Immune response, blood parameters and growth performance in broiler fed reduced protein diet supplemented with β-hydroxy-β-methyl butyrate and conjugated linoleic acid
| Autor: | Pouya Zamani, Ali Asghar Saki, Alireza Nourian, Vahid Khoramabadi |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
insulin
protein synthesis 040301 veterinary sciences Lymphocyte medicine.medical_treatment Conjugated linoleic acid Soybean meal Feed conversion ratio 0403 veterinary science chemistry.chemical_compound Animal science blood cell célula sanguínea Low-protein diet síntese proteíca low protein diet medicine insulina skin and connective tissue diseases hematological parameter lcsh:SF1-1100 Chemistry Insulin parâmetro hematológico 0402 animal and dairy science Broiler food and beverages 04 agricultural and veterinary sciences 040201 dairy & animal science dieta baixa em proteínas medicine.anatomical_structure Animal Science and Zoology Hemoglobin lcsh:Animal culture human activities Food Science |
| Zdroj: | Acta Scientiarum: Animal Sciences, Vol 40, Iss 1, Pp e38000-e38000 (2018) Acta Scientiarum. Animal Sciences; Vol 40 (2018): Publicação Contínua; e38000 Acta Scientiarum. Animal Sciences; v. 40 (2018): Publicação Contínua; e38000 Acta Scientiarum. Animal Sciences Universidade Estadual de Maringá (UEM) instacron:UEM Acta Scientiarum. Animal Sciences, Volume: 40, Article number: e38000, Published: 16 AUG 2018 |
| ISSN: | 1807-8672 1806-2636 |
| Popis: | In this experiment a total of 300 d-old broilers (Ross 308) were randomized across 20 floor pens and reared up to 42 d. Treatments includes: 1) A normal-protein diet (NPD) was formulated according to the Ross 308 recommendation (2014) by corn and soybean meal, 2) A reduced-protein diet (RPD) was prepared with dietary protein reduced by 12 g kg-1 (1.2%) relative to the NPD, 3) HMB+ RDP, 4) CLA+RDP and 5) CLA+ HMB+ RDP. The results showed that broilers fed HMB diet had higher Average Daily Gain (ADG) and Feed Conversion Rate (FCR) significantly improved by HMB during the grower or the whole period (p < 0.05). Titer of serum antibodies of Newcastle disease was maximum in treatment supplemented with CLA+HMB compared to the control (RPD) in day 42. In comparison with the control, feeding CLA increased Lymphocyte and decreased heterophil and H/ L ratio (p < 0.05). Insulin hormone secretion increased by dietary HMB (p < 0.05). Red Blood Cells (RBC) and Hemoglobin (Hb) was significantly increased by HMB supplemented diet (p < 0.05). It could be concluded that supplementations of HMB and CLA together in reduced-protein diet have positive effect on growth performance, immune system and hematological parameter. RESUMO. Um total de frangos com 300 dias de vida (Ross 308) foram aleatoriamente distribuídos em 20 recintos fechados e criados por 42 dias. Os tratamentos incluem 1) Dieta normal em proteínas (NPD) foi formulada de acordo com a recomendação para os Ross 308 (2014) a dieta consiste em milho e soja, 2). Uma dieta de proteínas reduzida (RPD) foi preparada com as proteínas reduzidas em 12 g kg-1 (1.2%) em comparação com o NPD, 3) HMB+ RDP, 4) CLA+RDP e 5) CLA+HMB+RDP. O resultado mostrou que os frangos alimentados pela dieta HMB tiveram uma maior Média de Ganho Diário (ADG) e Taxa de Conversão de Alimentos (FCR) significativamente melhorada pelo HMB durante o crescimento ou por todo o período (p < 0.05)., concentrações de soro de anticorpos da doença de Newcastle foi maximizada no tratamento suplementado com CLA+HMB comparadas com o controle (RPD) no dia 42. Na comparação com o controle, a alimentação CLA aumentou o Linfócitos (L) e diminuiu o heterofilo (H) e a proporção H/L (p < 0.05). A secreção do hormônio da insulina foi aumentado pela dieta HMB (p |
| Databáze: | OpenAIRE |
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