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Relationships between the results of hypo-osmotic swelling tests, sperm motility, and fertility in Estonian Holstein dairy bulls
bull fertility semen quality sperm membrane intactness
2015/6/23
However, the HOS-2 and HOS-3 values in FT semen
had high correlations with NRR (r = 0.65, r = 0.66, P < 0.001 at batch level and r = 0.63, r = 0.71, P < 0.01
at bull level), which was comparable t...
Effect of Carbohydrate Sources and Levels of Cotton Seed Meal in Concentrate on Feed Intake, Nutrient Digestibility, Rumen Fermentation and Microbial Protein Synthesis in Young Dairy Bulls
Carbohydrate Source Cotton Seed Meal Rumen Fermentation Microbial Population Young Dairy Bull
2016/5/11
The objective of this study was to investigate the effect of levels of cottonseed meal with various carbohydrate sources in concentrate on feed intake, nutrient digestibility, rumen fermentation and m...
A possible decline in sperm counts in men and its potential relation to exposure to environmental contaminants are subjects of a broad discussion. Whereas data for human research in this area are ...
Proteins of the Cauda Epididymal Fluid Associated With Fertility of Mature Dairy Bulls
-L-fucosidase cathepsin D epididymis mass spectrometry prostaglandin D-synthase sperm
2008/12/24
We evaluated the relationships between proteins in cauda epididymis fluid (CEF) and fertility scores of dairy bulls. Fertility was expressed as the percentage point deviation (PD) of bull nonretu...
Identification of Proteins in the Accessory Sex Gland Fluid Associated With Fertility Indexes of Dairy Bulls：A Proteomic Approach
BSP 30 kDa osteopontin phospholipase A2 seminal plasma spermadhesin
2008/12/23
We evaluated the expression of proteins in the accessory sex gland fluid (AGF) and their relationships with fertility indexes of dairy bulls. Fertility was normalized as the percentage point deviation...
Relationship Between Sperm Viability as Determined by Flow Cytometry and Nonreturn Rate of Dairy Bulls
Spermatozoa quality insemination fertility precision accuracy
2008/12/23
A newly developed flow cytometric method for determination of sperm concentration and viability was tested in an insemination trial with cryopreserved bull sperm to establish the relationship betwee...
The objective of these trials was to measure the visual acuity of adult dairy bulls using a psychophysical approach. Three adult dairy bulls (2 Holstein Friesian and 1 Red Holstein) were trained to re...
Effects of replacing different proportions of barley grain by barley fibre on performance of dairy bulls
Beef production dairy-breed bulls total mixed ration barley fibre by-productsa
2010/8/9
The objective of the present experiment was to study the effects of partial replacement of barley grain with barley fibre (BF) on animal performance, carcass traits and diet digestibility of growing d...