A5059153561- Ruminant Nutrition and Digestive Physiology
- Reproductive Physiology in Livestock
- Genetic and phenotypic traits in livestock
- Animal Nutrition and Physiology
- Phytase and its Applications
- Turfgrass Adaptation and Management
- Food composition and properties
- Animal health and immunology
- Muscle metabolism and nutrition
- Rabbits: Nutrition, Reproduction, Health
- Meat and Animal Product Quality
- Microbial Metabolites in Food Biotechnology
- Protein Hydrolysis and Bioactive Peptides
- Plant and fungal interactions
- Biofuel production and bioconversion
- Animal Nutrition and Health
- Crop Yield and Soil Fertility
- Nuts composition and effects
- Agroforestry and silvopastoral systems
- Agriculture Sustainability and Environmental Impact
- Agronomic Practices and Intercropping Systems
- Bioenergy crop production and management
- Botanical Research and Chemistry
- Gut microbiota and health
- Infant Nutrition and Health
Lethbridge Research and Development Centre
2016-2025
Agriculture and Agri-Food Canada
2016-2025
Inner Mongolia Normal University
2021-2023
Guizhou University
2021
Inner Mongolia Agricultural University
2021
University of Calgary
2021
Lethbridge College
2014-2019
University of Lethbridge
2019
Shanxi Agricultural University
2007-2018
University of Saskatchewan
2010-2017
Two studies were conducted to determine whether a bacterial direct-fed microbial (DFM) alone or with yeast could minimize the risk of acidosis and improve feed utilization in feedlot cattle receiving high-concentrate diets. Eight ruminally cannulated steers, previously adapted diet, used crossover designs study effects DFM on intake, ruminal pH, fermentation, blood characteristics, site extent digestion, protein synthesis. Steers provided ad libitum access diet containing steam-rolled...
Cinnamaldehyde (CIN), a natural chemical compound found in the bark of cinnamon trees, can alter rumen fermentation by inhibiting selected ruminal microbes, and consequently, may improve growth performance feed efficiency animals. The objective this study was to evaluate effects supplementing diet feedlot cattle with CIN on intake, performance, carcass characteristics, blood metabolites. Seventy yearling steers (BW = 390 ± 25.2 kg) were assigned randomized complete block design 5 treatments:...
To determine the effects of removal forage in high-concentrate diets on rumen fermentation conditions and bacterial populations using culture-independent methods.Detectable bacteria parameters were measured solid liquid fractions digesta from cattle fed two dietary treatments, high concentrate (HC) without (HCNF). Comparison showed that duration time spent below pH 5·2 osmolality higher HCNF treatment. Simpson's index 16S PCR-DGGE images a greater diversity dominant species Real-time qPCR...
Beef cattle in North America frequently receive an antibiotic injection after feedlot placement to control and manage bovine respiratory disease. The potential collateral effect of these antibiotics on the microbiome is largely unknown. Therefore, we determined longitudinal impact two commonly administered veterinary antibiotics, oxytetracycline tulathromycin, fecal nasopharyngeal (NP) microbiota beef that were transported a feedlot. We also report have several resistance determinants both...
Abstract Background Clostridium butyricum (CB) is a probiotic that can regulate intestinal microbial composition and improve meat quality. Rumen protected fat (RPF) has been shown to increase the dietary energy density provide essential fatty acids. However, it still unknown whether supplementation with CB RPF exerts beneficial effects on growth performance nutritional value of goat meat. This study aimed investigate performance, quality, oxidative stability, finishing goats. Thirty-two...
The use of hemp as a forage source in livestock diets has been less studied because bioactive residues animal tissues may pose risk to consumers. This study investigated the effects partial substitution alfalfa hay (AH) with (HF) growing goat on growth performance, carcass traits, ruminal fermentation characteristics, rumen microbial communities, blood biochemistry, and antioxidant indices. Forty Xiangdong black goats body weight (BW) 7.82 ± 0.57 kg (mean SD) were grouped by BW randomly...
Effects of extent barley rolling on chewing activities, ruminal fermentation, and site digestion were evaluated for feedlot finishing cattle diets in a 4 × Latin square design. Four Jersey steers (452 kg), cannulated the rumen duodenum, used. Barley grain was temper-rolled to four extents: coarse, medium, medium-flat, flat, which expressed as processing index (PI, volume weight after percentage its before processing, DM basis) equivalent 82, 75, 70, 65%, respectively. Diets consisted 9.7%...
The effects of an exogenous enzyme preparation, the application method and feed type on ruminal fermentation microbial protein synthesis were investigated using rumen simulation technique (Rusitec). Steam-rolled barley grain chopped alfalfa hay sprayed with water (control, C), preparation a predominant xylanase activity (EF), or autoclaved (AEF) 24 h prior to feeding, was supplied in buffer infused into Rusitec (EI). Microbial N incorporation measured ( 15 NH 4 ) 2 SO buffer. Spent bags...
The effects of supplementing a dairy cow diet with incremental levels fibrolytic enzyme preparation (preparation B) from Trichoderma longibrachiatum on the rumen microbial population were investigated. Two cows fitted cannulae each fed containing barley-based concentrate (52%), maize silage (29%), and chopped alfalfa hay (19%), supplemented 0, 1, 2, 5, or 10 L B per tonne dry matter (DM). Preparation stimulated numbers total viable bacteria in quadratic manner (P < 0.05), to approximately...
The objective of this study was to determine if cinnamaldehyde (CIN) could be used improve feed intake, digestion, and immune status in growing beef heifers fed high-concentrate diets. experiment designed as a 4 × Latin square using ruminally duodenally cannulated with treatments: control (no CIN added), 400 mg/d (low), 800 (medium), 1,600 (high), four 21-d periods. Feed rumen pH fermentation characteristics, site extent microbial N synthesis, blood metabolites, acute phase protein response...
Abstract Future growth in demand for meat and milk, the socioeconomic environmental challenges that farmers face, represent a “grand challenge humanity”. Improving digestibility of crop residues such as straw could enhance sustainability ruminant production systems. Here, we investigated if transfer rumen contents from bison to cattle alter microbiome total tract barley straw-based diet. Beef heifers were adapted diet 28 days prior experiment. After 46 days, ~70 percent removed each heifer...
Abstract Background Brewers’ spent grain (BSG) typically contains 20% – 29% crude protein (CP) with high concentrations of glutamine, proline and hydrophobic non-polar amino acid, making it an ideal material for producing value-added products like bioactive peptides which have antioxidant properties. For this study, was extracted from BSG, hydrolyzed 1% alcalase flavourzyme, the generated hydrolysates (AlcH FlaH) showing activities. This study evaluated effects AlcH FlaH on gas production,...