Effects of parity and days in milk on milk composition in correlation with β-hydroxybutyrate in tropic dairy cows
| العنوان: | Effects of parity and days in milk on milk composition in correlation with β-hydroxybutyrate in tropic dairy cows |
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| المؤلفون: | Yabing Ma, Junqing Ni, Eman Elgazzar, Shujun Zhang, Ahmed Sabek, Chao Du, Abdelfattah Z.M. Salem, Liangkang Nan, Chunfang Li |
| المصدر: | Tropical Animal Health and Production. 53 |
| بيانات النشر: | Springer Science and Business Media LLC, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | China, 3-Hydroxybutyric Acid, food and beverages, Biology, Herd health, Milk production, Milking, Correlation, Parity, Milk, fluids and secretions, Animal science, medicine.anatomical_structure, Food Animals, Pregnancy, medicine, Animals, Lactation, Cattle, Female, Animal Science and Zoology, Composition (visual arts), Udder, Parity (mathematics), Somatic cell count |
| الوصف: | The current study was conducted to evaluate the effect of parity and days in milk on milk yield and milk production traits and their correlation with β-hydroxybutyrate (BHB) concentrations in milk of Chinese tropic Holstein dairy cows which are adapted to a humid subtropical climate in central China. About 3055 milking records of Holstein cows were obtained from three farms in the hot region in the center of China. The records were classified according to parity to 4 categories: first parity, second parity, third parity, and greater than third parity. According to days in milk, there were 4 groups, first group from (1-100 days), second group from (101-200 days), third group from (201-305 days), and fourth group (>305 days). Milk samples collected between April and November 2019 from the three farms were routinely checked for milk components including BHB using mid-infrared spectroscopy a MilkoScan FT+ (Foss, Hillerod, Denmark). Data were analyzed by multivariate analysis of variance (generalized linear model, GLM). Pearson's correlation coefficients were used to measure the correlation between SCC and BHB with milk yield and milk production traits. Results showed the significant effect of parity and days in milk on milk yield and milk production traits. There was a negative effect of parity and days in milk on milk quality, with increasing parity and days in milk being associated with higher somatic cell count (SCC) (P |
| تدمد: | 1573-7438 0049-4747 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6489aa68fe564b0243c10c5c19c2ad50 https://doi.org/10.1007/s11250-021-02690-7 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi.dedup.....6489aa68fe564b0243c10c5c19c2ad50 |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 15737438 00494747 |
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