返情母牛活动量影响因素分析

doi:10.11843/j.issn.0366-6964.2019.07.009

摘要/Abstract

摘要： 旨在探究季节、胎次及返情时间对配种母牛活动量的影响，提高计步器对返情牛的检出率。本研究使用计步器监测了214头配种经产母牛的活动量变化及返情情况，并通过直肠检查对返情牛进行确认，对返情牛返情前、返情期活动量进行统计分析。统计分析发现，母牛配种后第一、二、三及四情期返情比例分别为48.7%、29.9%、16.2%、5.1%；配种母牛返情前、返情期活动量均随胎次增加、返情时间后移整体呈下降趋势，返情期持续时间也随妊娠期延长而逐渐降低，且返情期活动量在夏季显著降低（P<0.05）。配种后第一、二情期是母牛养殖的重点，除综合考虑胎次、返情时间及季节等因素对活动量的影响外，阈值设定时还应特别注意返情期持续时间，以便科学地利用活动量参数进行母牛返情自动监测。

Abstract: In order to improve the detection rate of returning estrous cows via pedometer, the effects of season, parity and time of returning estrus on activity of breeding cows were investigated. The returning estrus situation and activity change of 214 multiparous cows after artificial insemination were monitored by using pedometer, and the returning estrous cows were confirmed by rectal examination. Afterwards, the activity before and during returning estrus of returning estrous cows were statistically analyzed. Statistical analysis result showed that the proportion of returning estrous cows in the first, second, third and fourth estrous cycle after artificial insemination was 48.7%, 29.9%, 16.2%, 5.1%, respectively. The activity before and during returning estrus showed a downtrend with the increase of parity and time of returning estrus as a whole. Simultaneously, the duration of returning estrus also gradually decreased with the prolongation of pregnancy, and the activity of cows during returning estrus was significantly decreased in summer (P<0.05). Cow's reproduction should be paid more attention during the first and second estrous cycle after artificial insemination. In addition to parity, seasons and time of returning estrus must be considered comprehensively, the duration of returning estrus should also be paid special attention when the threshold is set, so that the automatic monitoring of returning estrous cows can be carried out scientifically by using activity parameter.

中图分类号:

S823.3

刘江静, 陈晓丽, 田宏志, 路永强, 王栋. 返情母牛活动量影响因素分析[J]. 畜牧兽医学报, 2019, 50(7): 1405-1411.

LIU Jiangjing, CHEN Xiaoli, TIAN Hongzhi, LU Yongqiang, WANG Dong. Analysis on the Influencing Factors on Activity of Returning Estrous Cows[J]. ACTA VETERINARIA ET ZOOTECHNICA SINICA, 2019, 50(7): 1405-1411.

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