2019年呼伦贝尔地区奶牛产奶量及质量指标不同月份变化分析

doi:10.12160/j.issn.1672-5190.2021.01.012

Abstract

Abstract: The purpose of this study was to characterize the inter-monthly variation of milk composition, somatic cell count and total bacterial count in Holstein dairy cows in Hulun Buir region of Inner Mongolia. A total of 14 354 batches of samples were collected from January to December in year 2019 and used to assess the variations of milk yield, composition, somatic cell count and total bacterial count in different months. The results showed that the milk yield of Holstein dairy cows in Hulun Buir region had an obvious inter-monthly difference; the highest milk yield was observed from April to May; the lowest milk yield was observed from November to February of the following year, and protective measures against the cold stress were recommended in this duration; higher level of milk somatic cell count was observed from January to March, accordingly, the feeding management of dairy cows was expected to be strengthened, and the prevention and control measures against mastitis was supposed to be taken; milk composition and total bacterial count hardly varied among different months.

Key words: Hulun Buir region, months, milk yields, milk composition, somatic cell count, total bacterial count

CLC Number:

GUO Chen-yang, WANG Li-fang, SONG Jie. Analysis on Inter-monthly Variation of Milk Yields and Quality Indicators of Dairy Cows in Hulun Buir Region in Year 2019[J]. Animal Husbandry and Feed Science, 2021, 42(1): 60-62.

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Analysis on Inter-monthly Variation of Milk Yields and Quality Indicators of Dairy Cows in Hulun Buir Region in Year 2019

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