| Autor: |
SMR Samarakoon, K Samarasinghe |
| Jazyk: |
angličtina |
| Rok vydání: |
2012 |
| Předmět: |
|
| Zdroj: |
Tropical Agricultural Research, Vol 23, Iss 4, Pp 338-346 (2012) |
| Druh dokumentu: |
article |
| ISSN: |
1016-1422 |
| DOI: |
10.4038/tar.v23i4.4869 |
| Popis: |
This study was done using 2550 day-old, sex separated chicks (1275 males & 1275 females) to determine the most profitable grow-out period for broilers using different cost related performance indices and to ascertain the cost-effectiveness of sex-separate feeding of broilers. Feed intake and body weight were measured weekly for both sexes separately. Mortality, if any, during the rearing period was recorded. Average weight gain and Feed Conversion Ratio (FCR) of birds were calculated on a weekly basis up to the age of 35 day. Records of the same parameters were taken daily from day 36 to 42. Cost-benefit analysis was done using FCR, Performance Efficiency Factor (PEF), Unit Profitability (UP) and Unit Return Index (URI). FCR increased with increasing age in both sexes from day 1 to 42. Males had a significantly higher (P Tropical Agricultural Research Vol. 23 (4): 338-346 (2012) DOI: http://dx.doi.org/10.4038/tar.v23i4.4869 |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
