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    A comparison of export lamb sire breeds

    Craig, R. L.
    Abstract
    A comparison of export lamb sire breeds was conducted on three properties in the Canterbury area. The purpose of this trial was to identify significant differences between, and to rank the following breeds: Coopworth, Romney, Southdown, Dorset Down, Suffolk and Poll Dorset. The traits considered were: weaning weight, birth weight, lamb survival rate and lamb productivity. Lamb productivity is defined as weight of lamb weaned per lamb born. Investigations were also conducted into the existence of sire variation within breeds and environmental effects on the former two traits. This trial was part of a larger project in which the main aim was to identify carcase quality differences between the six breeds.... [Show full abstract]
    Keywords
    sheep; breeding; weaning weight; crossbreeding
    Fields of Research
    070201 Animal Breeding
    Date
    1980
    Type
    Thesis
    Access Rights
    Digital thesis can be viewed by current staff and students of Lincoln University only. Print copy available for reading in Lincoln University Library.
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    • Theses and Dissertations with Restricted Access [2364]
    • Department of Agricultural Sciences [1568]
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