A5020455852- Genetic and phenotypic traits in livestock
- Meat and Animal Product Quality
- Animal Nutrition and Physiology
- Cancer-related molecular mechanisms research
- Ruminant Nutrition and Digestive Physiology
- Nuts composition and effects
- Aquaculture Nutrition and Growth
- Genetic Mapping and Diversity in Plants and Animals
- Bee Products Chemical Analysis
- Genomic variations and chromosomal abnormalities
- Chromium effects and bioremediation
- Livestock Management and Performance Improvement
- Metallurgy and Material Science
- Animal Behavior and Welfare Studies
- Livestock Farming and Management
- Calpain Protease Function and Regulation
- Protein Hydrolysis and Bioactive Peptides
- Natural Products and Biological Research
- Muscle Physiology and Disorders
- Peroxisome Proliferator-Activated Receptors
- Molecular Biology Techniques and Applications
- Animal Nutrition and Health
- Research in Cotton Cultivation
- Agriculture and Biological Studies
- Agroforestry and silvopastoral systems
Universidade de São Paulo
2014-2021
Secretaria de Agricultura e Abastecimento
2017-2018
Fundação de Estudo e Pesquisa em Medicina Veterinária e Zootecnia
2018
Saturated fatty acids can be detrimental to human health and have received considerable attention in recent years. Several studies using taurine breeds showed the existence of genetic variability thus possibility improvement acid profile beef. This study identified regions genome associated with saturated, mono- polyunsaturated acids, n-6 n-3 ratios Longissimus thoracis Nellore finished feedlot, single-step method. The results that 115 windows explain more than 1 % additive variance for 22...
Fatty acid type in beef can be detrimental to human health and has received considerable attention recent years. The aim of this study was identify differentially expressed genes longissimus thoracis muscle 48 Nellore young bulls with extreme phenotypes for fatty composition intramuscular fat by RNA-seq technique. Differential expression analyses between animals phenotype showed a total 13 myristic (C14:0), 35 palmitic (C16:0), 187 stearic (C18:0), 371 oleic (C18:1, cis-9), 24 conjugated...
Abstract The study evaluated the effect of gender status on carcass and meat quality feedlot Angus × Nellore cattle. A total 176 cattle, 20 months old, were confined for 190‐days assigned to four treatments: bulls, immunocastrated, steers, heifers. Bulls had greater rib eye area HCW ( p = 0.0001). Heifers increased fat thickness Steers heifers higher marbling scores There was interaction between aging time Warner‐Bratzler Shear Force 0.0002), L* 0.0118), b* 0.0113) values beef. sensory panel...
This study was conducted to evaluate the fatty acid profile, sensory properties and lipid oxidation of meat on retail display (RD) from Nellore steers (n = 96) fed diets containing soybean (SOY), sunflower (SUN), or linseed (LIN) oil a control diet (CON). After slaughtering, samples Longissimus muscle were collected for (1 day), composition day) stability (3 days under RDC) evaluations. No differences in total lipids, cholesterol, TBARS, SFAs, MUFAs, PUFAs, PUFA/SFA observed. However,...
The aim of the present study was to estimate covariance components and genetic parameters for beef fatty acid (FA) composition intramuscular fat in longissimus thoracis muscle Nelore bulls finished feedlot. Twenty-two FAs were selected. heritability estimates individual ranged from 0.01 0.35. myristic (0.25 ± 0.09), palmitic (0.18 0.07), oleic (0.28 linoleic (0.16 0.06) α-linolenic (0.35 0.10) moderate. Stearic, elaidic, palmitoleic, vaccenic, conjugated acid, docosahexanoic, eicosatrienoic...
The objective of this study was to evaluate the effect nutritional management during rearing and finishing phases on beef fatty acid composition, carcass quality traits Hereford cattle. used 240 castrated male calves weaned at 8 months age, with an average weight 170 ± 17 kg. After weaning, experiment divided in three a 4 × 2 factorial design: 93-day winter period four treatment groups (on pasture or feedlot high low feeding levels); 196-day compensatory-growth phase pasture; either feedlot....
New alternatives to increase the content of polyunsaturated beef fat are necessary. Feed supplements like microalgae a strategy enrich meat with omega 3. The aim study was evaluate growth performance, fatty acid profile and carcass characteristics steers fed in diet. Sixteen (mean weight 299.6 ± 7.4 kg, seven months) were randomly assigned two groups: control group (CTL) (ALG; daily feeding 1.7% dry matter as microalgae). diet (40% corn silage 60% concentrate) offered twice for 84 days....
Dietary protein adjustments can reduce environmental impact and economic losses in production systems. However, we lack information regarding nitrogen (N) metabolism requirements for maintenance of crossbred animals such as Red Norte breed, precluding a precise dietary management. The objective was to evaluate the effect increasing CP levels (9%, 11%, 13%, 15% 17%) on intake, digestibility N balance, well estimate metabolizable (MPm) growing bulls. Thirty five averaging 280 ± 4.0 kg BW were...
Beef fatty acid profile can be modified by the sex of animals. Therefore, goal this study was to evaluate influence gender status on beef feedlot Angus × Nellore cattle. A total 176 cattle, 20 wk age, from Brazilian Certified Program were assigned 4 classes: 32 bulls, 48 steers, immunocastrates, and heifers, presenting initial mean weights 251.4 ± 3.62 kg for 266.6 2.95 226.4 255.4 heifers. Cattle fed during 190 d an ad libitum high-grain diet containing 80% concentrate. At end experimental...
The use of functional oils replacing additives, such as antibiotics, ionophores, and growth promoters, has shown good results. Furthermore, there is an increasing demand from consumers for healthier meat. Therefore, the aim this study was to evaluate effects inclusion (Ricinus communis Anacardium occidentale) vitamin E in high-grain diets on meat sensory traits lambs. A total 30 crossbred lambs (12 males 18 females), 5 mo age, were used. Lambs presenting initial mean weights 26 ± 3.6 kg...
The aim of this study was to identify genomic regions associated with the total amount saturated (SFA), monounsaturated (MUFA), and polyunsaturated (PUFA) fatty acids in beef Nellore cattle. investigated dataset contained records from 963 bulls, about two years old, finished feedlot (90 days). Meat samples Longissimus dorsi muscle, between 12th 13th ribs left half-carcasses, were taken measure (FAs). FAs quantified by gas chromatography (GC-2010 Plus - Shimadzu AOC 20i autoinjector) using...
Many studies have demonstrated the damaging effect of gases such as ammonia in production broilers chickens, especially on performance and blood parameters. However, few evaluated using additives to treat poultry litter chicken meat quality. Therefore, goal this study was evaluate effects aluminum sulfate doses (Al2(SO4)3·18H2O; 0, 200, 400, 600 g/m2) stocking density (12 14 birds/m2) quality traits. A total 532 broiler male Cobb 500 chicks presenting an initial mean weight 46 g ± 2.3 were...