母牛安静发情的特征及原因分析

doi:10.11843/j.issn.0366-6964.2024.11.003

Abstract

Abstract:

Estrus identification is an important link in cow breeding management.Timely and accurate identification of estrus cows has important significance to improve reproduction performance.However, silent estrus cows can't be identified by using pedometer or smart collar, which has become the main limiter of further improving reproductive efficiency.To this end, this paper reviews the characteristics of silent estrus cows, and analyzes the involving inducements and regulation mechanisms in previous studies.Analysis indicates that booming growth of internet of things, electromechanical, and sensing technologies provide facilities for revealing mechanism and laws of physiological and behavioral indices in estrus cows.A revelation of these mechanism and regularities will be helpful to promote the development of highly effective and accurate automated estrus identification technology, which will break through the bottleneck of silent estrus identification technology.

Key words: cows, estrus identification, silent estrus, feature analysis, cause analysis

CLC Number:

S823.3

Shuhan YANG, Lijin SHA, Yunwei PANG, Haoyu XIU, Chao WANG, Yuheng WANG, Xinfeng HE, Kaimin YUAN, Yongqiang LU, Dong WANG. Characteristics and Causes Analysis of Silent Estrus in Cows[J]. Acta Veterinaria et Zootechnica Sinica, 2024, 55(11): 4808-4818.

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Characteristics and Causes Analysis of Silent Estrus in Cows

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