A5027925078- Ruminant Nutrition and Digestive Physiology
- Genetic and phenotypic traits in livestock
- Meat and Animal Product Quality
- Reproductive Physiology in Livestock
- Agricultural and Food Production Studies
- Animal Nutrition and Physiology
- Agriculture and Rural Development Research
- Effects of Environmental Stressors on Livestock
- Agroforestry and silvopastoral systems
- Rabbits: Nutrition, Reproduction, Health
- Historical and socio-economic studies of Spain and related regions
- Fatty Acid Research and Health
- Nuts composition and effects
- Helminth infection and control
- Plant and soil sciences
- Horticultural and Viticultural Research
- Natural Products and Biological Research
- Agriculture Sustainability and Environmental Impact
- Biochemical effects in animals
- Muscle metabolism and nutrition
- Livestock Farming and Management
- Animal Nutrition and Health
- Plant and fungal interactions
- Spectroscopy and Chemometric Analyses
- Bioenergy crop production and management
Universidad de León
2014-2024
Instituto de Ganadería de Montaña
2015-2024
Universidad de León
2022
Estación Experimental de Aula Dei
1997-2018
Consejo Superior de Investigaciones Científicas
2005-2017
Estación Experimental del Zaidín
1998
Tannins are a complex group of polyphenolic compounds found in wide range plant species commonly consumed by ruminants. They conventionally classified into two major groups: the hydrolysable and condensed tannins. Although for long time tannins were thought to be detrimental ruminants, their effect may either beneficial or harmful depending on type tannin consumed, its chemical structure molecular weight, amount ingested, animal involved. High concentrations reduce voluntary feed intake...
Abstract. Batch cultures of rumen microorganisms, using fluids from 4 ruminant species, sheep, goats, cows, and deer, were used to study the ability polyethylene-glycol (PEG 6000) inhibit effect 2 types tannins, quebracho (QUE, a condensed tannin) tannic acid (TA, hydrolysable on several in vitro fermentation characteristics. Both QUE TA able impair ruminal (they reduced gas production, extent degradation, ammonia-N, volatile fatty concentrations, etc.; P < 0.05), with differences...
Abstract The nutritive value of 17 straws was determined on the basis their chemical composition, in vitro dry matter (DM) digestibility and rumen fermentation kinetics (from gas production curves measured ). Five roughages were from cereal species Avena sativa (oat), Hordeum vulgare (barley), Secale cereale (rye), Triticum aestivum (wheat) Zea mays (maize stover). other 12 samples legume straws, two each Cicer arietinum (chickpea), Lens culinaris (lentil) Phaseolus vulgaris (bean) one...
Abstract An in vitro trial was carried out to investigate the effects of natural Thymbra capitata essential oil (NEO) and its main compounds [including carvacrol, p -cymene, γ -terpinene given alone or a synthetic combination (SEO)] on ruminal fermentation bacterial community using batch cultures inoculated with digesta incubating two different basal diets [high-forage (F) high-concentrate (C) diet]. After 24 h incubation, primary end-products [gas, methane, volatile fatty acids (VFAs)...
Abstract Early supplementation with oregano essential oil (EO) in milk replacer (MR) may improve growth, immune responses, the microbiota and metabolome dairy calves during pre-weaning adulthood. Sixteen female (3 days of age) were divided two groups ( n = 8/group): control group (no EO) EO (0.23 ml MR 45 days). After weaning, kept a feedlot fed ad libitum . The animals weighed, blood faecal samples collected on 3 (T0), (T1) 370 (T2) to measure biochemical profile characterise peripheral...
This work was conducted to ensure that the consumption of a small amount chestnut hydrolysable tannin (HT) extract, included in diet (20.8 g•kg -1 DM) finishing lambs as feed additive, does not cause toxic effects or negatively affect lamb performance.Thirteen Merino were finished from 15 25 kg live weight, which is most typical slaughter weight for Spain.They divided into two groups: one used control (Control) and other received treatment with tannins (TAN).The only difference between...
Twenty Assaf lambs fed barley straw plus a concentrate alone (CONTROL group) or enriched with naringin (1.5 g/kg DM, NARINGIN were used to assess the effect of this polyphenolic compound on meat quality attributes. Serum samples collected for 7 weeks, then animals slaughtered and livers longissimus thoracis et lumborum muscles extracted analysis. Triacylglycerol levels in serum tended show (P = 0.087) lower average values group when compared CONTROL, but no differences observed was analysed...