Performance of female broiler breeders submitted to different feeding schedules
| Autor: | VS de Avila, AM Penz Jr., PAR de Brum, PS Rosa, AL Guidoni, ÉAP de Figueiredo |
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| Jazyk: | angličtina |
| Rok vydání: | 2003 |
| Předmět: | |
| Zdroj: | Brazilian Journal of Poultry Science, Vol 5, Iss 3, Pp 197-201 (2003) |
| Druh dokumentu: | article |
| ISSN: | 1516-635X 1806-9061 |
| DOI: | 10.1590/S1516-635X2003000300007 |
| Popis: | The performance of Arbor Acres broiler breeders (1,296 females; 144 roosters) was evaluated when submitted to the following treatments (T): T1 = feeding at 6:30 a.m. (control); T2 = 50% feeding at 6:30 a.m. and 50% at 3:30 p.m. (dual feeding); T3 = feeding at 11:00 a.m.; and T4 = feeding at 3:30 p.m. Treatments were randomly distributed in 48 pens. There were 27 females and 3 males in each pen and 12 repetitions per treatment. Nutrition and management were as recommended for the commercial strain. It was evaluated age at first egg (AFE), total egg production (TEP), number of days with production above 80% (DAP80), laying peak (P), female mortality (MOR), and gross profit margin (GM) per hen. Data were submitted to analysis of variance and means were compared by Student's t-Test. TEP of T1 (186.3±2.3) and T2 (186.5±1.5) were higher (p0.10) among treatments. GM per hen was better (p |
| Databáze: | Directory of Open Access Journals |
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