RESUMO
The aim of this study was to evaluate the effect of including cassava foliage hay in quail diets on the performance, carcass characteristics, and economic viability of rearing these animals in the period of 1 to 35 days of age. Four hundred 1-day-old unsexed quail were distributed into five treatments in a completely randomized design with eight replicates and 10 birds per experimental unit. Experimental treatments consisted of diets including 0.0, 0.5, 10.0, 15.0, and 20.0% cassava foliage hay (CFH). Feed intake increased linearly (P 0.05), while feed conversion worsened (P 0.05) in the period of 1 to 21 days. During the phase of 22 to 35 days, the cassava by-product inclusion levels caused the feed intake and weight gain of the quails to decrease linearly (P 0.05), but did not influence (P > 0.05) feed conversion. In the period of 1 to 35 days of age, the CFH inclusion levels had a linear effect (P 0.05) on the performance variables, leading to an increase in feed intake and weight gain and worse feed conversion. An influence of the CFH levels was detected (P
RESUMO
The aim of this study was to evaluate the effect of including cassava foliage hay in quail diets on the performance, carcass characteristics, and economic viability of rearing these animals in the period of 1 to 35 days of age. Four hundred 1-day-old unsexed quail were distributed into five treatments in a completely randomized design with eight replicates and 10 birds per experimental unit. Experimental treatments consisted of diets including 0.0, 0.5, 10.0, 15.0, and 20.0% cassava foliage hay (CFH). Feed intake increased linearly (P 0.05), while feed conversion worsened (P 0.05) in the period of 1 to 21 days. During the phase of 22 to 35 days, the cassava by-product inclusion levels caused the feed intake and weight gain of the quails to decrease linearly (P 0.05), but did not influence (P > 0.05) feed conversion. In the period of 1 to 35 days of age, the CFH inclusion levels had a linear effect (P 0.05) on the performance variables, leading to an increase in feed intake and weight gain and worse feed conversion. An influence of the CFH levels was detected (P
RESUMO
This study evaluated the effect, on productive performance and on egg quality, of replacing corn with broken rice in the feed of 64-148 day-old Japanese quails. The experiment was conducted in a randomized complete block design with five treatments consisting of five inclusion levels of broken rice (0%, 25%, 50%, 75%, and 100%) with eight replicates of eight birds each. No significant differences were observed in productive performance variables across treatments (P > 0.05, all). Regarding egg quality, no significant differences were observed in yolk percentage, specific gravity, or Haugh unit across treatments (P > 0.05 for all parameters). However, yolk color index was negatively affected by dietary rice husk levels (Y = 4.080 - 0.0293X, R² = 98.56%; P 0.05). Thus, corn can be replaced with up to 100% broken rice in diets for laying Japanese quails without losses in productive performance or egg quality, but corn replacement with broken rice affects yolk color.
Objetivou-se avaliar a substituição do milho pela quirera de arroz, em rações de codornas japonesas em postura sobre o desempenho zootécnico e a qualidade de ovos no período de 64 a 148 dias de idade. O experimento foi conduzido em um delineamento de blocos casualizados com cinco tratamentos, que consistiram na inclusão de cinco níveis (0, 25, 50, 75 e 100%) de quirera de arroz em substituição ao milho nas rações, com oito repetições de oito aves cada. Não foram verificadas diferenças significativas (P > 0,05) para as características de desempenho das aves. Para as características de qualidade de ovos, não foram observadas diferenças significativas (P > 0,05) sobre as variáveis percentagens de gema, gravidade específica e unidade Haugh. Entretanto, a coloração da gema sofreu influencia (P 0,05) pelos dos níveis de inclusão de quirera de arroz, verificando efeito linear negativo (Y = 4,080 - 0,0293X; R² = 98,56%) com o aumento da inclusão da quirera. É possível substituir o milho em até 100% pela quirera de arroz em rações para codornas japonesas em postura, sem que haja prejuízos no desempenho produtivo das aves e na qualidade dos ovos. Porém, a substituição do milho por quirera causa diminuição da coloração da gema.
RESUMO
This study evaluated the effect, on productive performance and on egg quality, of replacing corn with broken rice in the feed of 64-148 day-old Japanese quails. The experiment was conducted in a randomized complete block design with five treatments consisting of five inclusion levels of broken rice (0%, 25%, 50%, 75%, and 100%) with eight replicates of eight birds each. No significant differences were observed in productive performance variables across treatments (P > 0.05, all). Regarding egg quality, no significant differences were observed in yolk percentage, specific gravity, or Haugh unit across treatments (P > 0.05 for all parameters). However, yolk color index was negatively affected by dietary rice husk levels (Y = 4.080 - 0.0293X, R² = 98.56%; P 0.05). Thus, corn can be replaced with up to 100% broken rice in diets for laying Japanese quails without losses in productive performance or egg quality, but corn replacement with broken rice affects yolk color.
Objetivou-se avaliar a substituição do milho pela quirera de arroz, em rações de codornas japonesas em postura sobre o desempenho zootécnico e a qualidade de ovos no período de 64 a 148 dias de idade. O experimento foi conduzido em um delineamento de blocos casualizados com cinco tratamentos, que consistiram na inclusão de cinco níveis (0, 25, 50, 75 e 100%) de quirera de arroz em substituição ao milho nas rações, com oito repetições de oito aves cada. Não foram verificadas diferenças significativas (P > 0,05) para as características de desempenho das aves. Para as características de qualidade de ovos, não foram observadas diferenças significativas (P > 0,05) sobre as variáveis percentagens de gema, gravidade específica e unidade Haugh. Entretanto, a coloração da gema sofreu influencia (P 0,05) pelos dos níveis de inclusão de quirera de arroz, verificando efeito linear negativo (Y = 4,080 - 0,0293X; R² = 98,56%) com o aumento da inclusão da quirera. É possível substituir o milho em até 100% pela quirera de arroz em rações para codornas japonesas em postura, sem que haja prejuízos no desempenho produtivo das aves e na qualidade dos ovos. Porém, a substituição do milho por quirera causa diminuição da coloração da gema.