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FUTURE DEVELOPMENTS IN THE NATIONAL DAIRY HERD
Author(s) -
FULLBROOK F. J.
Publication year - 1977
Publication title -
international journal of dairy technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.061
H-Index - 53
eISSN - 1471-0307
pISSN - 1364-727X
DOI - 10.1111/j.1471-0307.1977.tb01178.x
Subject(s) - breed , butterfat , herd , profitability index , agricultural science , zoology , microbiology and biotechnology , biology , milk fat , business , food science , finance , linseed oil
The current breed composition of the national dairy herd and the changes that have taken place in recent years are discussed. Changes in breed average yields and butterfat percentage over the last 10 years are presented and an effort made to foresee future breed changes by the percentage of each breed that was currently bred pure. An attempt is made to compare the profitability of the various breeds. Breed improvement schemes are described and the possibility of future breed substitution discussed particularly in relation to the position of Holsteins.