Genotype × Environment Interactions in Horn Fly (Diptera:Muscidae) Resistance in Angus, Brahman, and F1 Reciprocal Crossbred Cows on Common Bermudagrass or Endophyte-Infected Tail Fescue1
Autor: | W.G. Jackson, C. D. Steelman, Zelpha B. Johnson, M. A. Brown, W.R. Getz, G. Tolley |
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Rok vydání: | 1993 |
Předmět: | |
Zdroj: | The Professional Animal Scientist. 9:178-182 |
ISSN: | 1080-7446 |
Popis: | Weekly horn fly (Diptera:Muscidae) counts were recorded on 125 Angus, Brahman, and F1 reciprocal crossbred heifers grazing endophyte-infected tall fescue or common bermudagrass during the fly seasons in 1990 and 1991. Direct heterosis, maternal breed, and direct breed effects for average fly infestation were estimated as linear contrasts among sire breed × dam breed least squares means in these heifers. Heterosis differed between forages (P |
Databáze: | OpenAIRE |
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