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首页> 外文期刊>Turkish Journal of Veterinary and Animal Sciences >The effect of DGAT1 polymorphism on milk production traits in dairycows depending on environmental temperature
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The effect of DGAT1 polymorphism on milk production traits in dairycows depending on environmental temperature

机译：DGAT1基因多态性对奶牛牛奶生产性状的影响，取决于环境温度

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It has long been known that a hot environment negatively influences milk production in cattle. Although molecular mechanisms underlying this phenomenon to a great extent remain to be recognized, they include alterations in lipid metabolism. DGAT1 plays a key role in the synthesis of triacylglycerols and polymorphism of this gene has been proven to have a pronounced influence on milk production. The aim of this study was to establish if the effect of DGAT1:p.K232A on milk-related traits is dependent on environmental thermal conditions. The analysis, performed on 468 cows of the Polish Holstein-Friesian breed, showed that allele DGAT1:K232 significantly increased milk content traits regardless of the temperature. However, its decreasing effect on milk and protein yields as well as the increasing influence on fat yield was not observed in hot weather. Results of this study suggest that the effect of DGAT1:p.K232A on some milk production traits is not constant and may depend on environmental thermal conditions.
机译：早就知道，炎热的环境会对牛的牛奶生产产生负面影响。尽管在很大程度上仍是该现象的分子机制，但仍包括脂质代谢的改变。 DGAT1在三酰甘油的合成中起关键作用，并且该基因的多态性已被证明对牛奶生产具有显着影响。这项研究的目的是确定DGAT1：p.K232A对牛奶相关性状的影响是否取决于环境热条件。对波兰Holstein-Friesian品种的468头母牛进行的分析显示，等位基因DGAT1：K232显着增加了牛奶含量的性状，而与温度无关。然而，在炎热的天气中未观察到其对牛奶和蛋白质产量的降低作用以及对脂肪产量的增加影响。这项研究的结果表明，DGAT1：p.K232A对某些牛奶生产性状的影响不是恒定的，可能取决于环境热条件。

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