A5077287855- Genetic and phenotypic traits in livestock
- Animal Genetics and Reproduction
- Reproductive Physiology in Livestock
- Genetic Mapping and Diversity in Plants and Animals
- Effects of Environmental Stressors on Livestock
- Livestock Management and Performance Improvement
- Ruminant Nutrition and Digestive Physiology
- Rural Development and Agriculture
- Meat and Animal Product Quality
- Genetics and Plant Breeding
- Helminth infection and control
- Animal Behavior and Welfare Studies
- Food, Nutrition, and Cultural Practices
- Reproductive Biology and Fertility
- Livestock Farming and Management
- Agroforestry and silvopastoral systems
- Agricultural and Food Sciences
- Milk Quality and Mastitis in Dairy Cows
- Genetic diversity and population structure
- Cancer-related molecular mechanisms research
- Infant Nutrition and Health
- Agriculture Sustainability and Environmental Impact
- Vector-Borne Animal Diseases
- Toxin Mechanisms and Immunotoxins
- Breastfeeding Practices and Influences
Brazilian Agricultural Research Corporation
2014-2024
State University of Vale do Acaraú
2016
Universidade Federal do Ceará
2005-2007
Economic values were estimated for meat sheep raised in a pasture based production system semi-arid Brazil using data on the Morada Nova hair breed. The traits considered lambing percentage (LP), litter size (LS), lamb mortality (LM), yearling (YM), ewe and ram (AM), female slaughter weight (FSW), male (MSW), adult (EAW), (RW), carcass yield (CY), number of lambings per year (NLY), age at first (AFL) anthelminthic doses used (AC). economic profit equation (profit = revenue − costs) after one...
The genetic parameters for growth, reproductive and maternal traits in a multibreed meat sheep population were estimated by applying the Average Information Restricted Maximum Likelihood method to an animal model. Data from flock supported Programa de Melhoramento Genético Caprinos e Ovinos Corte (GENECOC) used. studied included birth weight (BW), weaning (WW), slaughter (SW), yearling (YW), gain (GBW), (GWS), (GWY), age at first lambing (AFL), interval (LI), gestation length (GL), date (LD...
Abstract Western hemisphere goats have European, African and Central Asian origins, some local or rare breeds are reported to be adapted their environments economically important. By-in-large these genetic resources not been quantified. Using 50 K SNP genotypes of 244 animals from 12 goat populations in United States, Costa Rica, Brazil Argentina, we evaluated the diversity, population structure selective sweeps documenting migration “New World”. Our findings suggest concept breed,...
Context Animal husbandry in thermally stressful environments can be both complex and difficult, the anticipated effects of climate change are expected to increase this condition. Aim Thermoregulatory responses, acid–base electrolytic balance were evaluated indigenous ewes different coat colour during moments natural heat stress. Methods Fifteen (white, red black; five each) used data collected for six consecutive weeks dry rainy periods at three times day [(Moment 1) 0500 hours 0600 hours;...
A partir de registros genealogia e controle leiteiro reprodutivo fornecidos pela Associação Brasileira dos Criadores Girolando, foram estimados os efeitos diferença genética aditiva entres as raças Holandesa Gir, dominância recombinação, além das herdabilidades repetibilidades, para características produção leite por lactação (PL), até 305 dias (PL305), duração da (DL), intervalo partos (IDP), idade ao primeiro parto (IPP) dia (PL/IDP). Foram utilizados 4.805 PL, PL305 DL 2.222, 1.408 2.363...
The aim of this study was to compare four genetic groups sheep on the carcass and meat quality traits. Thirty-three contemporary unrelated male lambs, all single birth were used in experiment, being thirteen from Santa Inês (SI) breed, seven Brazilian Somali breed (BS), six Morada Nova (MN) ½ Dorper - (F1) crossbreed. genotypes SI, BS F1 presented similar performances relation hot cold weights, which values 10.76±0.53kg 10.46±0.52kg for 9.20±0.73kg 8.99±0.71kg BS, 9.35±0.73kg 9.13±0.71kg F1,...
Summary Brazilian hair sheep constitute a genetic diversity hotspot. These animals are found in the harsh environments of Northwest (semi‐arid) region. Genotypes (50K SNP chip) from seven breeds (five and two coarse wool types) 87 worldwide were used to test for population structure, admixture diversity. Moreover, phylogenetic trees evaluating migration events between groups built. Somali, fat‐tailed breed, had close relationship with East African clustered distinctly other breeds....
Avaliou-se o fluxo de biomassa em Panicum maximum cv. Tanzânia pastejado por ovinos com três períodos descanso (PD), definidos pela expansão 1,5; 2,5 e 3,5 novas folhas perfilho, um delineamento inteiramente casualizado, duas repetições (piquetes). Estimaram-se as taxas alongamento lâmina foliar total (TAlF), senescência lâminas foliares remanescentes do pastejo anterior (TSFA), das formadas no PD (TSFP) (TSFT=TSFA+TSFP), a taxa hastes (TAlH), razão entre TAlF 1 2 (razão TAlF1/TAlF2),...
Foram estimados os parâmetros e as tendências genéticas dos efeitos direto materno na característica dias para ganhar 160 kg (D160) fase pré-desmama do efeito 240 (D240) pós-desmama, em bovinos da raça Nelore, nascidos no período de 1965 a 2001, região Nordeste Brasil. Os predições valores genéticos foram utilizando o aplicativo MTDFREML. Para D160, modelo incluiu aleatórios ambiente permanente, além fixos grupo contemporâneo covariável idade vaca ao parto, admitindo covariância entre igual...
Morada Nova hair sheep show traits desirable for lamb production especially in extensive systems Northeastern Brazil, representing an important genetic resource producing semi-arid climates Brazil and elsewhere. Performance testing has been carried out annually with this breed since 2008. In the present study, from two Brazilian states: Ceará (140 animals) São Paulo (112 were genotyped a SNP associated litter size, which is almost only found locally adapted breeds (FecGE). The total observed...