A5091867193- Ruminant Nutrition and Digestive Physiology
- Reproductive Physiology in Livestock
- Genetic and phenotypic traits in livestock
- Pasture and Agricultural Systems
- Livestock Management and Performance Improvement
- Educational Technology in Learning
- Agricultural and Food Production Studies
- Knowledge Societies in the 21st Century
- Agroforestry and silvopastoral systems
- Plant nutrient uptake and metabolism
- Veterinary Equine Medical Research
- Animal health and immunology
- Rabbits: Nutrition, Reproduction, Health
- Turfgrass Adaptation and Management
- E-Learning and Knowledge Management
- Plant Taxonomy and Phylogenetics
- Agriculture, Soil, Plant Science
University of Concepción
2018-2024
Austral University of Chile
2010-2019
Plantago lanceolata L. (plantain) increases herbage dry matter (DM) production and quality during warm conditions due to its deep roots drought tolerance reduces nitrogen losses in grazing systems compared traditional pastures. However, plantain density usually declines after the third growing season, mainly defoliation management. The effects of frequency intensity on water-soluble carbohydrate (WSC) reserves below-ground plant responses need further research optimize strategies for...
Traditional pastures in temperate regions face limitations such as reduced growth and nutritional quality during the summer season. Plantain ( P . lanceolata L.) offers advantages like increased yield decreased nitrogen losses from grazing ruminants. Effective management is essential for pasture health, defoliation frequency intensity play a pivotal role. This study aimed to evaluate plantain’s regrowth, yield, morpho-physiological chemical responses under different frequencies intensities,...
The aim of this study was to evaluate the short-term effects daily herbage allowance (DHA, defined as product pre-grazing mass and offered area per animal) on pasture conditions milk production Holstein-Friesian dairy cows. Forty-four early lactation cows were randomly assigned one four treatments in a 2 × factorial design that tested two levels DHA (17 25 kg DM/cow.day) maize silage supplementation (MSS, 4.5 9 over 77-day period. Low decreased post-grazing from 1546 1430 DM/ha compressed...
Grazing ruminant systems can be sustainably intensified by improving efficiency while reducing their environmental impact. The objective of the present study was to examine potential pastures differing in water-soluble carbohydrates (WSC) and crude protein (CP) contents affect milk production composition as well behaviour cows grazing perennial ryegrass (PRG) swards. By modifying nitrogen (N) fertilisation rate (83 250 kg/ha per year) defoliation frequency (two or three leaves tiller)...
Daily herbage allowance is recognised as the main tool to control pasture utilisation and milk production per cow. The aim of present study was evaluate long-term effects daily (DHA) on characteristics dairy cows. Forty-four cows were randomly assigned one four treatments in a 2 × factorial design by considering two levels DHA (20 30 kg DM/cow.day) types supplements (high-moisture maize silage) over 77-day period. Pre- post-grazing masses, vertical distribution mass, species density,...
V. Merino, O. Balocchi, and
Stocking rate Dairy cowsA deeper knowledge on the effects of herbage allowance (HA) pasture characteristics and animal performance is necessary to improve efficiency dairy production systems based intensive grazing pasture.The objectives this study were assess effect two levels HA milk during a three years period.Holstein Friesian cows selected from herd owned by Universidad Austral de Chile randomly assigned one homogeneous groups.Each group was managed with different (high or low),...
The objective of the present study was to characterize nutritional composition, fatty acid profile, and IgG concentration milk produced by Chilean Corralero horse (CCH) mares from breeding farms located in southern Chile. Forty-five samples were collected three biggest (coded as A, B C) specialized selection CCH Chile (15 sampled per farm). Farms differed days (DIM). A negative association between DIM ash, protein, solids, saturated acids (SFA), gross energy (GE) found, whereas had a...
Increasing demands for land is necessitating the optimisation of grazing used livestock production. Hormonal growth promoter implants (HGPI) are widely to improve cattle performance and thus land-use efficiency. However, there limited information on their efficacy in systems. Forty steers, 10 each breed (Angus, Hereford, Holstein, Overo Colorado), had rates monitored 85 days after which half received HGPI continued as a control. Growth were an additional 61 between groups compared. Implants...
The aim was to determine the effect of herbage allowance (HA) and supplement type (ST) on dry matter intake (DMI), milk production composition, grazing behavior, rumen function, blood metabolites dairy cows in spring season. Experiment I: 64 Holstein Friesian were distributed a factorial design that tested two levels daily HA (20 30 kg (DM) per cow) ST (high moisture maize (HMM) cracked wheat (CW)) rations (3.5 DM/cow/day). II: four mid-lactation cannulated cows, supplemented with either HMM...
The inclusion of fresh forages into dairy cows’ diets during the winter can represent economic and nutritional benefits but affect metabolic function. study aimed to evaluate effect using berseem clover/oat (MIX), lucerne (LEG) hay/silage (CON) as forage basis for total mixed ration period on rumen characteristics N metabolism. Three non-lactating rumen-cannulated cows were allocated each diet a 14-day in 3 × Latin Square design. Sample collection occurred last days period. Rumen fluid...
Calcified seaweed (CS) based products have been proposed as an alternative ruminal pH buffer to sodium bicarbonate. It has reported that magnesium can aid in control too, especially those natural marine forms. We assessed the rumen capacity and milk production composition of two CS: Acid Buf (AB) compared with M12 (a enriched CS) on grazing dairy cows a replicated Latin Square design involving 2 farms herd good sanitary health status, supplements 4 measurements periods one month each....
Key words: "Heavy veal", grain-fed