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| Maia,GAR; Fonseca,JB; Soares,RTRN; Silva,MA; Souza,CLM. |
| Essa pesquisa teve por objetivo avaliar o efeito da adição de levedura seca de álcool (LSA) à dieta de poedeiras. Foram utilizadas 120 poedeiras Isabrown com 33 semanas de idade, distribuídas em um delineamento estatístico de blocos ao acaso, com cinco tratamentos (0, 7, 14, 21 e 28% de levedura), quatro repetições e seis aves por unidade experimental. Rações isoprotéicas (18% PB), isoenergéticas (2.800 kcal EM/kg), isocálcicas (3,8% Ca) e isofosfóricas (0,38% Pd) foram formuladas à base de milho e farelo de soja. Os níveis de LSA não afetaram a produção galinha dia (PGD=94,71± 0,96%), peso dos ovos (PO=64,35± 0,85g), peso médio final das aves (PMF=1.872,07± 50,36g), ganho de peso das aves (GP=-52± 25,84g) e umidade das excretas (UE=75,85± 3,81%).... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Levedura seca; Produção de ovo; Poedeiras comerciais. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2001000200005 |
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| Soares,R da TRN; Fonseca,JB; Santos,AS de O dos; Mercandante,MB. |
| Two completely randomized trials were conducted to estimate protein requirements of Japanese quails during the rearing and laying periods. In each trial, 150 quails were distributed in five treatments with five repetitions. Crude protein levels in the rearing period were 18, 20, 22, 24 and 26% (Trial 1) and during the laying period were 16, 18, 20, 22 and 24% (Trial 2). A quadratic effect of protein level was observed on weight gain from seven to 35 days (Trial 1). There were no effects of protein levels on feed intake and feed conversion. Protein levels in experimental diets during rearing had no effect on egg production up to 63 days. However, laying was delayed and variation in body weight was greater in quails fed lower protein levels. In Trial 2, a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Crude protein; Egg production; Japanese quails. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2003000200010 |
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