Correlation between Intake and Composition of Fatty Acids in Meat from Lambs Fed Diets Containing Soybean Hulls
Lívia Santos Costa-Lopes
Department of Animal Science, Universidade Estadual do Sudoeste da Bahia – Itapetinga-BA, - Pç. Primavera 40 - CEP 45700-000 - Itapetinga, BA, Brasil, Brazil
Robério Rodrigues Silva
Department of Animal Science, Universidade Estadual do Sudoeste da Bahia – Itapetinga-BA, - Pç. Primavera 40 - CEP 45700-000 - Itapetinga, BA, Brasil, Brazil
Gleidson Giordano Pinto de Carvalho
Department of Animal Science, Universidade Federal da Bahia - Salvador, BA, Brasil, Brazil
Fabiano Ferreira da Silva
Department of Animal Science, Universidade Estadual do Sudoeste da Bahia – Itapetinga-BA, - Pç. Primavera 40 - CEP 45700-000 - Itapetinga, BA, Brasil, Brazil
Julliana Izabelle Simionato
Department of Chemistry, Researcher the National Research Council – CNPq, Brazil
Milena Patrícia Viana Bastos
Department of Animal Science, Universidade Estadual do Sudoeste da Bahia – Itapetinga-BA, - Pç. Primavera 40 - CEP 45700-000 - Itapetinga, BA, Brasil, Brazil
Ana Paula Gomes da Silva
Department of Animal Science, Universidade Estadual do Sudoeste da Bahia – Itapetinga-BA, - Pç. Primavera 40 - CEP 45700-000 - Itapetinga, BA, Brasil, Brazil
Mateus de Melo Lisboa
Department of Animal Science, Universidade Estadual do Sudoeste da Bahia – Itapetinga-BA, - Pç. Primavera 40 - CEP 45700-000 - Itapetinga, BA, Brasil, Brazil
Rodolpho Martim do Prado
Department of Animal Science, Universidade Estadual de Maringá, Brazil
George Abreu Filho
Department of Animal Science, Universidade Estadual do Sudoeste da Bahia – Itapetinga-BA, - Pç. Primavera 40 - CEP 45700-000 - Itapetinga, BA, Brasil, Brazil
*Author to whom correspondence should be addressed.
Abstract
The present study aimed to evaluate the correlation between the composition of fatty acids in the diet and Longissimus dorsi muscle of lambs diets containing different levels of soybean. The experiment was conducted at the campus UESB, Itapetinga-Ba, Brazil. In a randomized design, twenty five male uncastrated male sheep were used. The treatments consisted of different levels of substitution of corn by soybean hulls (0, 25, 50, 75 and 100% replacement) and elephant grass silage as roughage was supplied the experimental period of 110 days. After this period, the animals were slaughtered and samples of Longissimus dorsi were collected and vacuum-packed for later analysis of the profile of fatty acids. The Pearson correlation coefficient was used to calculate the relationship between the composition of fatty acids consumed and intramuscular fatty acid content. The results demonstrated the existence positive correlation of moderate to strong between the consumed and the contained fatty acids in meat by increasing the content of conjugated linoleic acid, the acids from the n-3 and n-6 family reducing n-3 regarding the meat of lambs fed soybean hulls.
Keywords: Monounsaturated fatty acids, polyunsaturated fatty acids, saturated fatty acids, small ruminants, soybean hulls