Amino acid digestibility in canola, cottonseed, and sunflower products fed to finishing pigs

Abstract

Our objective was to determine the standardized ileal digestibility (SID) of CP and AA in soybean meal (SBM) and canola, cotton, and sunflower products fed to finishing pigs. Each of 8 barrows (average initial BW = 106.6 ± 5.5 kg) were surgically fitted with a T-cannula in the distal ileum. Pigs were allotted to an 8 × 8 Latin square design with 8 diets and 8 periods. The 7 protein ingredients were canola seeds (CS), canola meal (CM), cottonseed meal (CSM), sunflower seeds (SFS), sunflower meal (SFM), dehulled sunflower meal (SFM-DH), and SBM, with each ingredient included as the sole source of AA in the diet. A N-free diet was used to estimate basal endogenous losses of AA. Among tested ingredients, SBM had the greatest (P < 0.05) SID of Lys, and CS had the least (P < 0.05) SID of Phe, Thr, and Tyr. The SID of all indispensable AA except Trp was less (P < 0.05) in CS than SBM, and CM had a greater (P < 0.05) SID of all indispensable AA except Arg, His, Lys, and Trp than CS. However, the SID of all indispensable AA except Arg and Trp were less (P < 0.05) in CM than in SBM. The SID of all indispensable AA except Arg and Trp also were less (P < 0.05) in CSM than in SBM, and the SID of Met was less (P < 0.05) in CSM than in all other ingredients. Among sunflower products, the SID of His, Leu, Phe, and Thr were less (P < 0.05) in SFM-DH than in SFS and SFM, and the SID of Ile, Met, and Val were less (P < 0.05) in SFM-DH than in SFS; however, for CP, Arg, Lys, and Trp, no differences among SFS, SFM, and SFM-DH were observed. The SID of all indispensable AA except Trp were less (P < 0.05) in SFM-DH than SBM, and the SID of His, Ile, Lys, Thr, and Val in SFM were also less (P < 0.05) than in SBM. Except for Lys, no differences between SBM and SFS were observed. In conclusion, the SID of most AA in CS, CM, CSM, SFM, and SFM-DH are less than in SBM.

Worldwide Mycotoxins Exposure in Pig and Poultry Feed Formulations

“…Adequate supplementation with lysine appears to increase performances in broiler chicks fed diets containing extruded cottonseed meal [74]. Similar results have been observed in pigs [70,71,72,75,76]. …”

“…The beneficial effect of enzyme supplementation appears to vary [66,67,68]. Sunflower meal can also be used in pig feed, although some studies suggest that amino acid digestibility was lower than in soybean meal [69,70,71,72]. …”

Evaluation of Energy Digestibility and Prediction of Digestible and Metabolisable Energy in Sunflower Seed Meal Fed to Growing Pigs

“…Although the production process for most SFSMs was similar using prepressing extraction method (Fick and Miller, 1997), small differences in temperature, pressure and time might lead to the changes in chemical concentration in SFSM (Clandinin and Robblee, 1950). The NDF content of the ten SFSMs was higher than the data reported by González-Vega and Stein (2012), but the average concentration of ADF was lower than the value reported in National Research Council (2012). The reason was not clear depending on the previous papers, but the different grown places may had a role in these difference in chemical composition.…”

The influence of oil extraction process of different rapeseed varieties on the ileal digestibility of crude protein and amino acids in broiler chickens

“…Rapeseed co-products are rich in crude protein (CP) and S-containing amino acids (AA) such as methionine and cysteine (Woyengo et al, 2010;, and are less expensive feed ingredients than soybean meal (Gonzalez-Vega and Stein, 2012). However, the chemical composition of these protein ingredients varies depending on the rapeseed variety and associated method of cultivation, environmental and climatic changes (McFadden et al, 2006) and de-oiling method including the mechanical and thermal treatments employed (Leming and Lember, 2005;Messerschmidt et al, 2014;Eklund et al, 2015).…”