Nutritive value of expeller/cold-pressed canola meal and pre-pressed solvent-extracted carinata meal for broiler chicken

Abstract

A study was conducted to evaluate standardized ileal digestibility ( SID ) of amino acids ( AA ) and nitrogen-corrected apparent metabolizable energy ( AMEn ) values of pre-pressed solvent-extracted carinata meal ( SE-carinata meal ) and expeller/cold-pressed canola meal ( ECP-canola meal ) for broilers. Two hundred and forty broiler chicks were divided into 40 groups of 6 birds/group and fed 4 diets in a completely randomized design (10 groups/diet) from 14 to 21 d of age. The diets were cornstarch-based containing SE-carinata meal, ECP-canola meal, or pre-pressed solvent-extracted canola meal (SE-canola meal; reference feedstuff) as the sole protein source, and N-free diet. Digestibility of AA and N retention for feedstuffs was determined by the direct method, whereas energy retention of feedstuffs was determined by difference from the N-free diet. On DM basis, SE-canola meal, ECP-canola meal, and SE-carinata meal contained 43, 36, and 50% CP; 2.60, 2.21, and 1.82% Lys; 32, 29, and 27% neutral detergent fiber, and 1.1, 15.3, and 0.88% ether extract, respectively. On DM basis, the AMEn value was lowest ( P < 0.05) for SE-carinata meal (1,295 kcal/kg), intermediate ( P < 0.05) for SE-canola meal (1,608 kcal/kg), and greatest ( P < 0.05) for ECP-canola meal (1,994 kcal/kg). The SID values of indispensable AA for ECP-canola meal were greater ( P < 0.05) than those for SE-canola meal or SE-carinata meal. The SID values of all indispensable AA (except Gly, Lys, and Trp) for SE-carinata meal were greater ( P < 0.05) than those for SE-canola meal. The SE-canola meal and SE-carinata meal did not differ in SID of Gly and Trp; however, SE-carinata meal had lower ( P < 0.05) SID of Lys than SE-canola meal. The results indicate that ECP-canola meal fed in this study could be a good source of AA and energy for broilers. Results also indicate that SE-carinata meal fed in this study could be an attractive AA source for broiler diet, but could benefit from Lys fortification due it its low SID Lys value.

Chemical and nutritional characteristics, and microbial degradation of rapeseed meal recalcitrant carbohydrates: A review

“…Previous research showed that expeller-pressed meal had more crude fiber compared to the cold-pressed meal ( 3 ). Another research demonstrated that solvent-extraction meal had more neutral detergent fiber and acid detergent fiber compared to the cold-pressed meal ( 4 ). Non-starch polysaccharides constitute 20–40% of RSM ( 5 , 6 ), which are represented by pectic polysaccharides (homogalacturonan, rhamnogalacturonan I, arabinan, galactomannan, and arabinogalactan), hemicelluloses (xyloglucan and glucuronoxylan), and cellulose ( 7 ).…”

Chemical composition and digestible and metabolizable energy contents in cold-pressed canola expellers fed to growing pigs

“…The low moisture content and short duration, generally help preserve protein quality ( Mauron, 1981 ; Newkirk et al, 2003a , 2003b ; Almeida et al, 2014 ). However, prolonged exposure to high temperatures or delayed cooling after extraction can negatively impact protein quality ( Khajali and Slominski, 2012 ; Adewole et al, 2016 ; Agyekum and Woyengo, 2022 ). Compared to expeller-pressed canola and conventional CM, CPCE typically retains more residual oil due to inefficient oil recovery from canola seeds ( Leming and Lember, 2005 ), which also dilutes the concentration of other components of CPCE.…”

Research note: Nutritive value of cold-pressed flaxseed meal for broiler chicken

“…The SBM fed in this study was obtained from a local feed mill and was included as a reference in the study. The N-free diet fed in another study ( Agyekum and Woyengo, 2022 ) conducted in the same facility and at same time that the current study was conducted was used to estimate basal endogenous AA losses for determining the SID of AA. The ratio of cornstarch to sugar, cellulose, and soybean oil in the test diets was identical to the N-free diet to allow calculation of energy retention of the test feedstuffs using the difference method.…”

“… 1 The N-free diet fed in the study of Agyekum and Woyengo (2022) was used to estimate endogenous AA losses, and to serve as basal diet for calculating energy retention of the CPFM by difference method. …”

“…Thereafter, the dried excreta, ileal digesta, test feedstuffs, and diet samples were finely ground using a centrifugal mill (model ZM200; Retsch GmbH, Haan, Germany) to pass through a 0.75 mm screen. All samples were analyzed for DM, gross energy ( GE ), and CP (N × 6.25) as described in the study of Agyekum and Woyengo (2022) . Samples were further analyzed as follows: test feedstuffs for neutral detergent fiber ( NDF ), ether extract ( EE ), and AA; diet and ileal digesta samples for AA and titanium content; and excreta samples for titanium content as described in the study of Agyekum and Woyengo (2022) .…”