Feeding management strategy for male broiler breeders and its effects on body weight, hatchability and fertility
| Autor: | Francisco dos Santos Gomes, Fernanda Heloisa Litz, MM Silveira, Jms Martins, Cintia Amaral Moraes, Evandro de Abreu Fernandes, AG de Freitas, Naiara Simarro Fagundes |
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| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Veterinary medicine
lcsh:Veterinary medicine media_common.quotation_subject animal diseases poultry Broiler Rooster Fertility Biology Body weight biology.organism_classification reproductive performance Management strategy Animal science lcsh:Zoology lcsh:SF600-1100 Animal Science and Zoology Flock lcsh:Animal culture lcsh:QL1-991 Incubation Management practices media_common Nutrition lcsh:SF1-1100 |
| Zdroj: | Brazilian Journal of Poultry Science, Vol 16, Iss 4, Pp 397-402 (2014) |
| ISSN: | 1806-9061 |
| Popis: | The objective of the present study was to evaluate the supply of a specific-male diet on rooster body weight, hatchability, and fertility. Two diets were supplied during the egg production period: treatment 1, diet formulated for females and containing, in average, 2,830 kcal ME/kg and 15% CP; and treatment 2, diet specifically formulated for male broiler breeders, containing 2,750 kcal ME/kg and 13.5% CP. In the experiment, 26 flocks, with approximately 7,000 females and 840 males each, belonging to the same broiler breeder commercial strain, were distributed into 26 houses (1200m 2 ) on the same farm, and submitted to the same management practices. Body weight was evaluated in 13 flocks per treatment and for five weeks (45, 50, 55, 60, 65), and hatchability and fertility in four incubation lots per treatment and for the same weeks. Data were evaluated by the analysis of mixed models for repeated measurements, using the PROC MIXED of SAS 9.3 (SAS Institute Inc., Cary, NC, USA), and means were compared by the test of Tukey-Kramer at 5% significance level. The specific-male diet allowed body weight control during all analyzed weeks and promoted high hatchability and egg fertility. The increase in the number of chicks hatched demonstrates the economic viability of feeding a specific diet for male broiler breeders. |
| Databáze: | OpenAIRE |
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