Abstract #M176

# M176
Apparent and standardized ileal digestibility of amino acids in soybean meal and canola meal in finished pigs.
Juan Edrei Sanchez*1, Ignacio Arturo Dominguez1, Ernesto Morales1, Jose Luis Yañez2, Miguel Cervantes3, 1Universidad Autonoma del Estado de Mexico, Toluca, Estado de Mexico, Mexico, 2Universidad Autonoma de Tlaxcala, Tlaxcala, Tlaxcala, Mexico, 3Universidad Autonoma de Baja California, Mexicali, Baja California, Mexico.

In México the production of soybeans and canola seeds are limited; the countries exporters of these ingredients to Mexico are United States and Canada for oil extraction and animal feed. The remainder after oil extraction in these ingredients is used in swine nutrition. Digestibility studies in soybean meal and canola meal have been conducted in other countries, however, the digestibility of these ingredients in Mexico is unknown. A study was conducted to determinate apparent ileal digestibility (AID) and standardized ileal digestibility (SID) of amino acids (AA) for soybean meal and canola meal. Six Ileal-cannulated barrows (75.1 kg BW) were fed 3 diets in a replicated 3 × 3 Latin square design in finished pigs in 3 periods, which consisted at 2.8 maintenance over 3 periods consisting of a 5-d diet adaptation, 2-d collection of feces, and a 2-d collection of ileal digesta. In the total AID of AA was similar (P > 0.05) between soybean meal and canola meal, and had 79.62 and 78.60%, respectively. With respect to lysine and threonine the soybean meal had higher (P < 0.05) AID values in 84.7 vs 78.4 and 74.4 vs. 70.8%, respectively, than canola meal. The AID in methionine was higher (P < 0.05) 3.88% in canola meal than soybean meal. for SID, all indispensable AA was higher (P < 0.05) in the soybean meal that canola meal except for methionine that was higher (P < 0.05) in canola meal (3.61%-units) that soybean meal. The digestibility of AA in the present study was lower compared with other studies. The difference may be due to the varieties of soybean meal and canola meal used for feed pigs, furthermore, The temperature used in the process of oil extraction in soybean and canola seeds is the main factor that could affect the quality of AA, decreasing the digestibility of CP and AA.

Key Words: soybean meal, canola meal, digestibility