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    Milk production and lamb growth in Dorset, Corriedale, and Romney sheep and carcass growth and development in lambs of the three breeds and crosses among them

    Geenty, K. G.
    Abstract
    The supply of milk to young lambs determines whether they survive and grow satisfactorily (Moule, 1954; Wallace, 1948a; Marnicoat, 1949a). Therefore the potential of the ewe to produce milk is important in the evaluation of breeds for selection and crossbreeding programmes, particularly where these programmes are aimed at increasing fecundity. This is particularly relevant with the recent importation of highly fecund sheep such as the Finnish Landrace. Since the objectives of increasing fecundity are presently being met, larger number of surplus male lambs will become available from breeding flocks for the export market in the future. Several breeds and crosses have been evaluated for this market but to keep abreast with changed which might occur, new and less popular breeds, particularly those with potential use in crossbreeding programmes, should also be evaluated. The objectives of the present experiments were to measure the lactation yields of 3 parent breeds and to study the compositional growth and development of their pure and crossbred progeny until they were weaned.... [Show full abstract]
    Keywords
    Dorset sheep; Corriedale sheep; Romney sheep; milk production; lamb growth; lactation; crossbreeding
    Fields of Research
    070202 Animal Growth and Development; 070201 Animal Breeding
    Date
    1974
    Type
    Thesis
    Access Rights
    Digital thesis can be viewed by current staff and students of Lincoln University only. If you are the author of this item, please contact us if you wish to discuss making the full text publicly available.
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