- Ruminant Nutrition and Digestive Physiology
- Genetic and phenotypic traits in livestock
- Effects of Environmental Stressors on Livestock
- Animal Nutrition and Physiology
- Agroforestry and silvopastoral systems
- Animal Behavior and Welfare Studies
- Soil Management and Crop Yield
- Rural Development and Agriculture
- Reproductive Physiology in Livestock
- Agricultural and Food Sciences
- Agriculture Sustainability and Environmental Impact
- Milk Quality and Mastitis in Dairy Cows
- Meat and Animal Product Quality
- Agriculture and Farm Safety
- Animal health and immunology
- Muscle metabolism and nutrition
- Rabbits: Nutrition, Reproduction, Health
- Selenium in Biological Systems
- Pasture and Agricultural Systems
- Growth and nutrition in plants
- Agriculture and Rural Development Research
- Genetics and Plant Breeding
- Agricultural and Rural Development Research
- Insect Utilization and Effects
- Aquaculture Nutrition and Growth
Universidade Estadual de Londrina
2020-2025
Universidade Federal do Paraná
2009-2024
Weatherford College
2024
Virginia Tech
2024
University of Lisbon
2024
Universidade Estadual Paulista (Unesp)
1992-2014
Universidade Federal de Pelotas
2012
To maximise the return on capital invested in milking parlour, largest number of cows should be milked gently and completely shortest possible time. Bimodal milk flow overmilking negatively influence efficiency removal process teat health. This observational study had objective investigating prevalence bimodal overmilking, determining which individual farm-related variables are associated with these occurrences, association yield short- long-term changes. Twenty-one farms were visited once...
This study was designed to investigate the effect of early weaning and concentrate supplementation on performance metabolic profile lambs in four production systems pasture: suckling not supplemented until slaughter; with creep feeding weaned slaughter. Performance assessed by average daily gain (ADG) body condition score (BCS) measurements. Metabolic delineated measuring serum albumin, urea, creatinine, cholesterol, glucose aspartate aminotransferase. Weaning reduced ADG 92 g/d for were 113...
Feed intake and efficiency, animal performance, protein energy metabolism were studied in lambs that fed on increasing levels of urea (0.0, 0.5, 1.0, 1.5% dry matter [DM]). A completely randomized design was used, with four treatments (urea levels) six replicates. The ad libitum for 56 days until they reached an average body weight 35 kg. rations composed 34% Tifton 85 hay (Cynodon spp.) 66% concentrate. Crude (CP) constituted 17% the diet a basis, total digestible nutrients (TDN) accounted...
The objective of this study was to evaluate the carcass and meat traits, non-carcass components crossbred Dorper lambs fed diets with increasing levels urea (0.0, 0.5, 1.0, 1.5% dry matter – DM). experimental design completely randomized four treatments (urea inclusion levels) six replicates per treatment. Lambs were ad libitum for 56 days slaughtered at 37.9 ± 5.1 kg body weight (BW). yield before after cooling not influenced by levels, average values 16.9 44.6% cold yield. Urea did affect...
Swines raised in intensive systems are highly susceptible to claw lesions. Moderate severe lesions trigger an inflammatory response, causing pain and impairing reproductive economic performance. Foot sows can cause considerable losses owing reduced fertility herd longevity. Proper diagnosis is important step correcting this problem; however, the seriousness of impact these on swine herds remains unclear most farm owners. Health monitoring has become essential tool for veterinarians because...
This study evaluated economic return of lamb meat production and identified the compounds that have greater influence on cost. The was carried out in two stages. Stage 1: experiment at Lapoc-UFPR 2004 to compare finishing for slaughter 32 kg: (1) 40-days-old weaned kept under pasture; (2) with mother (3) pasture concentrate (1% BW day-1) creep feeding; (4) feedlot. 2: a module 150 ewes projected evaluations considering animals breeding sale. Calculation fixed, variable, total costs,...
The objective of this study was to evaluate the intake behavior lambs on Tifton 85 pasture (Cynodon spp.) in three production systems: sixty-days-old weaned kept pasture; with their mother creep feeding. Systems were allocated a completely randomized blocks design replicates and four per replicate. Pasture sward surface height, forage dry matter, morphological nutritional characters assessed. Intake observed from dawn dusk. assessed time animals spent following activities: grazing,...
