A5048000807- Ruminant Nutrition and Digestive Physiology
- Reproductive Physiology in Livestock
- Genetic and phenotypic traits in livestock
- Meat and Animal Product Quality
- Odor and Emission Control Technologies
- Effects of Environmental Stressors on Livestock
- Soil and Water Nutrient Dynamics
- Plant and fungal interactions
- Muscle metabolism and nutrition
- Animal health and immunology
- Animal Nutrition and Physiology
- Wastewater Treatment and Nitrogen Removal
- Dietary Effects on Health
- Agriculture Sustainability and Environmental Impact
- Circadian rhythm and melatonin
- Biofuel production and bioconversion
- Climate Change and Health Impacts
- Pasture and Agricultural Systems
- Animal Nutrition and Health
- Animal Behavior and Welfare Studies
- Moringa oleifera research and applications
- Peanut Plant Research Studies
- Bioenergy crop production and management
The University of Melbourne
2020-2025
Ecosystem Sciences
2024
Agriculture and Agri-Food Canada
2019
This study aimed to 1) Establish relationships between feed conversion efficiency (FCE; live weight gain/intake) and several biomarkers in pigs using blood hair samples, 2) Investigate the relative FCE performance of from maternal vs. terminal genetic lines fed high low energy diets. 80 male (Large White x Landrace) were for 56 days. The line diet had 5% 15% higher than diet, respectively. Blood nitrogen isotopic fractionation (Δ15N; animal δ15N – δ15N) explained 34% more variation FCE,...
The objective of this study was to investigate the effects milk allowances equal 526 g/d as moderate (MOD) versus 790 dry matter high (HI), and starter diets containing 18% or 23% crude protein (CP), on growth performance, blood metabolites, purine derivative (PD) excretion in urine dairy calves. A total 52 female Holstein calves (40.8 kg body weight) were randomly assigned experimental diets. treatments (1) CP diet (MOD-18CP); (2) MOD (MOD-23CP); (3) (HI-18CP); (4) HI (HI-23CP). Calves had...
Lipopolysaccharides (LPS) can disrupt the barrier function of mammary epithelial cells, leading to mastitis. The protective effects melatonin (MT) have been demonstrated against various infections, but underlying mechanism remains unclear in LPS-induced bovine This study, therefore, aimed investigate modulatory effect on inflammation cells (BMECs), its influence disruption circadian rhythms triggered by this inflammation, and potential molecular mechanisms. BMECs extracted from lactating...
This study investigated the effects of feeding dairy calves starter diets containing 19% or 22% crude protein (CP) content on a dry matter basis and either supplemented not with soybean oil (SBO, 0 vs. 3%, basis) growth performance, digestibility, urinary nitrogen, purine derivatives (PD) excretion. A total 48 female Holstein (mean 39.8 kg body weight) were randomly distributed to experimental in 2 × factorial arrangement treatments. The 4 dietary treatments (1) diet without SBO supplement...
(1) Aim: This study aimed to evaluate the fermentation quality, chemical composition, aerobic stability, in vitro digestibility, and rumen degradation characteristics of silage mixtures with different ratios sweet sorghum (SS) aerial parts licorice (LC). (2) Methods: Five were produced on a dry matter (DM) basis: (i) 0%SS + 100%LC (0%SS); (ii) 25%SS 75%LC (25%SS); (iii) 50%SS 50%LC (50%SS); (iv) 75%SS 25%LC (75%SS); (v) 100%SS 0%LC (100%SS). First, composition silages was measured before...
Abstract Two 10-day in vitro experiments were conducted to investigate the relationship between nitrogen (N) isotope discrimination ( δ 15N) and ammonia (NH 3 ) emissions from sheep manure. In Exp. 1, three different manure mixtures set up: control (C); C mixed with lignite (C + L); grape marc (GM), 5, 4 5 replications, respectively. For C, urine faeces collected fed a diet of 550 g lucerne hay/kg, 400 barley grain/kg 50 faba bean/kg; for L, 100 ground added each incubation system at start...
This study investigated the effects of replacing maize silage (MZS) with high-sugar sorghum (HSS) or forage (FSS) without additional grain supplement in diets dairy cows on nutrient digestibility, milk composition, nitrogen (N) use, and rumen fermentation. Twenty-four Chinese Holstein (545 ± 42.8 kg; 21.41 0.62 kg yield; 150 5.6 days milk) were randomly assigned to three dietary treatments (n = 8 cows/treatment). The fed ad libitum total mixed rations containing (dry matter basis) either 40%...
Animal nitrogen (N) partitioning is a key parameter for profitability and sustainability of ruminant production systems, which may be predicted from N isotopic discrimination or fractionation (Δ15N). Both animal genetics feeding level interact impact on partitioning. Therefore, this study aimed to assess the interactive effects genetic merit (G) feed allowance (F) Δ15N in sheep. The sheep were drawn two levels G (high vs. low G; based New Zealand Sheep Improvement Limited...
The study investigated the effects of feeding mixtures alfalfa (AF) and sweet sorghum (SS) at different ratios silages in terms physiological status blood rumen, rumen microbiota lambs. A total 30 four-month-old male Karakul lambs with 25.5 ± 1.4 kg mean initial body weight were randomly allocated to five groups, six each group. Five experimental diets containing 40% one AF−SS mixed (containing 0%, 20%, 40%, 60%, 80% AF on a fresh basis, respectively) 60% other ingredients formulated....
Abstract This research aimed to develop biomarkers for estimating ammonia (NH 3 ) emissions from dairy cattle manure over a 15-day in vitro incubation system. To generate different levels of NH emissions, the experiment utilized four experimental groups: 1 urinary nitrogen (U) faecal (F) ratio (CT), 2 U F (2U1F), and CT 2U1F with lignite application (CT + L L, respectively). The addition ruminant enhance environmental sustainability through its beneficial properties. Three biomarkers, (N)...
Urinary nitrogen (N) excretion (UN) as a proportion of N intake (NI; UN/NI) is major determinant from ruminants and could be predicted the isotopic discrimination occurring between dietary animal proteins (Δ 15 N). This study investigated usefulness Δ other plasma biomarkers to reflect changes in UN/NI sheep offered different levels urea. Eighteen Merino rams (age, 1–2 years; live weight, 41 ± 3 kg) were allocated three treatments for balance study. Treatments control (C), + 0.5% urea...