A5041495032- Ruminant Nutrition and Digestive Physiology
- Reproductive Physiology in Livestock
- Genetic and phenotypic traits in livestock
- Turfgrass Adaptation and Management
- Animal Nutrition and Physiology
- Agronomic Practices and Intercropping Systems
- Plant and fungal interactions
- Botanical Research and Chemistry
- Animal Behavior and Welfare Studies
- Effects of Environmental Stressors on Livestock
- Crop Yield and Soil Fertility
- Rabbits: Nutrition, Reproduction, Health
- Agroforestry and silvopastoral systems
- Plant Toxicity and Pharmacological Properties
- Nitrogen and Sulfur Effects on Brassica
- Meat and Animal Product Quality
- Probiotics and Fermented Foods
- Agriculture, Soil, Plant Science
- Muscle metabolism and nutrition
- Gout, Hyperuricemia, Uric Acid
- Genetics and Plant Breeding
- Wildlife Ecology and Conservation
- Agriculture Sustainability and Environmental Impact
- Animal health and immunology
- Botany and Plant Ecology Studies
Universitat Autònoma de Barcelona
2013-2022
Aix-Marseille Université
2012
The efficiency of N utilization in ruminants is typically low (around 25%) and highly variable (10% to 40%) compared with the higher other production animals. has implications for performance environment. Many efforts have been devoted improving ruminants, while major improvements our understanding requirements metabolism achieved, overall remains low. In general, maximal will only occur at expense some losses performance. However, optimal may be achieved through key mechanisms involved...
Six natural plant extracts and three secondary metabolites were tested at five doses (0, 0.3, 3, 30, 300 mg/L) two different pH (7.0 5.5) in a duplicate 9 × 5 2 factorial arrangement of treatments to determine their effects on vitro microbial fermentation using ruminal fluid from heifers fed high-concentrate finishing diet. Treatments garlic (GAR), cinnamon (CIN), yucca (YUC), anise (ANI), oregano (ORE), capsicum (CAP) pure cinnamaldehyde (CDH), anethole (ATL), eugenol (EUG). Each treatment...
Eight dual-flow continuous culture fermenters were used in four consecutive periods of 10 d to study the effects six natural plant extracts on ruminal protein degradation and fermentation profiles. Fermenters fed a diet with 52:48 forage:concentrate ratio (DM basis). Treatments no extract (CTR), 15 mg/kg DM mixture equal proportions all (MIX), 7.5 garlic (GAR), cinnamon (CIN), yucca (YUC), anise (ANI), oregano (ORE), or pepper (PEP). During adaptation period (d 1 through 8), samples for...
Four Holstein heifers (360 +/- 22 and 450 28 kg of BW in Exp. 1 2, respectively) fitted with ruminal trocars were used 4 x Latin square designs to evaluate the effects on microbial fermentation following: 1, no additive, alfalfa extract (30 g/d, AEX), a mixture cinnamaldehyde (0.18 g/d) eugenol (0.09 g/d; CIE1), AEX CIE1 combination; anise oil (2 g/d), capsicum (1 (0.6 (0.3 g/d). Heifers fed 90:10 concentrate:barley straw diet (16% CP; 25% NDF) for ad libitum intake. Each period consisted 15...
Low ruminal pH may occur when feeding high-concentrate diets. However, because the reduction in occurs at same time as amount of concentrate fed increases, changes observed rumen fermentation be attributed to or type substrate being fermented. Our objective was determine contribution and fermented after supplying a diet. Eight dual-flow, continuous culture fermenters (1,400 mL) were used 4 periods study effect diet on microbial fermentation. Temperature (39 degrees C), solid (5%/h), liquid...
An in vitro, batch incubator (Daisy(II)) was used to simplify the 3-step, vitro procedure (TSP) reduce cost and labor involved determination of intestinal digestion proteins. Four tests were conducted study effects type pepsin (P-7012 P-7000; Sigma, St. Louis, MO), bags for incubation samples (R510 F57; Ankom Technology, Fairport, NY), amount sample per bag (0.5, 1, 2, or 5 g), number bottle (5, 15, 20, 30 bags) on estimated A soybean meal heated at 170 degrees C 0, 0.5, 4, 6, 8 h all...
Twenty crossbred heifers (101 ± 4.5 kg BW) were used to examine the effects of protein concentration and degradability on performance, ruminal fermentation, nutrient digestion, N balance, urinary excretion purine derivatives. Heifers offered concentrate barley straw for ad libitum consumption. Two concentrations (17 vs 14%, DM basis) two sources differing in (58 42% CP soybean meal treated meal, respectively) tested. The experiment was divided into four consecutive 28-d periods evaluate age...
Four ruminally fistulated Holstein heifers (BW = 385 +/- 6.2 kg) were used in a 4 x Latin square experiment to determine the effect of feeding frequency on intake, water consumption, ruminal fermentation, and animal behavior. The treatments consisted different frequencies: a) once daily (T1); b) twice (T2); c) 3 times (T3); d) (T4). Heifers offered ad libitum access concentrate barley straw. Feeding did not affect DMI (P >0.10), but consumption tended increase linearly as increased 0.08)....
The objective of the present study was to examine effects increasing number heifers per concentrate feeding place on performance, behavior, welfare indicators, and ruminal fermentation feedlot heifers. Seventy-two Friesian were used in a factorial arrangement, with 3 treatments blocks similar BW. Treatments consisted 2 (T2), 4 (T4), or 8 (T8) each feeder (8 heifers/pen). Concentrate straw fed at 0830 h individual feeders that allowed ad libitum consumption. During 6 periods 28 d each, DMI...
In Exp. 1, four Holstein heifers (112 ± 5.5 kg BW) fitted with ruminal cannulas were used in a 4 × Latin square to evaluate the effects of N source on fermentation and urinary excretion purine derivatives. A 2 factorial arrangement treatments was used; factors type protein (soybean meal, SBM, vs 50:50 mixture fish meal corn gluten FMCGM) partial substitution by urea (with without). Heifers allowed consume concentrate barley straw an ad libitum basis. Barley straw:concentrate ratio (12:88)...