Determination of the energy content and amino acid digestibility of double-low rapeseed cakes fed to growing pigs

Li, P.L.; Wu, Fei; Chen, Y.F.; Wang, J.R.; Guo, Panpan; Li, Z.C.; Liu, L.; Lai, Changhua

doi:10.1016/j.anifeedsci.2015.10.012

Cited by 20 publications

(23 citation statements)

References 38 publications

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“…The DE and ME values of the four ingredients measured in the current experiment are similar to those obtained in our previous studies [2, 3, 17, 18]. In agreement with the values of NE to ME ratio in the present study and in Sauvant et al [28], the NE value of corn measured in Exp.…”

Section: Discussionsupporting

confidence: 93%

Net energy of corn, soybean meal and rapeseed meal in growing pigs

et al. 2017

J Animal Sci Biotechnol

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BackgroundTwo experiments were conducted to estimate the net energy (NE) of corn, soybean meal, expeller-pressed rapeseed meal (EP-RSM) and solvent-extracted rapeseed meal (SE-RSM) using indirect calorimetry and to validate the NE of these four ingredients using pig growth performance.MethodsIn Exp.1, 24 barrows (initial BW = 36.4 ± 1.6 kg) were allotted to 1 of 4 diets which included a corn basal diet, a corn-soybean meal basal diet and two rapeseed meal diets containing 20% EP-RSM (9.5% ether extract) or SE-RSM (1.1% ether extract) substituted for corn and soybean meal. The design allowed the calculation of NE values of corn, soybean meal and rapeseed meals according to the difference method. In Exp.2, 175 growing pigs (initial BW = 36.0 ± 5.2 kg) were fed 1 of 5 diets for 28 d, with five pigs per pen and seven replications (pens) per treatment in order to validate the measured energy values. Diets were a corn-soybean meal diet and four diets including 10% or 20% EP-RSM and 10% or 20% SE-RSM.ResultsThe NE of corn, soybean meal, EP-RSM and SE-RSM were 12.46, 11.34, 11.71 and 8.83 MJ/kg DM, respectively. The NE to ME ratio of corn (78%) was similar to tabular values, however, the NE to ME ratios of soybean meal (70%) and rapeseed meal (76%) were greater than tabular values. The greater NE value in EP-RSM than in SE-RSM is consistent with its higher EE content. Increasing EP-RSM or SE-RSM did not affect the growth performance of pigs and the caloric efficiency of NE was comparable for all diets.ConclusionsThe NE of EP-RSM was similar to soybean meal, and both were greater than SE-RSM. The DE, ME and NE values measured in Exp.1 are confirmed by results of Exp. 2 with comparable caloric efficiencies of DE, ME or NE for all diets.

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Section: Discussionsupporting

confidence: 93%

Net energy of corn, soybean meal and rapeseed meal in growing pigs

et al. 2017

J Animal Sci Biotechnol

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“…The concentration of individual AA in each tested feedstuff was within the relative standard deviation presented in NRC [ 25 ]. The values of endogenous CP and AA losses presented in Table 3 were comparable with the values from previous studies that also conducted in our lab [ 20 , 24 , 27 ].…”

Section: Discussionsupporting

confidence: 87%

“…The nitrogen-free diet used in the 3 studies have same formulations. These data were comparable with the values from previous studies that also conducted in our lab [ 20 , 24 , 27 ].…”

Section: Tablesupporting

confidence: 92%

“…Determination of AA was conducted according to Li et al [ 20 ] where samples were hydrolyzed with 6 N HCl at 110°C for 24 h and then analyzed using an Amino Acid Analyzer (Hitachi L-8900, Tokyo, Japan). Sulfur-AA (Met and Cys) content of digesta, diets, and feedstuffs was determined using cold performic acid oxidation overnight and hydrolyzed with 7.5 N HCl at 110°C for 24 h before measurement using an Amino Acid Analyzer (Hitachi L-8900, Japan).…”

Section: Methodsmentioning

confidence: 99%

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Effect of keratinase on ileal amino acid digestibility in five feedstuffs fed to growing pigs

