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Seasonal changes in semen quality and correlation with plasma hormone profiles in Karan Fries bulls.

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Title Seasonal changes in semen quality and correlation with plasma hormone profiles in Karan Fries bulls.
Not Available
 
Creator Mallick S, Aggarwal A and Prakash B.S
 
Subject Season, hormone, semen, bull
 
Description Not Available
The aim of the study was to assess the influence of summer and winter seasons on semen quality and plasma hormone concentrations in cross-bred bulls. Semen was collected by an artificial vagina from eight bulls and microscopically evaluated for quality parameters. Semen volume was higher in summer season (p < 0.05) than winter season, whereas nonsignificant variation (p > 0.05) was observed in mass motility, individual motility, sperm viability, sperm concentration and percentage of membrane-intact and acrosome-intact spermatozoa. Plasma prolactin and testosterone concentration were significantly (p < 0.01) higher in summer season than winter season. Plasma testosterone levels were positively correlated with semen volume and negatively correlated with individual motility (p < 0.05). Prolactin showed a significant positive correlation with semen volume. A well-defined seasonal pattern in semen characteristics was not observed and few correlations existed between plasma hormone levels and semen characteristics in Karan Fries bulls.
Not Available
 
Date 2018-09-28T08:43:26Z
2018-09-28T08:43:26Z
2016-12-31
 
Type Article
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/7345
 
Language English
 
Relation Not Available;
 
Publisher Taylor & Francis Online