O objetivo desta revisao foi demonstrar a importância e aplicabilidade do uso lipidograma na avaliacao metabolismo energetico de ruminantes, considerando o potencial ferramenta em estudos relacionados bioquimica, fisiologia nutricao animal. caracterizado pelos niveis sericos/ plasmaticos colesterol, triglicerideos, β- hidroxibutirato (BHB) acidos graxos nao esterificados (AGNE). Em geral, elevados sericos/plasmaticos colesterol triglicerideos indicam quadro balanco positivo (BEP), onde via...
The objective of this study was to evaluate the influence creep feeding and grazing on pasture characteristics performance productivity sheep. Three systems lambs production Tifton 85 (Cynodon spp.) pastures oversown with Italian ryegrass (Lolium multiflorum Lam) were studied: dams until slaughter without supplementation (1); fed concentrate in feeders at 2% BW.day-1 (2); supplemented white clover (Trifolium repens) system ad libitum (3). did not differ (P>0.05) among systems. Individual...
The performance, carcass traits and finishing costs of Suffolk lambs were evaluated in three systems: (1) weaned with 22 kg body weight (BW) supplemented concentrate on pasture until slaughter; (2) BW fed feedlot (3) maintained controlled nursing after creep slaughter. Average daily gain (ADG) was 224 g/d for pasture, 386 481 under nursing. Empty visceral fat deposition highest from systems. Carcass weights yields Finishing total lowest the system weaning feedlot. High diet associated...
The influence of early weaning and concentrate supplementation strategies on sward characteristics, forage chemical composition lamb productivity were evaluated in four production systems Tifton-85 pasture: suckling lambs not supplemented until slaughter; with creep feeding early-weaned slaughter. Structural, morphological productive characteristics pasture measured. was chemically analyzed to estimate its composition. Lambs average daily gain calculated. Sward height, components mass lower...
O leite ovino é utilizado em escala global para a produção de queijos e outros derivados, ou consumo in natura. A seus seja formal informal, faz parte uma cadeia produtiva, com menor maior grau organização dependendo do desenvolvimento regional da atividade. objetivo deste estudo foi descrever discutir os elementos produtiva no Brasil utilizando metodologia SWOT. Este desenvolvido 2017 partir pesquisa direta agentes ligados ao setor produtivo 15 propriedades distribuídas sete Estados Brasil....
Milk samples from 242 Santa Ines breed ewes tested for subclinical mastitis using California Mastitis Test (CMT) score 1+, 2+ and 3+ were cultured. The bacteriological tests run in 5% sheep blood agar MacConkey the microorganism observed identified gram method taxonomy proves. Then microorganisms submitted to vitro antibacterial susceptibility test. A total of 94 isolate pure association culture distributed as followed: Staphylococcus sp(n=50; 53,1%), Streptococcus sp (n=18; 19,1%),...
O objetivo deste estudo foi verificar a influência do colostro nos parâmetros bioquímicos séricos em cordeiros recém-nascidos. Foram colhidas amostras sanguíneas de 28 cordeiros, determinando-se os indicadores proteicos, energéticos, função renal, bilirrubinas e as enzimas aspartato aminotransferase (AST), gama-glutamiltransferase (GGT) creatina quinase (CK), momentos pré pós-colostro. Os dados foram analisados comparando-se variabilidade dos entre dois momentos. Houve elevação (P<0,001)...
Aimed at understanding how lamb production systems can affect sward structure in tropical grass pastures, the productive, structural and morphological characteristics of Tifton 85 (Cynodon spp.) pasture were evaluated four systems: non-weaned non-supplemented lambs (NW); receiving concentrate supplementation creep feeding (CF); early-weaned not supplemented (W); with (WS). The trial lasted 105 days was set out a randomized block design treatments (systems), three replications (paddocks) five...
Residual feed intake (RFI) and its relationship with reproductive traits was evaluated in growing bulls. Fifty-two Purunã bulls (11 mo initial age) were fed ad libitum individual feedlot pens for 112 d. The animals ranked RFI assigned to 3 efficiency groups: efficient (low RFI), intermediate (medium inefficient (high RFI). Initial final BW ADG did not differ ( > 0.10) among the groups mean values of 254.6 (SD 44), 373.0 62), 1.06 kg 0.25), respectively. Mean 7.12 ± 0.28, 7.78 8.04 0.28 kg/d...