Rumen fermentation and microbial yield of high- or low-protein diets containing ground soybean seeds or homemade rapeseed expellers evaluated with RUSITEC

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Rumen fermentation and microbial yield of high- or low-protein diets containing ground soybean seeds or homemade rapeseed expellers evaluated with RUSITEC. / Guadagnin, M.; Tagliapietra, F.; Cattani, M.; Schiavon, S.; Worgan, H. J.; Belanche, A.; Newbold, C. J.; Bailoni, L.

Yn: Canadian Journal of Animal Science, Cyfrol 93, Rhif 3, 01.09.2013, t. 363-371.

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Harvard

Guadagnin, M, Tagliapietra, F, Cattani, M, Schiavon, S, Worgan, HJ, Belanche, A, Newbold, CJ & Bailoni, L 2013, 'Rumen fermentation and microbial yield of high- or low-protein diets containing ground soybean seeds or homemade rapeseed expellers evaluated with RUSITEC', Canadian Journal of Animal Science, cyfrol. 93, rhif 3, tt. 363-371. https://doi.org/10.4141/cjas2013-007

APA

Guadagnin, M., Tagliapietra, F., Cattani, M., Schiavon, S., Worgan, H. J., Belanche, A., Newbold, C. J., & Bailoni, L. (2013). Rumen fermentation and microbial yield of high- or low-protein diets containing ground soybean seeds or homemade rapeseed expellers evaluated with RUSITEC. Canadian Journal of Animal Science, 93(3), 363-371. https://doi.org/10.4141/cjas2013-007

Vancouver

Guadagnin M, Tagliapietra F, Cattani M, Schiavon S, Worgan HJ, Belanche A et al. Rumen fermentation and microbial yield of high- or low-protein diets containing ground soybean seeds or homemade rapeseed expellers evaluated with RUSITEC. Canadian Journal of Animal Science. 2013 Sep 1;93(3):363-371. https://doi.org/10.4141/cjas2013-007

Author

Guadagnin, M. ; Tagliapietra, F. ; Cattani, M. ; Schiavon, S. ; Worgan, H. J. ; Belanche, A. ; Newbold, C. J. ; Bailoni, L. / Rumen fermentation and microbial yield of high- or low-protein diets containing ground soybean seeds or homemade rapeseed expellers evaluated with RUSITEC. Yn: Canadian Journal of Animal Science. 2013 ; Cyfrol 93, Rhif 3. tt. 363-371.

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@article{78dca72ae7ff4f5ea7a17ee80d7bc489,
title = "Rumen fermentation and microbial yield of high- or low-protein diets containing ground soybean seeds or homemade rapeseed expellers evaluated with RUSITEC",
abstract = "This experiment aimed to compare diets containing two crude protein (CP) concentrations [147 or 109 g kg−1 in dry matter (DM)] and two protein sources containing ground soybean seed (GSS) or rapeseed expeller (RSE). Diets were compared in terms of digestibility, volatile fatty acids (VFA) and ammonia concentrations, and N flows, using rumen simulation fermenters (RUSITEC). Home−made RSE (CP=287 g kg−1 dry matter and ether extract=199 g kg−1 DM) was produced using equipment adopted by small farms. Reduction of dietary CP content did not affect digestibility, except for a reduction of N apparent digestibility (P<0.01), but increased efficiency of N utilization (P=0.001) without affecting microbial N production (P=0.82). Total VFA concentration was not (P=0.56) influenced by CP content. Compared with GSS, RSE exhibited a greater neutral detergent fibre digestibility (P<0.01), it did not influence total volatile fatty acids (VFA; P=0.10) but decreased the proportions of acetate and propionate on total VFA (P<0.001) and increased those of butyrate and branched-chain VFA (P<0.001). Microbial efficiency was comparable for GSS and RSE. Results suggest that reduction of dietary CP concentration in DM did not impair in vitro digestibility and microbial growth. The protein mixture containing homemade RSE showed in vitro fermentative properties and microbial growth comparable with those of GSS.",
keywords = "rapeseed expellers, RUSITEC, microbial growth, rumen degradability",
author = "M. Guadagnin and F. Tagliapietra and M. Cattani and S. Schiavon and Worgan, {H. J.} and A. Belanche and Newbold, {C. J.} and L. Bailoni",
year = "2013",
month = sep,
day = "1",
doi = "10.4141/cjas2013-007",
language = "English",
volume = "93",
pages = "363--371",
journal = "Canadian Journal of Animal Science",
issn = "0008-3984",
publisher = "Agricultural Institute of Canada",
number = "3",

