| You are in:Home/Publications/Milk protein as a breeding objective in Braunvieh cattle breeding - 1989 | |
Prof. Maher Hasab El-Nabi Khalil :: Publications: |
|
| Title: | Milk protein as a breeding objective in Braunvieh cattle breeding - 1989
|
| Authors: | Soliman A.M., Khalil M.H. |
| Year: | 1989 |
| Keywords: | Braunvieh cattle, Milk protein, breeding objective |
| Journal: | Third Egyptian-British Conference on Animal, Fish and Poultry Production, Alexandria University, Alexandria, Egypt, Issued in The Journal of Agricultural Science / Cambridge, Volume 115 / Issue 01, pp 151 |
| Volume: | Not Available |
| Issue: | Not Available |
| Pages: | 301-316 |
| Publisher: | Cambridge University Press |
| Local/International: | International |
| Paper Link: | |
| Full paper | Maher Hasab El-Nabi Khalil_1989 - Milk protein as a breeding objective in Braunvieh cattle breeding.pdf |
| Supplementary materials | Not Available |
| Abstract: |
Milk production records for valley and mountain pastured Braunvieh cows of Tirol region in Austria were collected in the period from 1977 to 1981. Data on 46456 lactation records including 16569 paternal half-sisters representing 1556 sires were used to estimate the genetic and phenotypic variation and covariation of and between 305-day and total yield and percentages milk traits. Heritabilities for yield traits ranged from 0.40 to 0.54 for 305-day laction and from 0.36 to 0.45 for total lactation, while the estimates for fat and protein percentages were 0.30 and 0.40, respectively. Genetic and phenotypic correlations among yield traits and fat and protein percentages were estimated. |