Huang

Zang

et al. 2018

Asian-Australas J Anim Sci

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ObjectiveThis study was conducted to evaluate the effect of keratinase (KE) on the apparent ileal digestibility (AID) and standardized ileal digestibility (SID) of amino acids (AA) in rice bran, cottonseed meal (CSM), rapeseed meal (RSM), corn distillers dried grains with solubles (DDGS), and peanut meal (PNM).MethodsTwelve crossbred barrows (Duroc×Landrace×Yorkshire, 50.5±1.4 kg body weight [BW]) fitted with T-cannulas at the terminal ileum were allotted to a 12×6 Youden Square design with 12 diets and 6 periods. The treatment diets included rice bran, CSM, RSM, corn DDGS, PNM, or corn-soybean meal (cSBM) supplemented with 0.05% KE or not. Diets were given to pigs at a level of 3% BW in two equal meals. The endogenous AA losses were the mean results of three previously experiments determined by a same nitrogen-free diet fed to pigs. Pigs had free access to water during the experiment.ResultsThe KE supplementation improved (p<0.05) the AID and SID of Met, Thr, Val, Asp, Cys, and Tyr in rice bran. Inclusion of KE increased (p<0.05) the AID and SID of Met and Val in CSM. The KE supplementation decreased (p<0.05) the AID and SID of His in RSM and all measured AA except for Arg, Met, Trp, Val, Gly, and Pro in corn DDGS. There was an increase (p<0.05) in AID and SID of Leu, Ile, Met, Ala, Cys, Ser, and Tyr in PNM supplemented with KE compared with that without KE. Inclusion of KE increased (p<0.05) the AID and SID of crude protein, Leu, Ile, Phe, Thr, Asp, and Ser in cSBM.ConclusionThis study indicated that KE had different effects on ileal AA digestibility of feedstuffs for growing pigs, which can give some usage directions of KE in swine feed containing those detected feedstuffs.

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“…Amino acid analysis of diets, and digesta, was conducted according to Li et al (). For most AA except Met, Cys and Trp, samples were hydrolysed with 6 N HCl at 110°C for 24 hr and then analysed using an Amino Acid Analyzer (Hitachi L‐8900).…”

Section: Materialsandmethodsmentioning

confidence: 99%

Effects of dietary fibre level and body weight of pigs on nutrient digestibility and available energy in high‐fibre diet based on wheat bran or sunflower meal

Lyu

Zang

Lai

et al. 2019

Animal Physiology Nutrition

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The objectives of this study were (a) to investigate the effect of body weight (BW) on available energy in fibre‐rich diets containing two NDF levels; and (b) to evaluate the effect of fibre type and NDF level on AA digestibility. In Exp. 1, barrows (24 at 33.4 ± 1.1 kg; 24 at 86.8 ± 3.3 kg) were randomly allotted to 4 diets containing a high protein basal (HPB), a low protein basal (LPB), 70% HPB + 30% wheat bran (WB) (HPB‐WB) and 70% LPB + 30% sunflower meal (SFM) (LPB‐SFM). In Exp. 2, barrows (24 at 33.5 ± 1.8 kg; 24 at 87.0 ± 3.8 kg) were randomly allotted to 4 diets containing no SFM with 12% NDF (SFM0LF), no SFM with 16% NDF (SFM0HF), 24% SFM with 12% NDF (SFM24LF) and 24% SFM with 16% NDF (SFM24HF). In Exp. 3, twelve barrows (35.5 ± 3.4 kg) fitted with T‐cannulas were allotted to two 6 × 4 Youden square design with 6 diets (4 same diets as in Exp. 2 and 2 nitrogen‐free diets). The concentration of DE, ME and ATTD of GE, CP, NDF and ADF in diets was greater (p < .01) when fed to 90 kg pigs compared with 30 kg pigs. The ME in ingredients was not affected by BW. The ATTD of NDF was negatively correlated with the CF (r = −.98; p < .01), ADF (r = −.99; p < .01) and ADL content (r = −.96; p < .01). The ME of diets was negatively correlated with the ATTD of CF (r = −.98; p < .01). The addition of SFM increased the standardized ileal digestibility (SID) of Met (p < .05). In conclusion, diets rich in fibre had different nutritional values at different pig weight stages. The AA digestibility depends mainly on chemical composition of diets.

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Determination of the energy content and amino acid digestibility of double-low rapeseed cakes fed to growing pigs

Cited by 20 publications

References 38 publications

Net energy of corn, soybean meal and rapeseed meal in growing pigs

Net energy of corn, soybean meal and rapeseed meal in growing pigs

Effect of keratinase on ileal amino acid digestibility in five feedstuffs fed to growing pigs

Effects of dietary fibre level and body weight of pigs on nutrient digestibility and available energy in high‐fibre diet based on wheat bran or sunflower meal

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