Standardized ileal digestibility of protein and amino acids of sesame meal in growing pigs

Abstract

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.