Progeny of high muscling sires have reduced muscle response to adrenaline in sheep
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چکیده
منابع مشابه
Progeny of high muscling sires have reduced muscle response to adrenaline in sheep.
This study investigated the impact of variation in Australian sheep breeding values (ASBVs) for yearling eye muscle depth (YEMD) within Merino and Poll Dorset sires on intermediary metabolism of progeny. Specifically, the change in the blood concentrations of lactate, non-esterified fatty acids (NEFA) and glucose in response to administration of an exogenous dose of adrenaline was studied. The ...
متن کاملBeef cattle selected for increased muscularity have a reduced muscle response and increased adipose tissue response to adrenaline.
The aim of this experiment was to evaluate the impact of selection for greater muscling on the adrenaline responsiveness of muscle, adipose and liver tissue, as reflected by changes in plasma levels of the intermediary metabolites lactate, non-esterified fatty acids (NEFA) and glucose. This study used 18-month-old steers from an Angus herd visually assessed and selected for divergence in muscli...
متن کاملGenes Contributing to Genetic Variation of Muscling in Sheep
Selective breeding programs aiming to increase the productivity and profitability of the sheep meat industry use elite, progeny tested sires. The broad genetic traits of primary interest in the progeny of these sires include skeletal muscle yield, fat content, eating quality, and reproductive efficiency. Natural mutations in sheep that enhance muscling have been identified, while a number of ge...
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In Germany the estimation of breeding values of young boars and sows is based on their own data for daily gain and backfat as well as fulland/or half-sib information on carcase traits. In breeding companies young boars are often tested under test station conditions using individual pens to get information on feed conversion while gilts are raised in groups and tested at 90 kg of weight for life...
متن کاملApplication of myostatin in sheep breeding programs: A review
Myostatin or growth and differentiation factor 8 (GDF8), has been known as the factor causing double muscling phenotypes in which a series of mutations make the myostatin protein inactive, hence disabling it to regulate the deposition of muscle fibre. This phenotype happens with high frequency in a breed of sheep known as the Texel. Quantitative trait loci (QTL) studies show that a portion of t...
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ژورنال
عنوان ژورنال: Animal
سال: 2011
ISSN: 1751-7311
DOI: 10.1017/s1751731110002764