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Prof. Maher Hasab El-Nabi Khalil :: Publications: |
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| Title: | Estimation of genetic parameters for single and composite milk traits in Fleckvieh cattle and their uses in programmes of early selection - 1993 |
| Authors: | Soliman A.M., Khalil M.H. |
| Year: | 1993 |
| Keywords: | Fleckvieh cattle, single and composite milk traits, genetic parameters, early selection. |
| Journal: | Egyptian Journal of Animal Production |
| Volume: | 30 |
| Issue: | 1 |
| Pages: | 21-36 |
| Publisher: | Egyptian Association of Animal Production |
| Local/International: | Local |
| Paper Link: | |
| Full paper | Maher Hasab El-Nabi Khalil_1993 - Estimation of genetic parameters for single and composite milk traits in Fleckvieh cattle.pdf |
| Supplementary materials | Not Available |
| Abstract: |
Data on 58767 Austrian Fleckvieh lactation records representing 985 Al sires were used to estimate the change of genetic parameters of 100- and 305-day lactation milk traits with the advance of parity up to the fourth one. Milk traits were yields of milk, fat and protein an single traits and yield of fat-plus-protein and protein to fat ratio as composite traits. In most cases, sire of cow, cow-within-sire, year, season of calving, year X season interaction and both days open and age at calving (as linear and quadratic covarlates) had pronounced effects (P |
