A5012982626- Effects of Environmental Stressors on Livestock
- Animal Behavior and Welfare Studies
- Animal Nutrition and Physiology
- Genetic and phenotypic traits in livestock
- Ruminant Nutrition and Digestive Physiology
- Rabbits: Nutrition, Reproduction, Health
- Reproductive Physiology in Livestock
- Livestock and Poultry Management
- Agroforestry and silvopastoral systems
- Soil Management and Crop Yield
- Aquaculture Nutrition and Growth
- Antioxidant Activity and Oxidative Stress
- Urban Heat Island Mitigation
- Neuroendocrine regulation and behavior
- Comparative Animal Anatomy Studies
- Crop Yield and Soil Fertility
- Agriculture Sustainability and Environmental Impact
- Thermoregulation and physiological responses
- Heat Transfer Mechanisms
- Meat and Animal Product Quality
- Wildlife Ecology and Conservation
- Human-Animal Interaction Studies
- Agriculture and Farm Safety
- Milk Quality and Mastitis in Dairy Cows
- Morphological variations and asymmetry
Universidade Federal do Amazonas
2025
Instituto Nacional do Semiárido
2020-2024
Universidade Federal da Paraíba
2015-2021
Japanese quails (Coturnix coturnix japonica) are sensitive to zinc (Zn) deficiency, a mineral essential for growth, development, and bone health. This study evaluated the effects of different levels Zn in diet on zootechnical performance, organ carcass weight, tibial breakage resistance from 1 42 days age. A 5 × 2 factorial design was used, consisting five (30, 60, 90, 120, 150 mg/kg) two thermal environments (thermal comfort heat stress), with replicates 10 birds per treatment. The results...
Abstract Ensiling maniçoba (Manihot pseudoglaziovii) is essential to preserve the nutrients of this forage plant. However, plant moisture content may generate undesirable fermentations. The objective study was evaluate effects different cornmeal inclusion levels (0%, 10%, 20%, and 30%) on chemical composition fermentation parameters silage, in addition identifying variables most affected by cornmeal. concentrations dry matter (DM), non-fiber carbohydrates (NFC), total digestible (TDN),...
The objective of this study was to evaluate the productive performance, egg quality and morphometry organs Japanese quails (Cotournix cotournix japônica) when kept in comfort under thermal stress. 192 nine-week-old quail were used, distributed a completely randomized design at two temperatures (T1 = 24 °C T2 32 °C), with 12 replicates eight birds each, an experimental period 63 days, divided into three 21-day periods. Feed intake (g fowl-1 day-1), water consumption (mL production (%), weight...
The objective of this study was to evaluate the seasonal and daily variation in sexual behavior Morada Nova breeders raised Brazilian semi-arid region. data were collected from four rams 114 ewes breed - 55 females dry season another 59 rainy season. Observations performed seasons, divided into times day: morning (05:01 h 11.00 h), afternoon (11.01 17.00 evening (17.01 23:00 dawn (23:01 05.00 h). Sexual assessed for a period 24 h/day, breeding One ram used each three days. behavioral...
This study was designed to assess the effects of feeding space availability on social behavior and performance housed crossbreed sheep through use three different types feeders. Thirty-six ewes (Santa Inês × Dorper; 2-3 years old) with initial body weight 34.99±4.28 kg were randomly assigned a 3 (feeder type available at feeder) factorial arrangement among nine pens. Pens had one feeder (concrete bunk, plastic, or wood barrel) amounts in (0.33, 0.25, 0.20 m animal−1). Total dry matter...
In this study we investigated the effect of glutamine and glutamic acid inclusion in diet weaned piglets subjected to cold stress thermoneutral environment. Sixty-four were assessed from 28 65 days age. A completely randomised design consisting a 2 × factorial arrangement was tested – environments (thermoneutral stress) diets (control L-glutamine + L-glutamic (G GA)). Performance, relative organ weight carcass yield, morphology intestinal mucosa assessed. Supplementing with G GA reduced feed...
This study aimed to establish the ideal temperature for Japanese quails, 168 quails were used distributed in four treatments (temperatures: 20, 24, 28 and 32 ° C), six replicates of seven birds each. The experiment was divided into phases 21 days bioclimatic chambers CCA/UFPB, Areia/PB. physiological parameters cloacal (TC) surface average (TMS) evaluated; Behavioral patterns Eating (CRs), Drinking (CAs), Investigating Feathers (PI), Comfort movements (MC) aggressive (MA), grouped (AGR),...
