Brazil nut oil in diets for breeder cocks/Oleo de castanha do Brasil em racoes de galos reprodutores
This study aimed to evaluate the inclusion of Brazil nut oil in diets for breeder cocks on performance, semen analyses, biochemical serum profile and testicular morphology. Forty-two Rhode Island Red breeder cocks with 40 weeks of age were used. The experimental design was completely randomized cons...
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Published in: | Acta scientiarum. Animal sciences Vol. 40; no. 1 |
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Main Authors: | , , , , , , |
Format: | Journal Article |
Language: | English |
Published: |
Universidade Estadual de Maringa
01-01-2018
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Online Access: | Get full text |
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Summary: | This study aimed to evaluate the inclusion of Brazil nut oil in diets for breeder cocks on performance, semen analyses, biochemical serum profile and testicular morphology. Forty-two Rhode Island Red breeder cocks with 40 weeks of age were used. The experimental design was completely randomized consisting of seven levels of Brazil nut oil (0; 0.30; 0.60; 0.90; 1.20; 1.50 and 1.80%) in the diets. Data collected were evaluated by polynomial regression. Differences (p < 0.05) were detected in feed conversion, semen volume, motility, vigor, pH, swirling and concentration, in which the inclusion of Brazil nut oil in the diets improved the reproductive performance. Differences (p < 0.05) were also detected in the biochemical serum profile (triglycerides, cholesterol and blood pH); the inclusion of Brazil nut oil caused a large increase in blood triglycerides and cholesterol levels, consequently, changing the blood pH. The Brazil nut oil can be used as an energetic additive in diets given to breeder cocks, promoting better reproductive performance, without changing semen and testicular morphology, but altering the biochemical serum profile of the birds. Keywords: additive, fatty acids, metabolism, reproductive performance. Objetivou-se avaliar a inclusao de niveis crescentes de oleo de castanha do Brasil (0; 0,30; 0,60; 0,90; 1,20; 1,50 e 1,80%) em racoes de galos reprodutores sobre o desempenho, analise andrologica, perfil bioquimico serico e biometria testicular. Foram utilizados 42 galos reprodutores Rhode Island Red com 40 semanas, distribuidos em um delineamento experimental inteiramente casualizado constituido de sete tratamentos com seis galos (repeticoes) cada. As estimativas dos niveis de oleo de castanha foram determinadas atraves de regressao polinomial a 5% de significancia. Foram observadas diferencas (p < 0,05) nos resultados de conversao alimentar, volume seminal, motilidade, vigor, pH turbilhonamento e concentracao seminal a partir da a inclusao de oleo de castanha do Brasil nas racoes. Os resultados de perfil bioquimico serico (triglicerideos, colesterol e pH sanguineo) tambem apresentaram diferencas (p < 0,05) onde a inclusao de oleo de castanha do Brasil nas racoes ocasionou maior acumulo de triglicerideos e colesterol sanguineo, consequentemente modificando o pH do meio. Concluiu-se que o oleo de castanha do Brasil pode ser utilizado como aditivo energetico em racoes para galos reprodutores promovendo melhora na conversao alimentar e no desempenho reprodutivo, sem modificar a morfologia espermatica e testicular, porem, alterando o perfil bioquimico serico das aves. Palavras-chave: acidos graxos, aditivo, desempenho reprodutivo, metabolismo. |
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ISSN: | 1806-2636 |
DOI: | 10.4025/actascianimsci.v40i1.37472 |