}

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TY - JOUR

T1 - Rumen fermentation and microbial yield of high- or low-protein diets containing ground soybean seeds or homemade rapeseed expellers evaluated with RUSITEC

AU - Guadagnin, M.

AU - Tagliapietra, F.

AU - Cattani, M.

AU - Schiavon, S.

AU - Worgan, H. J.

AU - Belanche, A.

AU - Newbold, C. J.

AU - Bailoni, L.

PY - 2013/9/1

Y1 - 2013/9/1

N2 - This experiment aimed to compare diets containing two crude protein (CP) concentrations [147 or 109 g kg−1 in dry matter (DM)] and two protein sources containing ground soybean seed (GSS) or rapeseed expeller (RSE). Diets were compared in terms of digestibility, volatile fatty acids (VFA) and ammonia concentrations, and N flows, using rumen simulation fermenters (RUSITEC). Home−made RSE (CP=287 g kg−1 dry matter and ether extract=199 g kg−1 DM) was produced using equipment adopted by small farms. Reduction of dietary CP content did not affect digestibility, except for a reduction of N apparent digestibility (P<0.01), but increased efficiency of N utilization (P=0.001) without affecting microbial N production (P=0.82). Total VFA concentration was not (P=0.56) influenced by CP content. Compared with GSS, RSE exhibited a greater neutral detergent fibre digestibility (P<0.01), it did not influence total volatile fatty acids (VFA; P=0.10) but decreased the proportions of acetate and propionate on total VFA (P<0.001) and increased those of butyrate and branched-chain VFA (P<0.001). Microbial efficiency was comparable for GSS and RSE. Results suggest that reduction of dietary CP concentration in DM did not impair in vitro digestibility and microbial growth. The protein mixture containing homemade RSE showed in vitro fermentative properties and microbial growth comparable with those of GSS.

AB - This experiment aimed to compare diets containing two crude protein (CP) concentrations [147 or 109 g kg−1 in dry matter (DM)] and two protein sources containing ground soybean seed (GSS) or rapeseed expeller (RSE). Diets were compared in terms of digestibility, volatile fatty acids (VFA) and ammonia concentrations, and N flows, using rumen simulation fermenters (RUSITEC). Home−made RSE (CP=287 g kg−1 dry matter and ether extract=199 g kg−1 DM) was produced using equipment adopted by small farms. Reduction of dietary CP content did not affect digestibility, except for a reduction of N apparent digestibility (P<0.01), but increased efficiency of N utilization (P=0.001) without affecting microbial N production (P=0.82). Total VFA concentration was not (P=0.56) influenced by CP content. Compared with GSS, RSE exhibited a greater neutral detergent fibre digestibility (P<0.01), it did not influence total volatile fatty acids (VFA; P=0.10) but decreased the proportions of acetate and propionate on total VFA (P<0.001) and increased those of butyrate and branched-chain VFA (P<0.001). Microbial efficiency was comparable for GSS and RSE. Results suggest that reduction of dietary CP concentration in DM did not impair in vitro digestibility and microbial growth. The protein mixture containing homemade RSE showed in vitro fermentative properties and microbial growth comparable with those of GSS.

KW - rapeseed expellers

KW - RUSITEC

KW - microbial growth

KW - rumen degradability

UR - http://hdl.handle.net/2160/12087

U2 - 10.4141/cjas2013-007

DO - 10.4141/cjas2013-007

M3 - Article

VL - 93

SP - 363

EP - 371

JO - Canadian Journal of Animal Science

JF - Canadian Journal of Animal Science

SN - 0008-3984

IS - 3

ER -

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