Abstract
THE purpose of the experiments was to examine the possibility that certain laboratory characteristics of cock semen could be used to predict its fertilizing capacity. Shaffner and Andrews (1948) found that fertility in the chicken was significantly correlated with initial motility, methylene blue reduction time and survival time at 4°C.; the correlations between fertility and volume of ejaculate and density were not significant. McCartney (1956), working with the turkey and measuring initial motility, initial pH, density and volume of ejaculate, found no significant correlations with fertility.EXPERIMENTAL METHODSThe following qualities were measured in the laboratory: initial motility (rated from 0 to 4), initial pH, sperm density (duplicate counts on a haemocytometer), percentage of dead sperm (nigrosin-eosin staining technique with duplicate slides and duplicate counts of 100 on each slide) and time taken to reduce resazurin to the pink and white end points. Fertility estimates from each sample were obtained …
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
