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Details van artikel 49 van 62 gevonden artikelen
| Titel: |
Productive and Reproductive Efficiency of Imported and Local Born Jersey Breed of Cattle in the Subtropical Environment of Pakistan |
| Auteur: |
Intizar Ali Riaz Hussain Mirza Azam Ali Nasir |
| Verschenen in: |
Pakistan journal of biological sciences |
| Paginering: | Jaargang 2 (1999) nr. 1 pagina's 220-221 |
| Jaar: |
1999 |
| Inhoud: |
Data concerning productive and reproductive traits, was collected from 1985-91 and analyzed. The analysis, for local born Jersey and imported Jersey cows, revealed that the, age at first calving average 771.48 ±7.88 and 800.51 ±8.48 days, services per conception were 1.83 ±0.069 and 1.88 ±0.072, services period was 100.99 ±4.63 and 107.03 ±2.77 days, gestation period was observed to be 279.26 ±0.51 and 277.49 ±0.36 days and was longer in cows carrying male calves than those carrying female calves; calving interval averaged 380.93 ±6.36 and 387.18 ±0.3 days, local jersey cows showing shorter calving interval than imported jersey but non-significant, 305-days milk production average 2194.52 ±57.24 and 3150.48 ±46.18 litters, showing that local born Jersey group produced less milk than their imported dams and results were highly significant, dry period was found to be 157.91 ±9.70 and 133.30 ±5.77 days respectively. Whereas the effect of season of birth on age at first calving was found to be non significant. |
| Uitgever: |
Asian Network for Scientific Information (provided by DOAJ) |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 49 van 62 gevonden artikelen
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