A5083240065- Animal health and immunology
- Infant Nutrition and Health
- Digestive system and related health
- Animal Behavior and Welfare Studies
- Milk Quality and Mastitis in Dairy Cows
- Viral gastroenteritis research and epidemiology
- Ruminant Nutrition and Digestive Physiology
- Clinical Nutrition and Gastroenterology
- Fatty Acid Research and Health
- Reproductive Physiology in Livestock
- Diet, Metabolism, and Disease
- Animal Diversity and Health Studies
- Congenital Anomalies and Fetal Surgery
- Gastrointestinal disorders and treatments
- Animal Nutrition and Physiology
- Soil Mechanics and Vehicle Dynamics
- Food Waste Reduction and Sustainability
- Environmental Education and Sustainability
- Consumer Attitudes and Food Labeling
University of Guelph
2019-2024
University of Alberta
2018-2019
The composition of milk replacer (MR) for calves greatly differs from that bovine whole milk, which may affect gastrointestinal development young calves. In this light, the objective current study was to compare tract structure and function in response feeding liquid diets having a same macronutrient profile (e.g., fat, lactose, protein) first month life. Eighteen male Holstein (46.6 ± 5.12 kg; 1.4 0.50 d age at arrival; mean standard deviation) were housed individually. Upon arrival,...
The increasing availability of automated milk dispensers on dairy farms facilitates ad libitum supply but weaning calves from high allowances is challenging. This study evaluated effects gradual methods starter intake, growth, selected blood parameters and distress in fed during early post-weaning periods. Thirty-six male Holstein (n = 30) or crossbred 6) were individually housed days 2 to 14 age had access replacer (MR) teat buckets. From 15 84 age, grouped MR, starter, straw water feeders....
Most milk replacers (MR) contain more lactose compared with whole milk, which, when fed at a large meal size, could influence gut barrier function in calves. This study evaluated how replacing MR fat (on wt/wt basis) affects intestinal histomorphology and permeability neonatal dairy Thirty-four Holstein-Friesian bull calves were blocked by dam parity randomly assigned to 1 of 2 treatments (n = 17): high-lactose (46.1% lactose, 18.0% crude fat, 23.9% protein dry matter) or high-fat (HF; 39.9%...
The ratio of n-6 to n-3 fatty acid (FA) is between 2 and 10 times higher in milk replacer (MR) than whole milk, which may promote inflammation compromise the integrity intestinal epithelium. To evaluate how decreasing n-6:n-3 FA MR affects gastrointestinal (GIT) permeability inflammatory status, 30 dairy calves (2.8 ± 1.06 d age; mean standard deviation) were randomly assigned be fed an with 40:1 (CON; 29.3% crude fat DM; n = 15) or 6.5:1 (n-3; 29.1% 15). Calves 7.0 L/d meals. weighed fecal...
Milk replacers (MR) formulated to contain more lactose than whole milk could potentially reduce insulin sensitivity in dairy calves. This study evaluated how partially replacing MR with fat on a weight/weight basis affects glucose–insulin kinetics neonatal calves fed high quantities of MR. Thirty-four Holstein bull were blocked by dam parity (1.6 ± 0.3) and randomly assigned 1 2 treatments (n = 17): high-lactose (HL; 46.1% lactose, 18.0% crude fat, 23.9% protein dry matter basis) or (HF;...
Ingestion and absorption of greater quantities IgG are required to increase serum levels in newborn calves. This could be achieved by adding colostrum replacer (CR) maternal (MC). The objective this study was investigate whether low high-quality MC can enriched with bovine dried CR achieve adequate levels. Male Holstein calves (n = 80; 16/treatment) birth body weights (BW) 40 52 kg were randomly enrolled fed 3.8 L the following combinations: 30 g/L (C1), 60 (C2), 90 (C3), C1 551 g (60 g/L;...
The increasing availability of automated milk dispensers on dairy farms facilitates ad libitum supply but weaning calves from high allowances is a challenging process. This study evaluated different gradual methods for their impact starter intake and growth. Thirty-six Holstein (n = 30) or crossbred 6) bull were individually housed d 2–14 age had access to replacer teat buckets. From 15–84 age, grouped replacer, starter, straw water feeders. At 35, blocked (age breed), randomly assigned...
Most milk replacers (MR) contain more lactose than whole milk, which could potentially reduce insulin sensitivity and thus energy utilization in calves. This study evaluated effects of replacing by fat MR on glucose homeostasis neonatal dairy calves fed high quantities MR. Thirty-two male Holstein-Friesian (mean ± SE; 43.2 0.81 kg) were blocked dam parity BW, randomly assigned (n = 16) to a high-lactose (17.3% crude fat, 44.3% 23.2% CP) or high-fat (23.3% 37.3% 23.5% Calves individually...
Abstract Most milk replacers (MR) contain a higher lactose:fat ratio compared to whole milk, potentially affecting nutrient absorption and use by the calf. This study evaluated how body composition intestinal development were affected when lactose was replaced with fat in MR. Thirty-four calves (43.3 ± 0.8 kg) blocked (BW dam parity), randomly assigned high-lactose (43.8% 17.1% crude fat) or high-fat (37.9% 23.4% Calves fed pooled colostrum within 2 h (18% of metabolic weight (MBW)) 12 (9...