波兰荷斯坦-弗里西亚奶牛与F1杂交波兰荷斯坦-弗里西亚与瑞典红奶牛产奶量性状的比较

IF 1.1 4区农林科学 Q3 AGRICULTURE, DAIRY & ANIMAL SCIENCE Mljekarstvo Pub Date : 2021-03-16 DOI:10.15567/MLJEKARSTVO.2021.0207

Paweł Solarczyk

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引用次数: 3

摘要

由于集约化的育种工作，导致了种群内多样性的减少和近交系的抑制，可能会损害其功能性状。此外，研究表明，生产性状与繁殖、健康、寿命等功能性状呈负相关，对奶牛场的利润影响非常大。本研究的目的是比较波兰荷斯坦弗里西奶牛(PHF)与瑞典红牛(SRB)杂交获得的杂种产奶量性状与纯PHF奶牛的产奶量。本研究选取100头初产奶牛，分为两组。试验组为50头杂交牛(PHF×SRB)，对照组为50头纯种PHF牛。研究表明，与PHF相比，PHF×SRB的乳成分含量更高(脂肪含量11.78%，蛋白质含量9.06%，干物质含量5.75%)。在杂交种中也显示出较低的SCC水平(38.94%)，这表明它们对乳房疾病的抵抗力更高。本试验表明，杂种优势对PHF奶牛与SRB公牛杂交获得的F1代产奶性能参数和工艺品质有非常显著的影响。

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A comparison between Polish Holstein-Friesian and F1 hybrid Polish Holstein Friesian × Swedish Red cows in terms of milk yield traits

The intensive breeding work of Holstein-Friesian cattle has led to the decrease in the diversity within the population and to inbreeding depression, which may impair its functional traits. In addition, as shown by the research, production traits are negatively correlated with functional traits such as reproduction, health, and longevity, which have a very strong impact on the profit of dairy farms. The aim of this study was to compare milk yield traits of hybrids obtained by crossbreeding of Polish Holstein Friesian (PHF) cows and Swedish Red (SRB) bulls with values obtained for pure PHF cows. For the study, 100 primiparous cows were selected and divided into two groups. The experimental group consisted of 50 crossbreds (PHF×SRB), while the control group consisted of 50 purebred PHF cows. The study showed a higher content of milk components (fat by 11.78 %, protein by 9.06 %, dry matter by 5.75 %) in PHF×SRB, as compared to PHF. A lower level of SCC (by 38.94 %) has also been shown in hybrids, which indicates their higher resistance to udder diseases. The experiment demonstrated a highly significant impact of heterosis on performance parameters and technological quality of milk in F1 generation obtained as a result of crossbreeding between PHF cows and SRB bulls.

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来源期刊

Mljekarstvo Agricultural and Biological Sciences-Animal Science and Zoology

CiteScore

1.90

自引率

41.70%

发文量

审稿时长

12 weeks

期刊介绍： Mljekarstvo is an open access, peer-reviewed international quarterly scientific journal. The first issue was published in 1951, by the Croatian Dairy Operators'' Association (today: Croatian Dairy Union, publisher). In a paper at a Union conference held 28 October 1951 in Zagreb it was said: "Our desire is that this magazine does not meet the fate of its predecessors, but that it continues to reflect the creative efforts and to provide guidelines for the producers as well as all other operators employed in the dairy industry." It is our pleasure today to say that wishes of the enthusiasts who attended the conference have come true, and the magazine Mljekarstvo during the last six decades was a reflection of the creative efforts of numerous dairy scientists and experts, and through its texts it served as a guideline in improving production and processing of milk and dairy products. Mljekarstvo has been following all the achievements of the dairy profession in Croatia, and it also gives the short surveys of world achievements. The result of the research of local and foreign scientists and experts always find their place in the magazine Mljekarstvo. It has been edited by our outstanding dairy experts employed at colleges, research institutions and dairy companies.