
TL;DR: This book contains the tools for analyzing genetic data on morphological characters, isozyme frequencies, restriction fragment patterns, and DNA sequences, and the importance of clarifying the sampling frame is stressed.
Journal ArticleDOI

Role of the somatotropic axis in the mammalian metabolism.

TL;DR: This review summarizes the complexity of the regulation of the metabolism by the somatotropic axis using different examples such as special nutritional situations or growth promoters administration.
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