气候变化条件下高产牛瘤胃代谢特性的研究

Q3 Economics, Econometrics and Finance Naukovi gorizonti Pub Date : 2023-08-25 DOI:10.48077/scihor9.2023.52
Igor Sediuk, Halyna Prusova, Anatoliy Tkachov, Victoria Petrash, Iryna Tkachova
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引用次数: 0

摘要

通过增加瘤胃中防止分解的蛋白质含量来解决奶牛身体热负荷问题,决定了研究的相关性。本研究旨在确定气候变化条件下泌乳期后半期奶牛日粮中各种形式蛋白质和能量向高产奶牛身体的代谢和输送水平。研究方法包括动物技术(采食量的评估,定量配给,组的选择,实验的组织,牛奶产量的测定),生化(测定饲料中基本营养成分的含量,牛奶质量指标),统计和数学。研究了气候变化条件下高产奶牛饲粮中蛋白质的补偿,采用蛋白质饲料添加剂tep混合保护瘤胃分解蛋白。研究证明,在寒冷季节(0-10°C)和夏季(21-36.4°C),奶牛日平均产奶量分别提高9.1%和28.0%。此外,饲喂高蛋白饲料添加剂TEP的奶牛,乳中脂肪和蛋白质含量均有所提高。结果表明,添加抗疤痕分解蛋白的tep混合饲料可使奶牛的蛋白质营养水平从23.18%提高到33.53%,从而降低气候变化对奶牛代谢的影响。因此,已经证明,使用特定的蛋白质饲料来源来调节日粮中非切削蛋白的水平,可以被认为是在整个哺乳生理周期中对抗热应激和增加奶牛产奶量的一个因素,包括在极端高温条件下
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High yielding cows metabolism peculiarities under climate change conditions with the use of feed additive with protein protected from rumen degradation
The research relevance is determined by the problem of thermal load on the body of dairy cows by increasing the content of protein protected from breakdown in the rumen. The research aims to determine the metabolism and level of delivery of various forms of protein and energy to the body of highly productive cows in the diets of cows in the second half of lactation under conditions of climate change. Research methods include zootechnical (assessment of feed intake, rationing, selection of groups, organisation of the experiment, determination of milk production), biochemical (determination of the content of basic nutrients in feed, milk quality indicators), statistical, and mathematical. The compensation of protein in the diet of high-yielding cows under climate change conditions was carried out using the protein feed additive TEP-mix with protein protected from rumen breakdown. It has been proven that its inclusion in the cow’s diet can increase average daily milk production by 9.1% in the cold season (0-10°C) and by 28.0% in the summer (21-36.4°C). In addition, the fat and protein content in milk increased in cows receiving the high-protein feed additive TEP mix. It was found that the increase in protein nutrition of cows from 23.18% to 33.53% with the use of the feed additive TEP-mix with protein protected from scar breakdown ensures a reduction in the impact of climate change on the metabolism of dairy cows. Thus, it has been proved that the use of specific protein feed sources that regulate the level of non-cutting protein in the diet can be considered a factor in combating heat stress and increasing milk production of dairy cows throughout the physiological cycle of lactation, including in extreme conditions of high temperatures
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来源期刊
Naukovi gorizonti
Naukovi gorizonti Economics, Econometrics and Finance-Economics, Econometrics and Finance (miscellaneous)
CiteScore
1.50
自引率
0.00%
发文量
115
审稿时长
4 weeks
期刊最新文献
The agricultural machinery market for crop production and prospects for its development in the postwar period Technology of production and primary processing of milk in farm conditions Cytogenetic activity of a mutagenic factor with high damaging capacity in winter wheat Risk factors associated with stillbirth of piglets in Ukrainian Meat breed sows Prospective analysis of the implementation of the “green” economy in the agricultural sector of Ukraine for the next 10 years
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