Despite the health concerns and nutritional importance of fatty acids, there is a relative paucity studies in literature that report genetic or genomic parameters, especially case sheep populations. To investigate architecture acid composition sheep, we conducted genome-wide association (GWAS) estimated heritabilities for profile Longissimus dorsi muscle 216 male sheep. Genomic heritability estimates content ranged from 0.25 to 0.46, indicating substantial variation exists evaluated traits....

The objective of this work was to assess the degree multicollinearity and identify variables involved in linear dependence relations additive-dominant models. Data birth weight (n=141,567), yearling (n=58,124), scrotal circumference (n=20,371) Montana Tropical composite cattle were used. Diagnosis based on variance inflation factor (VIF) evaluation condition indexes eigenvalues from correlation matrix among explanatory variables. first model studied (RM) included fixed effect dam age class...

Repeated measures from the same individual have been analyzed by using repeatability and finite dimension models under univariate or multivariate analyses. However, in last decade, use of random regression for genetic studies with longitudinal data become more common. Thus, aim this research was to estimate parameters body weight four experimental chicken lines models. Body hatching 84 days age (n = 34,730) free-range (7P, Caipirão da ESALQ, Caipirinha ESALQ Carijó Barbado) were used. The...

The reduction in the quality, consumption, and digestibility of forage can cause a decrease animal performance, resulting losses to rural producer. Thus, it is important monitor these characteristics plants devise strategies or practices that optimize production systems. aim this study was develop validate prediction models using near-infrared spectroscopy (NIRS) determine chemical composition Tifton 85 grass. Samples green grass, its morphological structures (whole plant, leaf blade, stem +...

The objective of this research was to evaluate techniques, incubation period, and effects amino acids in ovo feeding. First, 240 hatching eggs were selected distributed a 2 × 3 factorial arrangement (two techniques d). parameters incubation, relative weight gastrointestinal organs, classification embryonic mortality evaluated. In the second stage, 720 incubated with five treatments: control, methionine (20 30 mg), lysine mg). These animals housed during 14 d. divided treatments, nine...

Inbreeding coefficient and milk traits in Holstein Jersey for percent fat, protein percentage (P = 0.479, 0.058 0.087, respectively).However, the PTAs yield fat decreased significantly after reaching inbreeding coefficients of 6.43 0.034) 5.75 0.007), respectively.The mean bulls was 6.45%; yield, protein, pounds, 15.04, 9.83 12.82% < 0.001, P 0.002, respectively).The linear regression only significant percentages breed 0.002 0.005, sires were more affected by smaller magnitudes than those...

SUMMARY This study evaluates the effects of Normal Shortening (NS) and Cold (CS) in sarcomere length, Warner-Bratzler shear force (WBS) tenderization process examined by Myofibrillar Fragmentation Index (MFI). The Biceps femoris muscle from ten Dorper x Santa Inês lambs was randomly assigned to 1) NS = cooling carcass for 24 hours a cold room at 4°C; or 2) CS rapid cooling, ice bath, removed immediately after slaughter. Sarcomere Length (SL) determined collected samples slaughter WBS MFI...

The inclusion of genetic groups in sire evaluation has been widely used to represent differences among animals not accounted for by the absence parentage data. However, definition these is still arbitrary, and studies assessing effects grouping strategies on selection efficiency are rare. Therefore, aim this study was compare with unknown prediction breeding values (EBV). total 179,302 records weaning weight (WW), 29,825 scrotal circumference (SC), 70,302 muscling score (MUSC) from Montana...

Resumo: O objetivo deste trabalho foi avaliar a eficiência do método ssGBLUP quanto à seleção e associação genômica ampla, com atribuição de pesos marcadores genéticos uso informações genótipos fenótipos, ou sem pedigree, diferentes coeficientes herdabilidade. A população estudada obtida por simulação dados 8.150 animais, 5.850 dos quais eram genotipados. Utilizou-se o para análise dados, duas matrizes relacionamento - pedigree -, os obtidos em cada iteração. aumento coeficiente...

Bluetongue (BT) is an infectious and non-contagious disease caused by bluetongue virus (BTV) belonging to the genus Orbivirus. It transmitted a hematophagous vector, Culicoides sp., ruminants, particularly sheep, which are most susceptible this disease. The main serological tests agar gel immunodiffusion (AGID), recommended World Organization for Animal Health (OIE), competitive enzyme-linked immunosorbent assay (cELISA), has advantage of no cross-reaction with other orbiviruses. aim was...

O objetivo deste trabalho foi avaliar o efeito da imunocastração e suplementação com ractopamina na qualidade do lombo suíno processado sal tripolifosfato de sódio. Os tratamentos consistiram condição sexual dos suínos (fêmeas, machos castrados fisicamente imunocastrados) ou não dieta terminação. cortes lombos submetidos ao processamento sódio foram avaliados quanto aos parâmetros físico-químicos, microbiológicos sensoriais. Não houve interação entre nas características cru. A adição...

