CGSpaceA Repository of Agricultural Research Outputs
    View Item 
    •   CGSpace Home
    • International Livestock Research Institute (ILRI)
    • ILRI archive
    • View Item
       
    • CGSpace Home
    • International Livestock Research Institute (ILRI)
    • ILRI archive
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Factors affecting the reproductive performance of Boran (Bos indicus) cows in a single-sire mating system

    Thumbnail
    
    Authors
    Tegegne, Azage
    Entwistle, K.W.
    Mukasa-Mugerwa, E.
    Date
    1993
    Language
    en
    Type
    Journal Article
    Accessibility
    Limited Access
    Metadata
    Show full item record
    Share
    Citation
    Tropical Agriculture;70(2): 174-178
    Permanent link to cite or share this item: http://hdl.handle.net/10568/29692
    Abstract/Description
    A total of 179 heifers, primiparous and multiparous Boran cows were assigned to four breeding units and mated over a 4 - month breeidng season in a single-sire mating system. Mean body weight and body condition scores at the beginning of mating ranged from 363 + 6 kg to 388 + 7 kg and from 6.7 + 0.1 to 7.0 + 0.1 in the four breeding units, respectively. Body weight losses in cows in the four breeding units ranged from 8 to 35kg over the mating period, losses being higher in lactating cows (44 kg) than in non-lactating cows (6 kg). Pregnancy rates ranged from 81 to 94 percent in the four breeding units and were not influenced by lactation status. First calf heifers had the lowest pregnancy rate with a tendency for increasing pregnancy rates with parity in multiparous cows. Lactating cows calved later (P<0.05) than did non-lactating cows, and heifers calved later (P<0.05) than cows. A smaller percentage of heifers (43 percent) than multiparous cows (64 percent) calved during the first two calving months. There was no significant correlation between body weight, weight changes, or calf growth performances, and pregnancy rate and calving patterns.
    AGROVOC Keywords
    ZEBU CATTLE; REPRODUCTIVE PERFORMANCE; COWS; MATING SYSTEMS; HEIFERS; PUERPERIUM; WEIGHT; AGE; LIVESTOCK MANAGEMENT; BORAN CATTLE
    Subjects
    PASTORALISM;
    Livestock breed types
    ETHIOPIAN BORAN
    Collections
    • ILRI articles in journals [4825]
    • ILRI archive [4979]
    • DAGRIS [855]

    AboutSend Feedback
     

    My Account

    LoginRegister

    Browse

    All of CGSpaceCommunities & CollectionsBy Issue DateAuthorsTitlesBy AGROVOC keywordBy ILRI subjectBy CPWF subjectBy CCAFS subjectBy CIFOR subjectBy IWMI subjectBy RegionBy CountryBy SubregionBy CRP subjectBy River basinBy Output typeBy CTA subjectBy WLE subjectBy Bioversity subjectBy CIAT subjectBy CIP subjectBy animal breedBy CGIAR System subjectThis CollectionBy Issue DateAuthorsTitlesBy AGROVOC keywordBy ILRI subjectBy CPWF subjectBy CCAFS subjectBy CIFOR subjectBy IWMI subjectBy RegionBy CountryBy SubregionBy CRP subjectBy River basinBy Output typeBy CTA subjectBy WLE subjectBy Bioversity subjectBy CIAT subjectBy CIP subjectBy animal breedBy CGIAR System subject

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    AboutSend Feedback