Tannins have been used to trigger positive effects on ruminal metabolism and increase ruminant production efficiency, since they the supply of dietary protein in small intestine. Increasing levels tannic acid a sorghum-based diet feeding behavior five Holstein/Zebu crossbred lactating dairy cows was evaluated. They were subjected 5 × Latin square experimental design, with fivelevels tannin as dry matter (DM) (0.46, 1.30, 2.60, 3.90, 5.20%). The added established based quantity condensed...
ABSTRACT This study aimed to estimate the heat flux through sensitive mechanisms and respiratory evaporation of Japanese quails kept in thermoneutral warm environments, using simple environmental physiological measures. 192 nine-week-old were used, distributed a completely randomized design at two temperatures (T1 = 24°C T2 32°C), with 12 replicates eight birds each, an experimental period 63 days, divided into three 21-day periods. Physiological measurements rate (RR), cloacal temperature...
Resumo A ensilagem da maniçoba (Manihot pseudoglaziovii) é importante para preservar os nutrientes dessa planta forrageira. Todavia, o teor de umidade pode gerar fermentações indesejáveis. Objetivou-se avaliar efeito níveis fubá milho (0, 10, 20 e 30%) sobre a composição bromatológica parâmetros fermentativos silagem maniçoba, além identificar as variáveis mais afetada pelo aditivo. As concentrações matéria seca (MS), carboidratos não-fibrosos (CNF), digestíveis totais (NDT) ácido propiônico...
The present study aimed to evaluate the effects of different nutritional plans on meat quails subjected heat stress. A total 324 male European ( Coturnix coturnix ) were used, with an average initial weight 121.48 g ± 3.1 g, distributed in a completely randomized design nine treatments and six repetitions birds each. diets evaluated from 22 42 days age, according following treatments: T1 - Control diet; T2 Moderate crude protein (CP) reduction, without amino acid supplementation (AA); T3 CP...
Abstract The objective of this work was to evaluate the effect protein reduction, with or without supplementation limiting amino acids, on performance and carcass characteristics meat quails from 22 42 days age in a thermoneutral environment. A total 324 European were randomly allocated into nine diets. diets formulated based recommended requirement (control) differentiated according crude (CP) reduction levels moderate (10%) severe (20%). supplemented not acids. meeting methionine +...
: Objetivou-se relacionar os padroes das atividades diurnas de cordeiros mesticos com niveis de radiacao solar numa regiao equatorial semiarida. O estudo foi conduzido na Empresa Pesquisa Agropecuaria da Paraiba (6°S, 35°W) no periodo outubro a novembro 2016. Doze F1 (Dorper x Santa Ines) peso 18 ± 1,2 kg foram distribuidos ao acaso (Grupos seis) em dois piquetes 0,8 hectares. Durante cinco dias, o tempo despendido pelos em alimentacao, ruminacao, pe, deitado, expostos ou protegidos...
Thirty four lambs and twenty multiparous Morada Nova ewes with 3 ± 1.2 years of age were evaluated in a semi-extensive system for assessments their suckling activities when they 10-40 days old. The body mass (kg) biometric measurements also assessed at each 15 from birth to 90 age. From age, single had superior (P < 0.05) than those twins. Both twins the daily weight gain substantially decreased after thirty There was high correlation (i.e., r > 0.90; P between all lambs. frequency decreases...
The management of the thermal environment to which dogs are exposed should be included in strategies improve their welfare. An online questionnaire was administered 624 owners Siberian Husky residing Brazil, with objective assessing perceptions regarding dogs' capacity adapt heat, and its association owners' routine care. Owners who believed that low-heat-tolerant animals were more likely report heat response behaviors from dogs. Overall, reported walk during early morning, late afternoon...
Characterization studies must be prioritized to allow the maintenance of racial standard guarantee conservation their genes origin. The Nordestina breed is a small animal, not exceeding 150 cm for males and 145 females, with body weight approximately 280 kg in both sexes. objective this research was compare conventional method imaging (ImageJ® software) performance morphometric measurements horses breed. performed were withers height (WH), croup (CH), length (BL), neck (NL), side (SH),...
The welfare of dairy cows is a major global concern, due to its impact on cow health and productivity, as well public health. aim this study was identify the main problems related in herds managed pasture state Paraíba, Brazil. For investigation, cross-sectional conducted 12 farms municipalities Areia, Alagoa Grande, Serraria, Pilões, Each farm visited only once, recording number herd, type milkings per day, daily milk yield, access time pasture. Body condition score, cleanliness bodily...