Relationship between daily milk yield and persistency of hungarian holstein friesian through selection index and sub-indices

Reproduction in Domestic Animals

Volumn 32, Issue 4, 1997, Pages 207-212

  Amin, A A ^a   Toth S ^a   Gere, T ^a  

^a Gödöllo University   (Hungary)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 67651088785     PISSN: 09366768     EISSN: 14390531     Source Type: Journal    
DOI: 10.1111/j.1439-0531.1997.tb01283.x     Document Type: Article

References (13)

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2. Amin AA, Tóth S, Gere T, 1996b: Full multi-traits, reduced and restricted selection indices for improvement of milk yield composition involving relationships with productive and reproductive periods. Allattenyesztes es Takarmanyozas, 49, 305-317.
3. Boldman KG, Kriese LA, Van Vleck LD, Van Tassell CP, Kachman SD, 1995: A Manual for Use of MTDFREML. A set of programs to obtain estimates of variances and covariances. US Department of Agric, Agric Res Service.
4. Hazel LN, 1943: The genetic basis for constructing selection indexes. Genetic 28, 476-490.
5. Henderson CR, 1963: Selection index and expected genetic advance. In: Statistical Genetic and Plant Breeding. PP: 141, NAS-NRC Publication.
6. Jadhav KL, Tripathi VN, Kale MM, 1991: Lifetime performance of various Holstein Sahiwal grades. Ind. J. of Dairy Sci. 44, 204-208.
7. Khattab AS, Sultan ZA, 1991: A comparison of different selection indices for genetic improvement of some dairy traits in Friesian cattle in Egypt. J. of Anim. Breed & Genet. 108, 349-354.
8. Mostafa AM, 1991: Genetic and non-genetic factors affecting production and reproduction traits in dairy cattle. Dissertation of Ph.D., Institute of Anim Prod, Godollo, Hungary.
9. Mostafa MA, Gere T, Ugri K, Csiba A, Ács I, Szücs E, 1989: Studies of production and reproduction traits of HF, Hungarian F. and Hungarian Fleckvieh x Meuse-Rhine-Yessel crossbred cows in Hungary. 1. Factors affecting 305MY, fat content and fat production. 40 th Ann. Meet, of The Europe Assoc for Anim Prod, Dublin, Ireland. 27-31. August.
10. Sölkner J, Füchs W, 1987: A comparison of different measures of persistency with special respect to variation of test-day milk yields. Livest Prod Sci 16, 305-319.
11. Szücs E, Kornel U, Acs I, Abraham M, 1989: A note to the relation system of production and reproduction traits in dairy and dual purpose cattle. 40th Ann Meet of Europ Assoc for Anim Prod, Dublin, Ireland. 27-31. August.
12. Vaccaro R, Enjoy GD, Sabate C, 1990: Age at first calving, production and reproductive performance during the first lactation in Carora cows and Holstein and Brown Swiss crossbreeds. Anim. Breed. Abst. 65 1334.
13. Vandepitte WM, Hazel LN, 1977: The efffect of errors in the economic weights on the accuracy of selection indices. Ann. Genet. Select. Anim. 9:87.