suplementação de vitamina c associada à densidade de criação no desempenho de frangos de corte vitamin c supplementation associated to floor space on broiler performance
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1993
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Abstract
Avaliou-se o efeito da suplementação da vitamina C (75 e 150 mg/kg) na alimentação de frangos de corte machos sob condições de estresse de calor e superlotação. As aves foram criadas sobre "cama" de cavaco de madeira nas lotações de 10 e 14 aves/m². O delineamento experimental foi o inteiramente casualizado em esquema fatorial (3 níveis de vitamina C na ração e 2 lotações), com 5 repetições. Os resultados indicaram que o aumento da lotação de criação prejudicou (P<0,05) o ganho de peso das aves no período final da criação. A conversão alimentar dos 35 aos 48 dias de idade foi melhor (P <0,01) nas aves que receberam suplementação de 75 mg/kg em comparação com o controle. A suplementação de 150 mg/kg deu média de conversão alimentar melhor do que a média da testemunha, porem, as diferenças não foram significativas. A suplementação de vitamina C apresentou efeito benéfico no desempenho de frangos de corte. O benefício se mostrou particularmente importante na melhoria da conversão alimentar.
The effect of vitamin C supplementation (75 and 150 mg/kg) was evaluated in male broiler feeding under heat stress, crowding and normal floor space conditions. The results showed that crowding conditions (10 vs. 14 birds/m²) affected negatively (P<0.05) body weight gain from 28 to 48 days of age. Feed conversion from 35 to 48 days of age was unproved (P<0.01) in birds supplemented with 75 mg/kg as compared to the control. Birds which received 150 mg of vitamin C per kg of feed showed better feed conversion than the control birds, but differences were not significant.
The effect of vitamin C supplementation (75 and 150 mg/kg) was evaluated in male broiler feeding under heat stress, crowding and normal floor space conditions. The results showed that crowding conditions (10 vs. 14 birds/m²) affected negatively (P<0.05) body weight gain from 28 to 48 days of age. Feed conversion from 35 to 48 days of age was unproved (P<0.01) in birds supplemented with 75 mg/kg as compared to the control. Birds which received 150 mg of vitamin C per kg of feed showed better feed conversion than the control birds, but differences were not significant.
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| Reference Key |
silva1993scientiasuplementao
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| Authors | ;R.D.M. Silva;J.F.M. Menten;M.K. Cardoso;G.G. Ghirardi |
| Journal | journal of the iranian chemical society |
| Year | 1993 |
| DOI |
10.1590/S0103-90161993000300025
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