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| Santos,Tânia M. B. dos; Trevizan,Paula S. F.; Xavier,Cristiane A. N.; Kiefer,Charles; Ferraz,André L. J.. |
| ABSTRACT This study aimed to evaluate the efficiency of anaerobic digestion and biogas production by manure from pig supplemented with ractopamine over different periods. We used manure of 50 finishing pigs according to the following diets: without supplementation and supplemented with 20-ppm ractopamine during 7, 14, 21, 28 and 35 days pre-slaughter. Continuous bench biodigesters were used in the experiment. We measured biogas production and made analyses of total (TS) and volatile solids (VS), pH, total phosphorus (total P), total nitrogen (total N) and ammoniacal nitrogen (ammoniacal N) in samples of manure, affluent and effluent from biodigesters. The pH and ammoniacal N as indicator parameters of the process balance and stability were satisfactory.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Β-adrenergic; Biogas; Ractopamine hydrochloride; Environmental impact and nutrient partitioning. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162016000300399 |
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| Costa,Clara Viviane Silva da; Moreira,José Aparecido; Marinho,Andreza Lourenço; Silva,Natália Rocha; Carmo,Myllena Emelly de Paiva; Ramalho,Adriana Margarida Zambotto; Aguiar,Emerson Moreira; Souza,Janete Gouveia de; Teixeira,Elisanie Neiva Magalhães. |
| ABSTRACT: The objective of this study was to explore the substitution of ractopamine by coconut or safflower oil in finishing pig diets. The study included 24 crossbred barrows weighing 78.00 ± 8.76 kg distributed in a randomized block design with four treatments and six replicates composed of: basal ration (BR), BR + 10 ppm ractopamine, BR + four 1 g capsules of safflower oil, and BR + four 1 g capsules of coconut oil. Performance evaluation showed that safflower oil, ractopamine, and coconut oil supplementation had a significant effect (P < 0.05) on weight gain and feed conversion. Carcass-related variables were also affected by the treatments (P < 0.05), with fat thickness 3 (FT3) reduced by the use of safflower oil, ractopamine, and coconut oil.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Β-adrenergic; Fat deposition; Lipid metabolism; Vegetable oils.. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020000600651 |
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