A5054902984- Animal Nutrition and Physiology
- Agricultural and Food Production Studies
- Genetic and phenotypic traits in livestock
- Livestock and Poultry Management
- Effects of Environmental Stressors on Livestock
- Reproductive Physiology in Livestock
- Meat and Animal Product Quality
- Reproductive Biology and Fertility
- Maternal and Neonatal Healthcare
- Insect-Plant Interactions and Control
- Plant Virus Research Studies
- Silkworms and Sericulture Research
- Ovarian function and disorders
- Animal Behavior and Welfare Studies
- Plant and soil sciences
- Coccidia and coccidiosis research
- Mediterranean and Iberian flora and fauna
- Historical and socio-economic studies of Spain and related regions
- Livestock Management and Performance Improvement
- Veterinary medicine and infectious diseases
- Ruminant Nutrition and Digestive Physiology
- Rabbits: Nutrition, Reproduction, Health
- Insect Pest Control Strategies
- Helminth infection and control
- Fungal Plant Pathogen Control
Universidad de Valladolid
2006-2019
Fundación Universitaria Agraria de Colombia - UNIAGRARIA
2010
Universidade de Santiago de Compostela
2003-2004
Purdue University West Lafayette
1999
Tate & Lyle (United Kingdom)
1999
This paper analyses the effect of caponisation at 8 weeks on growth and carcass meat characteristics Castellana Negra chickens slaughtered 29 weeks. Caponisation did not result in weight improvements as compared with uncastrated birds. No changes were observed rate or parameters determining point inflection curve (sexual maturity). Regarding characteristics, castration resulted a wider breast angle heavier pectoral muscles caponised birds than birds, but no differences thigh drumstick...
SummaryMineral oils are widely used to control non-persistently transmitted viruses by aphid vectors, but mineral cause a number of problems including significant phytotoxicity. This study comprises three series assays compare oil, fish oil and four vegetable for: a) insecticidal effects on the Myzus persicae; b) inoculation cucumber mosaic virus (CMV) M. persicae oil-sprayed pepper plants; c) acquisition CMV from plants. The tested were raw refined rapeseed soya oil. showing strongest...
1. This study shows the results of (a) fitting growth data to a Gompertz-Laird model and (b) egg production per housed bird Grossman model, in population Castellana Negra hens. 2. The maximum point for males females, respectively, occurred at 10.6 9.3 weeks estimated weights maturity were 2852 1878 g. Growth curve parameters lower than those commercial lines similar reports other unselected breeds. 3. start lay was 23 weeks. Total reached 163 52 weeks, with persistency (length constant...
Growth modeling in castrated Brahman males raised tropical conditions depending on the
This study investigated the use of previously superovulated ovaries as a source oocytes, assessing competence them for in vitro embryo production. Two superovulatory treatments were performed: equine Chorionic Gonadotrophin (eCG) plus porcine Follicle-Stimulating Hormone (pFSH) single dose or conventional protocol six decreasing doses pFSH. Thirty donor ewes endangered Ojalada breed given either simplified (group S; n=15) decreasing-dose D; three times at intervals ≥50 days. Ovaries...
The aim was to evaluate the effect of size (long or chopped wheat straw), type (barley wheat) and presence/absence (1 week) straw supplementation on behaviour welfare fattening lambs. Sixteen lambs (65 days) were individually housed be used in two simultaneous experiments (8 each) for 5 weeks fattening. After a habituation period, they offered that differed either (Experiment 1) 2), which followed by week without then reallocation straw. Maintenance behaviours, play stereotypies analysed...
The present study analysed the meat characteristics of i) improved Castellana Negra chickens slaughtered at 18 weeks (CN-18) and ii) F1 crossbred from hens Penedesenca Negracocks (CNPN) 12 age (young adult animals, respectively). Purebred andcrossbred specimens were compared similar weights (CN-18 CNPN-12) ages CNPN-18). protein content was for three types animals; heavier animals (CNPN-18) had more fat thanthose lower (CNPN-12 CN-18). Adults a higher saturated fatty acid theyoung CNPN...
Laboratory, greenhouse and field experiments were performed on vegetable, fish mineral oils to evaluate their phytotoxic effects grapevine effectiveness in the control of powdery mildew. None tested showed detectable at concentrations 2% or less applied up to 4 times per week. In trials, efficacy paraffin oil, refined rapeseed oil partially against powdery mildew was similar that obtained with standard fungicides (tebuconazole colloidal sulphur). In field three (paraffin crude soya oil:...
Coccidiosis is a disease responsible for serious economic losses in the poultry industry. This paper compares effect of coccidiosis infection population experimentally infected Castellana Negra chickens previously administered ionophorous antibiotic monensin (Treatment 1), Alquernat Zyox, herb-based product 2), or live vaccine based on oocystes selected precocity 3). Fifty birds per treatment were housed captivity and weighed individually once every two weeks. At nine weeks they with...
ResumenEl estudio de la curva lactación permite conocer evolución producción lechera los animales, estimándose así total o parcial en un periodo determinado.En este trabajo se presentan parámetros que describen láctea, estimados según diferentes modelos lineales (lineal, cuadrático y lineal hiperbólico) no (gamma incompleta, parabólica exponencial, Wiltmink, Papajcsik Bordero, Cobby, Brody), ovejas raza Ojalada manejadas pastoreo San Esteban Gormaz (Soria) para Lechazos.Se registraron 6.600...