Graduate Thesis Or Dissertation

 

Reproductive performance of broiler breeders maintained in cages or on floors through 59 weeks of age Public Deposited

Downloadable Content

Download PDF
https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/4f16c555g

Descriptions

Attribute NameValues
Creator
Abstract
  • Semen characteristics and egg production of male and female commercial broiler breeders maintained in cages or on litter floors were evaluated over a 24-week period. Semen was collected from males caged singly or in pairs on a schedule of 3, 5, and 10 times (3X, 5X, and 10X) weekly from 36 through 59 weeks of age. Semen volume and concentration were determined once weekly for each male. Fertility and hatchability data of semen from males of the various treatment groups were obtained at 4 week intervals. Body weights and leg and foot problems were recorded at 28 day intervals and mortalities noted. No significant differences in semen volume, sperm concentration, percent fertility and percent hatchability were found between males ejaculated 3X and 5X weekly, or between males caged individually or as pairs. Total sperm per ejaculate was highest in birds ejaculated 5X weekly. Males ejaculated 10X weekly showed excessive cumulative mortality. The data suggest that although frequent semen collection (10X weekly) is feasible for up to 15 consecutive weeks, intensive use of males may not be practical for a longer period of time. Broiler breeders, 36 through 59 weeks of age, were maintained on litter floors in groups based on male:female ratios of 1:25, 2:25, and 3:25 in individual pens. Fertility and hatchability data were obtained at 4 week intervals from hatching eggs produced by natural mating. Percent egg production, mortality and female body weights at 28 day intervals were recorded. Percent fertility and hatchability were not significantly different among male:female ratios of 1:25, 2:25, and 3:25.
Resource Type
Date Available
Date Copyright
Date Issued
Degree Level
Degree Name
Degree Field
Degree Grantor
Commencement Year
Advisor
Academic Affiliation
Non-Academic Affiliation
Subject
Rights Statement
Peer Reviewed
Language
Digitization Specifications
  • File scanned at 300 ppi (Monochrome) using Capture Perfect 3.0.82 on a Canon DR-9080C in PDF format. CVista PdfCompressor 4.0 was used for pdf compression and textual OCR.
Replaces
Additional Information
  • description.provenance : Submitted by Sergio Trujillo (jstscanner@gmail.com) on 2013-09-24T22:11:10Z No. of bitstreams: 1 FuquayJaniceIrene1980.pdf: 181892 bytes, checksum: 64a04dbec124a460fdd4084ef8210a4a (MD5)
  • description.provenance : Made available in DSpace on 2013-09-26T20:15:21Z (GMT). No. of bitstreams: 1 FuquayJaniceIrene1980.pdf: 181892 bytes, checksum: 64a04dbec124a460fdd4084ef8210a4a (MD5) Previous issue date: 1979-08-01
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2013-09-26T20:13:05Z (GMT) No. of bitstreams: 1 FuquayJaniceIrene1980.pdf: 181892 bytes, checksum: 64a04dbec124a460fdd4084ef8210a4a (MD5)
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2013-09-26T20:15:21Z (GMT) No. of bitstreams: 1 FuquayJaniceIrene1980.pdf: 181892 bytes, checksum: 64a04dbec124a460fdd4084ef8210a4a (MD5)

Relationships

Parents:

This work has no parents.

In Collection:

Items