Research Article
Estimation of Genetic and Phenotypic Parameters for Production Traits and Somatic Cell Count for Jersey Dairy Cattle in Zimbabwe
Table 2
Characteristics of the data sets.
| | | Parity | | | All | 1 | 2 | 3+ |
| | Records | 6725 | 1057 | 1117 | 4551 | | Sires | 135 | 133 | 135 | 132 | | Dams | 1093 | 1005 | 1054 | 1001 | | Herds | 21 | 21 | 21 | 21 | | Paternal family | 175 | | | | | Maternal family | 14 | | | |
| | Means and standard deviations in parenthesis | | Milk (kg) | 4468 (533) | 4420 (527) | 4528 (528) | 4464 (535) | | Fat (kg) | 199 (36) | 194 (35) | 223 (41) | 194 (33) | | Protein (kg) | 158 (25) | 155 (25) | 159 (25) | 158 (26) | | Fat% | 4.42 (0.37) | 4.35 (0.28) | 4.89 (0.39) | 4.33 (0.30) | | Protein% | 3.52 (0.15) | 3.50 (0.16) | 3.50 (0.14) | 3.53 (0.15) | |
Log10SCC
| 5.54 (0.56) | 5.32 (0.57) | 5.38 (0.59) | 5.50 (0.52) |
|
|
