相似环境条件下荷斯坦奶牛和西门塔尔奶牛不同泌乳期主要乳品质参数的比较评价

IF 0.4 4区农林科学 Q4 VETERINARY SCIENCES

Medycyna Weterynaryjna-Veterinary Medicine-Science and Practice Pub Date : 2023-01-01 DOI:10.21521/mw.6779

U. Kaya, H. Özkan, M. Yazlık, B. Camdeviren, Güven Güngör, I. Karaaslan, S. Dalkiran, Hasan Hüseyin Keçeli̇, A. Akçay, A. Yakan

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引用次数: 0

摘要

本试验旨在评价相同环境条件下，西门塔尔奶牛和荷斯坦奶牛不同泌乳期乳汁的组成及品质参数。本研究选取不同哺乳期的多产荷斯坦奶牛和西门塔尔奶牛210头。对收集的牛奶样品进行MDA、SCC、成分和脂肪酸分析。为了确定品种、泌乳期及其相互作用的影响，对这些参数采用线性混合模型。在品种中，只有乳脂和pH值作为组成参数具有统计学意义。C15:0和C17:1 n8在品种因素上有统计学意义，C18:2 n6 trans仅在哺乳期因素上有统计学意义。此外，还确定了C4:0、C6:0、C8:0、C10:0、C11:0、C12:0、C13:0、C16:0、C18:1 n9、C20:0和C22:6 n3脂肪酸在相互作用方面具有统计学意义。脂肪酸指标中，SCFA、MCFA、n3和n6/n3的相互作用均具有统计学意义，SFA、MUFA、UFA和AI的相互作用均具有统计学意义。另一方面，需要在分子水平上进一步研究这些品种在奶品质和脂肪酸合成方面的差异。

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Comparative evaluation of major milk quality parameters of Holstein and Simmental cows at different lactation stages under similar environmental conditions

e aim of this study was to evaluate the composition and quality parameters of Simmental and Holstein cows’ milk with different lactation stages under the same environmental conditions. Multiparous Holstein and Simmental cows from different lactation stages (n = 210) were included in the present study. MDA, SCC, composition, and fatty acid analyzes were performed from the collected milk samples. To determine the effect of breed, lactation stage and their interactions, linear mixed models were applied to these parameters. Among the breeds, only milk fat and pH were determined statistically significant as composition parameters. While C15:0 and C17:1 n8 were observed to be statistically significant for the breed factor, C18:2 n6 trans were statistically significant only for the lactation stage factor. Moreover, the fatty acids of C4:0, C6:0, C8:0, C10:0, C11:0, C12:0, C13:0, C16:0, C18:1 n9, C20:0 and C22:6 n3 were determined to be statistically significant in terms of interactions. For the fatty acid indices, SCFA, MCFA, n3 and n6/n3 were statistically significant in terms of interactions while SFA, MUFA, UFA and AI were statistically significant in terms of breeds. On the other hand, new studies are needed to investigate the differences between these breeds at the molecular level for milk quality and fatty acid synthesis.

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来源期刊

Medycyna Weterynaryjna-Veterinary Medicine-Science and Practice VETERINARY SCIENCES-

CiteScore

0.80

自引率

0.00%

发文量

审稿时长

4-8 weeks

期刊介绍： "Medycyna Weterynaryjna" publishes various types of articles which are grouped in the following editorial categories: reviews, original studies, scientific and professional problems, the history of veterinary medicine, posthumous memoirs, as well as chronicles that briefly relate scientific advances and developments in the veterinary profession and medicine. The most important are the first two categories, which are published with short summaries in English. Moreover, from 2001 the editors of "Medycyna Weterynaryjna", bearing in mind market demands, has also started publishing entire works in English. Since 2008 the periodical has appeared in an electronic version. The following are available in this version: summaries of studies published from 1999 to 2005, full versions of all the studies published in the years 2006-2011 (in pdf files), and full versions of the English studies published in the current year (pdf). Only summaries of the remaining studies from the current year are available. In accordance with the principles accepted by the editors, the full versions of these texts will not be made available until next year. All articles are evaluated twice by leading Polish scientists and professionals before they are considered for publication. For years now "Medycyna Weterynaryjna" has maintained a high standard thanks to this system. The review articles are actually succinct monographs dealing with specific scientific and professional problems that are based on the most recent findings. Original works have a particular value, since they present research carried out in Polish and international scientific centers.