Qualitative indicators of milk of Simmental and Holstein cows in different seasons of lactation.

Content Provider	Europe PMC
Author	Khastayeva, Aigerim Zhanuzakovna Zhamurova, Venera Serikbayevna Mamayeva, Laura Asilbekovna Kozhabergenov, Akylzhan Turalievish Karimov, Nurlybek Zhanybekovich Muratbekova, Karlygash Muratbekkyzy
Copyright Year	2021
Abstract	Background and Aim:Milk producers need to ensure that their cows are producing high-quality, nutritional milk, which is influenced by the breed, age, nutrition, and health status of lactating animals. The aim of this study was to determine the effect of animal breed, season, and milk production on the physicochemical characteristics of milk and predicting the effect of these changes on the composition and quality of milk products.Materials and Methods:In total, 80 milk samples (40 Simmental and 40 Holstein) were analyzed from LLP “Kirova” of Pavlodar region (Simmental breed) and JSC “Astana-Onim” of Akmola region (Holstein breed) in the Republic of Kazakhstan. The physicochemical parameters, including fatty acid (FA) content, were studied.Results:The Simmental cows had the lowest mass fraction of fat in the spring at 3.94% and the highest fat content in the winter at 4.09%, which was the overall highest fat content measured in both breeds (p<0.001). The lowest protein in the Simmentals was also measured in the spring. The Holstein cows had the highest fat content at 3.8% and the highest protein content at 3.3% in autumn.Conclusion:It was found that the season and breed significantly affected the physicochemical parameters and the FA contents in cow milk. The superiority of the Simmental cows over the Holstein cows throughout the year was statistically significant.
ISSN	09728988
Journal	Veterinary World
Volume Number	14
PubMed Central reference number	PMC8167536
Issue Number	4
PubMed reference number	34083946
e-ISSN	22310916
DOI	10.14202/vetworld.2021.956-963
Language	English
Publisher	Veterinary World
Publisher Date	2021-04-21
Publisher Place	India
Access Restriction	Open
Rights License	Open Access. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated. Copyright: © Khastayeva, et al.
Subject Keyword	cow’s milk fatty acid composition Holstein season Simmental breed
Content Type	Text
Resource Type	Article
Subject	Veterinary