Open Access
Table 1.
Milk productivity for the three lactation
| Traits | Genotype | ||
|---|---|---|---|
| CC (n = 61) | TC (n = 90) | TT (n = 21) | |
| I lactation | |||
| 305‐day milk yield, kg | 7073.5±117.4 | 6859.2±139.4 | 7532.6±235.7** |
| Lactation milk yield, kg | 8391.8±248.7 | 8041.3±295.2 | 8778.2±297.8 |
| Lactation length, days | 366.9±10.8 | 364.3±10.7 | 363.1±15.9 |
| Milking index | 1349.4±29.0 | 1326.2±28.9 | 1468.3±54.3*** |
| One day lactation milk yield, kg | 22.9±0.3* | 22.1±0.2 | 24.2±0.4*** |
| II lactation | |||
| 305‐day milk yield, kg | 8059.0±171.5 | 7719.9±154.8 | 8222.9±287.5 |
| Lactation milk yield, kg | 8969.0±287.9 | 8438.2±242.0 | 9155.7±418.8 |
| Lactation length, days | 1324.7±31.8 | 1380.1±33.9 | 1469.6±30.4** |
| Milking index | 357.1±10.0 | 364.1±14.6 | 357.3±9.2 |
| One day lactation milk yield, kg | 25.1±0.4*** | 23.2±0.3 | 25.6±0.5*** |
| III lactation | |||
| 305‐day milk yield, kg | 6883.8±326.8 | 7271.5±259.9 | 8213.0±321.6** |
| Lactation milk yield, kg | 6883.8±326.8 | 7271.5±259.9 | 8213.0±321.6** |
| Lactation length, days | 1321.1±30.5 | 1421.9±30.3* | 1487.4±38.6*** |
| Milking index | 271.8±12.6 | 290.4±11.2 | 289.5±14.5 |
| One day lactation milk yield, kg | 25.3±0.5 | 25.0±0.4 | 28.5±0.6*** |
| Average 305‐day milk yield, kg | 7338.8±364.3 | 7283.5±248.5 | 7989.5±228.5* |
| Average milk yield for the three lactation, kg | 8081.5±621.6 | 7917.0±342.5 | 8715.6±273.9 |
| Milk yield for the three lactation, kg | 24244.6±158.2* | 23751.0±166.7 | 26146.9±227.9*** |
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