Abstract
The major factors affecting hatchability have been reviewed by Jull (1928), where it was observed that “it may be concluded fairly definitely that the problem of improving hatchability is largely a problem of breeding . .” In the light of this observation a study of the effects on hatchability of varying degrees of consanguinity of the breeding stock should be of considerable value.The effects on hatchability of inbreeding and outbreeding have been determined by only a few workers but so far as the writer is aware no attempts have been made to compare hatchability results from full-brother-and-sister and half-brother-and-sister matings.Cole and Halpin (1916, 1922) imbred Rhode Island Red brothers and sisters for four years and observed a marked decline in vigor to such an extent that in the fourth year hatchability was so low that the experiment had to be discontinued. The basis of selecting the .
Sign-in/Register to access full text options 
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 callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
