PERFORM Publications

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Title		Authors	PubMed ID
1	Identification of Genes Involved in the Degradation of Lignocellulose Using Comparative Transcriptomics	Gruninger RJ; Tsang A; McAllister TA;	37149538 CSFG
2	Effect of ammonia fiber expansion-treated wheat straw and a recombinant fibrolytic enzyme on rumen microbiota and fermentation parameters, total tract digestibility, and performance of lambs.	Ribeiro GO; Gruninger RJ; Jones DR; Beauchemin KA; Yang WZ; Wang Y; Abbott DW; Tsang A; McAllister TA;	32369600 CSFG
3	Effects of a recombinant fibrolytic enzyme on fiber digestion, ruminal fermentation, nitrogen balance and total tract digestibility of heifers fed a high forage diet.	Ran T, Saleem AM, Shen Y, Ribeiro GO, Beauchemin KA, Tsang A, Yang W, McAllister TA	31251799 CSFG
4	The production and characterization of a new active lipase from Acremonium alcalophilum using a plant bioreactor.	Pereira EO, Tsang A, McAllister TA, Menassa R	23915965 CSFG
5	Improvement in Saccharification Yield of Mixed Rumen Enzymes by Identification of Recalcitrant Cell Wall Constituents Using Enzyme Fingerprinting.	Badhan A, Wang YX, Gruninger R, Patton D, Powlowski J, Tsang A, McAllister TA	26180803 CSFG
6	Identification of Genes Involved in the Degradation of Lignocellulose Using Comparative Transcriptomics.	Gruninger RJ, Reid I, Forster RJ, Tsang A, McAllister TA	28417376 CSFG
7	Discovery and characterization of family 39 glycoside hydrolases from rumen anaerobic fungi with polyspecific activity on rare arabinosyl substrates.	Jones DR, Uddin MS, Gruninger RJ, Pham TTM, Thomas D, Boraston AB, Briggs J, Pluvinage B, McAllister TA, Forster RJ, Tsang A, Selinger LB, Abbott DW	28588026 CSFG
8	Identification of novel enzymes to enhance the ruminal digestion of barley straw	Badhan A; Ribeiro GO; Jones DR; Wang Y; Abbott DW; Di Falco M; Tsang A; McAllister TA;	29621684 CSFG
9	New recombinant fibrolytic enzymes for improved in vitro ruminal fiber degradability of barley straw.	Ribeiro GO, Badhan A, Huang J, Beauchemin KA, Yang W, Wang Y, Tsang A, McAllister TA	30053012 CSFG

Title:	Effects of a recombinant fibrolytic enzyme on fiber digestion, ruminal fermentation, nitrogen balance and total tract digestibility of heifers fed a high forage diet.
Authors:	Ran T, Saleem AM, Shen Y, Ribeiro GO, Beauchemin KA, Tsang A, Yang W, McAllister TA
Link:	www.ncbi.nlm.nih.gov/pubmed/31251799?dopt=Abstract
DOI:	10.1093/jas/skz216
Publication:	Journal of animal science
Keywords:	beef heifers; fibrolytic enzyme; high forage diet; microbial protein synthesis; rumen pH and fermentation; total tract digestibility;
PMID:	31251799	Category:	J Anim Sci	Date Added:	2019-06-30
Dept Affiliation:	CSFG 1 Lethbridge Research and Development Centre, Lethbridge, AB, Canada. 2 Key Laboratory for Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, Hunan, China. 3 Department of Animal and Poultry Production, Faculty of Agriculture, South Valley University, Qena, Egypt. 4 College of Animal Science and Technology, Hebei Agricultural University, Baoding, China. 5 Department of Production Animal Health, Faculty of Veterinary Medicine, University of Calgary, Calgary, AB, Canada. 6 Centre for Structural and Functional Genomic, Concordia University, Montreal, QC, Canada.

Description:

Effects of a recombinant fibrolytic enzyme on fiber digestion, ruminal fermentation, nitrogen balance and total tract digestibility of heifers fed a high forage diet.

J Anim Sci. 2019 Jun 28;:

Authors: Ran T, Saleem AM, Shen Y, Ribeiro GO, Beauchemin KA, Tsang A, Yang W, McAllister TA

Abstract

A metabolism study was conducted using 8 ruminal cannulated beef heifers to investigate the effects of a recombinant fibrolytic enzyme (RFE; xylanase XYL10C) selected specifically for forage fed ruminants on ruminal pH, fermentation, nitrogen balance and total tract digestibility of heifers. The experiment was a cross-over design with 2 treatments and 2 periods. The two treatments were a basal diet containing 60% barley silage, 30% barley straw and 10% supplement (DM basis) without (control) or with RFE. The enzyme was sprayed onto the barley straw at a rate of 6.6 × 104 IU/kg DM 24 h before feeding. Each period comprised 2 weeks of diet adaptation and 1 week of sampling and data collection. Feed intake and total tract digestibility of DM, OM, NDF and ADF were unaffected by RFE. Ruminal pH including mean, minimum, maximum, and duration pH < 5.8 did not differ between treatments. Total VFA concentration, molar proportion of individual VFA and acetate to propionate ratio were also not affected by RFE. However, ruminal NH3-N concentration (P < 0.06) and endoglucanase activity (P < 0.08) in ruminal fluid tended to be higher with RFE. Nitrogen utilization and microbial protein synthesis were not affected by treatment. These results indicate that XYL10C did not improve fiber digestion in heifers fed a high forage diet, despite the fact that it was specifically selected for this trait in laboratory assays. However, the increased ruminal NH3-N concentration suggests it potentially increased ruminal proteolytic activity.

PMID: 31251799 [PubMed - as supplied by publisher]

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