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Effects of environmental factors, age and genotype on sperm production and semen quality in Bos indicus and Bos taurus AI bulls in Brazil
(Elsevier B.V., 2002-04-15)
The effects of ambient temperature and humidity, month, age and genotype on sperm production and semen quality in AI bulls in Brazil were evaluated. Data from two consecutive years were analyzed separately. Seven Bos indicus ...
Effects of environmental factors, age and genotype on sperm production and semen quality in Bos indicus and Bos taurus AI bulls in Brazil
(Elsevier B.V., 2002-04-15)
The effects of ambient temperature and humidity, month, age and genotype on sperm production and semen quality in AI bulls in Brazil were evaluated. Data from two consecutive years were analyzed separately. Seven Bos indicus ...
Effect of manganese supplementation on the membrane integrity and the mitochondrial potential of the sperm of grazing Nelore bulls
(Elsevier B.V., 2014-11-10)
The effect of dietary manganese (Mn2+) supplementation on the reproductive performance of Nelore bulls was evaluated by assessment of sperm membrane integrity. Sixty Nelore bulls (Bos taurus indicus) aged 18-20 mo were ...
Exploratory analysis of differences in sperm morphology in Nelore and Gir (Bos indicus) bulls
(Springer, 2014-06-01)
The aim of this study was to evaluate the effects of breed and season on semen quality parameters of zebu bulls. Data (1,632 registers) of semen production from Gir (n = 4) and Nelore (n = 15) bulls were collected between ...
A comparative analysis of sperm selection procedures prior to cryopreservation on Nili-Ravi buffalo bull (Bubalus bubalis) semen. Assessment of its impact on post-thaw sperm functional quality
(Elsevier, 2016-11)
Sperm selection techniques have been developed to get sperm suspensions enriched in motile and functional cells. Studies show that selection before cryopreservation improves post-thaw quality of cryopreserved sperm but ...
Effect of inbreeding depression on bull sperm quality and field fertility
(Csiro Publishing, 2017-03)
The present study investigated the effect of inbreeding depression on sperm quality using automated and objective methods and subsequent effects on beef bull field fertility. Individual inbreeding coefficient (F) values ...
Fertility-associated proteins in Nelore bull sperm membranes
(Elsevier B.V., 2006-01-01)
The present study was undertaken to evaluate the protein composition of the sperm membranes (SM) of Nelore bulls, assessing protein markers associated with bull fertility, and whether these markers can be used for predicting ...
Fertility-associated proteins in Nelore bull sperm membranes
(Elsevier B.V., 2006-01-01)
The present study was undertaken to evaluate the protein composition of the sperm membranes (SM) of Nelore bulls, assessing protein markers associated with bull fertility, and whether these markers can be used for predicting ...