Rosewood (Aniba rosaeodora Ducke) oil in broiler chickens diet
A study was conducted to evaluate the effects of Rosewood oil (RO) on performance, carcass and commercial cut yields and microbiology of the gastrointestinal tract of broiler chickens. Five hundred and forty one-day-old male broiler chicks were arranged in a completely randomized design with six tre...
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| Published in: | Revista brasileira de saúde e produção animal Vol. 15; no. 1; pp. 108 - 119 |
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| Main Authors: | , , , , , , , , |
| Format: | Journal Article |
| Language: | English |
| Published: |
UFBA - Universidade Federal da Bahia
01-03-2014
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| Subjects: | |
| Online Access: | Get full text |
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| Summary: | A study was conducted to evaluate the effects of Rosewood oil (RO) on performance, carcass and commercial cut yields and microbiology of the gastrointestinal tract of broiler chickens. Five hundred and forty one-day-old male broiler chicks were arranged in a completely randomized design with six treatments and six repetitions consisting of 15 broiler chicks each. The treatments were: inclusion levels of 0.00mL (0.00EO); 0.15mL (0.15 EO); 0.30mL (0.30 EO); 0.45mL (0.45 EO) and 0.60mL (0.60 EO) of RO/kg diet and control (commercial promoter virginiamycin). At 21 and 40 days old, no significant differences in body weight, feed intake, feed conversion and viability of birds were observed when comparing the controls with the different levels of inclusion of RO. The carcass yields of commercial cuts were not affected by treatments. The increased level of RO reduced the relative weight of the intestines. The broilers consuming growth promoter had the highest concentration of Escherichia coli in the intestinal contents, compared to 0.00 EO and 0.30 EO. It was concluded that, Rosewood oil does affect the performance and yield slaughter, but it does reduce the relative weight of the intestines. RO does not show a consistent antimicrobial activity in vivo against Escherichia coli.
O estudo foi conduzido para investigar os efeitos do óleo essencial de pau rosa sobre o desempenho, rendimento de carcaça e cortes comerciais e microbiologia do trato gastrintestinal de frangos de corte. Foram utilizados 540 pintos machos de um dia de idade, distribuídos num delineamento inteiramente casualizado com seis tratamentos e seis repetições de 15 aves cada. Os tratamentos consistiram em: níveis de inclusão de 0,00mL (0,00 EO); 0,15mL (0,15 EO); 0,30mL (0,30 EO); 0,45mL (0,45 EO) e 0,60mL (0,60 EO) de óleo essencial de pau rosa/kg de ração e controle (promotor comercial virginiamicina). Aos 21 e 40 dias de idade, não foram observadas diferenças significativas para peso corporal, consumo de ração, conversão alimentar e viabilidade das aves quando comparado o tratamento controle e os diferentes níveis de inclusão de RO. Os rendimentos de carcaça e de cortes comerciais não foram influenciados pelos tratamentos. O aumento do nível de inclusão de RO diminuiu o peso relativo dos intestinos. O promotor de crescimento teve maior concentração de Escherichia coli na digesta intestinal quando comparado com 0,00 EO e 0,30 EO. Conclui-se que o óleo essencial de pau rosa não afeta o desempenho e rendimento de abate, reduz o peso relativo dos intestinos. O RO mostra atividade antimicrobiana consistente contra Escherichia coli. |
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| ISSN: | 1519-9940 1519-9940 |
| DOI: | 10.1590/S1519-99402014000100014 |