F
F.N. Dickinson
Researcher at United States Department of Agriculture
Publications - 32
Citations - 645
F.N. Dickinson is an academic researcher from United States Department of Agriculture. The author has contributed to research in topics: Sire & Brown Swiss. The author has an hindex of 16, co-authored 32 publications receiving 630 citations. Previous affiliations of F.N. Dickinson include University of Massachusetts Amherst.
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Journal ArticleDOI
Genetic aspects of lactation curves.
TL;DR: Genetic and phenotypic correlations indicated that selection for increased peak yield would be associated with increased ln(a), b, and c without changing persistency or week of peak yield.
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Phenotypic Trends in Herdlife of Dairy Cows in the United States
TL;DR: In this article, the authors studied the herdlife through the eighth parity of dairy cows in the United States with lactation records from 87,756 Ayrshires, 108,733 Brown Swiss, 331,497 Guernseys, 294,195 Holsteins and 421,911 Jerseys that first calved after 1965.
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Trends in Breeding Value and Production
TL;DR: The annual changes in management and genetics showed that in recent years more improvement was due to genetics, and breeding is expected to continue to increase in importance for improved yields.
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Comparative Efficiency of Feed Utilization During First Lactation of Ayrshire, Brown Swiss, and Holstein Cows
TL;DR: First-lactation data on 57 Ayrshire, 68 Brown Swiss, and 57 Holstein cows, milked contemporarily in the Beltsville herd between 1958 and 1966, were studied to estimate inter-breed differences in feed efficiency and intra-Breed relations of feed efficiency to body size, weight, and weight gain.
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Sire Differences in Sex Ratio of Progeny
TL;DR: Heritability estimates near zero indicated that additive genetic variance is small or zero, and the possibility that such tests may be inapplicable to the detection of rare bulls with real differences in sex ratio of progeny is discussed.