ABSTRACT: This study aimed to evaluate the effects of replacing oat hay with coffee husk in diet lambs on intake and apparent digestibility dry matter (DM), organic (OM), crude protein (CP), ether extract (EE), non-fiber carbohydrate (NFC), neutral detergent fiber (NDF), acid (ADF). The experimental design was 4×4 Latin square four levels replacement (0, 7.5, 15, 22.5%) individually housed Texel sheep. Intake coefficients were measured at periods 12 days. All orts feces collected, weighed,...

ABSTRACT This study characterized the clinical, radiological, ultrasound, and necroscopic findings of a case Arnold-Chiari type II malformation in Gir breed calf from Brazil. The animal was hospitalized at sixty days age, permanent sternal recumbency, cutaneous appendix 4th lumbar vertebra kyphoscoliosis caudal lumbosacral thoracic spine. Radiographic examination spine skull revealed spina bifida suspected occipital hypoplasia. Upon myelography with an injection atlantooccipital contrast, it...

Feline ovariohysterectomy is a routine surgery that may cause neglected pain. This work evaluated, in prospective, comparative, randomized and blind study, the ketamine comparison to morphine preanesthetic medication on postoperative analgesia requirement cats undergoing ovariohysterectomy. Thirty healthy female were divided into group (MG, n = 15) (KG, 15). Cats received intramuscular dexmedetomidine (10 µg/kg), either (5 mg/kg) or (0.3 as premedication. The anesthesia was induced with...

This study aimed to evaluate the chemical-bromatological composition of fresh grass and hay from Tifton 85 cut at different times day, as well potential losses haymaking. The experimental design was a randomized block, assessing three cutting times: 11:00 AM, 2:00 PM, 5:00 PM. We determined contents dry matter, neutral detergent fiber, acid crude protein, protein insoluble in detergent, lignin, vitro digestibility collected samples. also estimated values for cellulose, hemicellulose,...

Abstract The aim of this study was to evaluate the effect a feed additive for feedlot Pantaneiro lambs on weight gain, dry matter intake, carcass and meat characteristics, in addition comparison between males females. Eleven eight females were used, with mean 19.52 ± 3.536 kg. animals divided into two groups, which treatment group received diet food composed amino acids, vitamins, prebiotics, probiotics, while control same without additive. Weight gain hot cold superior males. Carcass yield...

The Holstein and Jersey dairy cattle breeds are among the most prevalent in Brazil. To evaluate differences PTAs (predicted transmitting abilities) of these their lines, data were collected on 385 bulls 82 sires with semen commercially available from nine Brazilian companies. Three different sire lines for each breed found. general linear models method was used comparison between breeds. two presented higher average milk yield (1,061.04 pounds 975.32 pounds) lower percentage solids (from...

ABSTRACT: The present study aimed to obtain, through statistical methods, the independent variables that influence economic and productive results of Brazilian beef cattle. Economic information was collected from 106 farms in Brazil. Data collection performed by Instituto de Métricas Agropecuárias (Inttegra). variable selection method used stepwise regression followed polynomial analyses. cattle result showed positive effect disbursement per head month average weight gain. An daily gain 520...

Veterinarians, among other health professionals, are considered professionals at high risk of exposure to and contraction COVID-19. The main objective this study is assess changes in the clinical practices veterinarians during COVID-19 pandemic around prophylactic biosafety measures, as well evaluate workload cost-benefit ratio. An online questionnaire was sent veterinary from July 2020 2021 using Google Forms. A total 1134 answered on experiences pandemic. Veterinarians changed their...

ABSTRACT The aim of this work was to report the occurrence dicephalus iniodymus monauchenos in a Nellore newborn. A three-days old calf, from vitro production, with duplication head and history cesarean birth attended. On physical examination, dicephalus, monauchenos, which were almost same size shape, had four eyes ears. Computed tomography showed presence two skulls fused common occipital foramen, nasopharynxes, oropharynxes cleft lip palate right head, continued single esophagus trachea....

Dependendo de sua extensão, as lesões dificultam o movimento do animal afetado, limitando seu acesso ao alimento e à água, resultando na redução bem-estar, produção rentabilidade. Este trabalho teve como objetivo avaliar se os sistemas confinamento free-stall semiconfinamento influenciam ocorrência afecções podais no grau claudicação vacas lactantes da raça Jersey. Entre animais examinados, todos apresentaram algum tipo lesão, sendo visualizadas múltiplas maioria deles. Contudo, 86,33% dos...

The objective of this study was to evaluate the effects compaction degree and particle size on presence mycotoxins bromatological composition corn silages. Samples from 47 silos with forage silage were collected northern region Paraná State, Brazil. concentration mycotoxin in silages analyzed according both (600 kg.m-3 700 kg.m-3) size. Mycotoxins detected using enzyme-linked immunosorbent assay, test results considered positive when above detection limit 100 µg.kg-1 for deoxynivalenol, 2.5...