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| Aguiar,Vânia de Sousa Lima; Dourado,Leilane Rocha Barros; Lopes,João Batista; Machado,Luciana Pereira; Nascimento,Daphinne Cardoso Nagib do; Silva,Danilo Rodrigo Silva e; Santos,Edna Teles dos; Farias,Leonardo Atta. |
| ABSTRACT The objective of this study was to evaluate the effect of three levels of crude cottonseed oil on performance, organ weights, and blood parameters of growing broilers. Carcass and cut yields after 33 and 42 days of age and the economic viability of the diets were also evaluated. Male broilers of the Ross line were distributed in a completely randomized design, in a 4 × 2 factorial arrangement (0, 2, 4, and 6% inclusion of cottonseed oil, with and without ferrous sulfate) with five replicates. In the period from 22 to 33 days, quadratic and increasing linear effects were observed on feed intake and weight gain, respectively. Feed conversion during the same period was better with the addition of ferrous sulfate. The addition of ferrous sulfate... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Gossypol; Poultry; Vegetable oil. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016000500208 |
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| Merval,Ramon Rêgo; Dourado,Leilane Rocha Barros; Silva,Flávio Ferreira; Santos,Edna Teles dos; Lopes,João Batista. |
| ABSTRACT The effect of increased levels of metabolisable energy with glycerine or soybean oil was evaluated in the performance of broilers at four growth stages (1 to 7, 8 to 21, 22 to 33 and 34 to 42 days), in addition to the carcass and cut yield. A total of 2,400 birds were used in a completely randomised design in a 2 x 4 factorial scheme (two sources x four energy levels), with five replications. The treatments were determined by including glycerine or soybean oil at intervals of 75 kcal/kg of metabolisable energy in the diet: the first level with 75 kcal less than the requirement, the second corresponding to the requirement for each stage (2925, 2980, 3050 and 3100 Kcal), and the third and fourth levels with 75 kcal and 150 kcal more than the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Poultry farming; Fat; Energy sources; Performance. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902019000300458 |
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