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| Jordão Filho,José; Silva,José Humberto Vilar da; Silva,Cidinei Trajano; Costa,Fernando Guilherme Perazzo; Sousa,Janaína Maria Batista de; Givisiez,Patrícia Emília Naves. |
| This study aimed to estimate the energy requirements for maintenance and gain of Japanese and European quails under growth housed in two rearing systems: floor pens and cages. To determine maintenance requirements, two experiments were conducted with birds housed in cages in environmental chambers (experiment 1) and in floor pens at room temperature conditions (experiment 2). The experimental design was completely randomized with four levels of feed supply (100, 75, 50 and 25%) and four repetitions. Energy requirements for maintenance were estimated by the comparative slaughter method through a feeding trial. In experiment 1, 64 Japanese and European quails per treatment were housed in cages of climatic chambers at 18, 24, and 28 °C, while in experiment 2,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Breeding system; Energy; Modeling; Temperature. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011001100019 |
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| Jordão Filho,José; Silva,José Humberto Vilar da; Costa,Fernando Guilherme Perazzo; Sakomura,Nilva Kazue; Silva,Cidinei Trajano; Chagas,Nalberlania Alves. |
| The study was conducted to estimate requirements of energy and crude protein for maintenance, weight gain and egg production of Japanese quails in the period of 67 to 107 days of age. Two experiments were performed: one, to determine the requirements for maintenance of protein, and the other, for energy. Experiments were conducted in a completely randomized design with four dietary levels of offer and four replicates of six birds. The diets offered were: ad libitum (100%), 75%, 50%, and 25% consumption ad libitum (below maintenance). The methodology used to estimate the demand for maintenance was the comparative slaughter. For estimation of the requirement for weight gain, eight groups of 15 quails were reared separately, fed ad libitum and housed under 22... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Egg production; Energy; Modeling; Protein. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011001100020 |
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