Effect of photoperiod and other environmental factors on the oocyte populations of water buffalo (Bubalus bubalis) in Veracruz state, Mexico

Author:

Avalos-Rosario Ivan

Abstract

The objective of this study was to investigate the effect of photoperiod and other environmental factors on the population of Water buffalo oocytes in Veracruz, Mexico. Oocytes (n=123) were obtained by follicular aspiration and graded according to morphological characteristics. Data regarding regional environmental factors (temperature, humidity, and daylight) were collected from a historic database of a metrological station. Statistical analysis was performed through Person correlation, one-way ANOVA and linear regression analysis, P<0.05 was considered significant. There was a correlation (P<0.05) between oocyte populations (total and viable) with temperature, humidity, and duration of daylight. ITH (index of temperature and humidity) and oocyte viability did not correlate (P>0.05) with other variables. Oocyte populations (total and viable) and environmental variables changed (P<0.05) during all the sampled months. Oocyte populations (total and viable) were affected (P<0.05) by temperature (r=-0.63; r=-0.57), humidity (r=0.46; r=0.39) and daylight (r=-0.86; r=-0.87), no association (P>0.05) with ITH or oocyte viability were identified. In conclusion, temperature, humidity, and daylight affected the oocyte populations (total and viable). Photoperiod seemed to be the most important factor affecting oocyte populations of water buffalos in Veracruz state, Mexico.

Publisher

Office of the Library, Kasetsart University

Subject

General Veterinary,Animal Science and Zoology

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3