Abstract

REIS DE SOUZA, Tércia Cesária; AGUILERA BARREYRO, Araceli  and  MARISCAL LANDIN, Gerardo. Standardized ileal digestibility of protein and amino acids of sesame meal in growing pigs. Rev. mex. de cienc. pecuarias [online]. 2021, vol.12, n.4, pp.1292-1304.  Epub June 06, 2022. ISSN 2448-6698.  https://doi.org/10.22319/rmcp.v12i4.5714.

To determine the apparent (AID) and standardized ileal digestibility (SID) of the amino acids of sesame meal (SM), 10 pigs of 78.6 ± 5.2 kg, housed in metabolic cages, were used; located in a room with controlled temperature (19 to 22 °C). The pigs were implanted with a “T” cannula in the ileum and fed twice a day, at 2.5 times their digestible energy requirement for maintenance (110 kcal per kg of LW0.75). Two diets were prepared with 160 g of CP/kg of feed: one with SM and one with soybean meal (SBM). The results show that the AID of the following amino acids was higher in SM than in SBM: arginine (P<0.0001) 7.3 units; alanine, glutamic acid, glycine, methionine and valine, it was on average 6.8 units higher (P<0.01); cysteine, it was higher by 11.5 units (P<0.05). On the contrary, the AID of proline (P<0.0001), leucine (P<0.01) and lysine (P<0.05) was lower by 21.9, 2.8 and 2.5 units, respectively, in SM than in SBM. The SID of arginine (P<0.0001) was 6.7 % higher; valine (P<0.001) 10.6 % higher, alanine, glutamic acid, glycine and threonine (P<0.01), it was higher on average by 6.4 %; and cysteine, histidine, isoleucine, and tyrosine (P<0.05), it was 7.45 % higher in SM than in SBM. The SID of proline (P<0.01) and leucine (P<0.05) was lower by 4.7 and 2.1 SM than in SBM. It is concluded that SM is a good source of digestible amino acids for pig feeding.

Keywords : Sesame meal; Ileal digestibility; Amino acids; Pigs.

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