Brazilian Santa Inês (SI) sheep are very well-adapted to the tropical conditions of Brazil and an important source animal protein. A high rate twin births was reported in some SI flocks. Growth Differentiation Factor 9 (GDF9) Bone Morphogenetic Protein 15 (BMP15) first two genes expressed by oocyte be associated with increased ovulation sheep. All GDF9 BMP15 variants characterized, until now, present same phenotype: heterozygote ewes have mutated homozygotes sterile. In this study, we found...

Non-Gaussian outcomes are often modeled using members of the so-called exponential family. Notorious Bernoulli model for binary data, leading to logistic regression, and Poisson count regression. Two main reasons extending this family (1) occurrence overdispersion, meaning that variability in data is not adequately described by models, which exhibit a prescribed mean--variance link, (2) accommodation hierarchical structure stemming from clustering which, turn, may result repeatedly measuring...

The preslaughter handling and transport of broilers are stressful operations that might affect welfare meat quality could increase numbers deaths before slaughter. However, the influence thermal factors during transportation lairage at slaughterhouses is complex in subtropical regions, where increasing temperature high RH major concerns regarding animal survival In this study we assessed a controlled environment on mortality rates broiler chickens were transported different seasons year had...

Biological control of pests is an important branch entomology, providing environmentally friendly forms crop protection. Bioassays are used to find the optimal conditions for production parasites and strategies application in field. In some these assays, proportions measured and, often, data have inflated number zeros. this work, six models will be applied sets obtained from biological assays Diatraea saccharalis , a common pest sugar cane production. A natural choice modelling proportion...

The objective of this work was to determine the potential five species Scelionidae wasps - Telenomus podisi, Trissolcus basalis, urichi, teretis and brochymenae as natural enemies neotropical stink bug Dichelops melacanthus, if presence eggs other influences parasitism development parasitoids. Two kinds experiments were done in laboratory: without choice hosts (eggs D. melacanthus) with melacanthus Euschistus heros). Biological parameters, including proportion parasitism, immature...

A mathematical model of the hypothalamic-pituitary-adrenal (HPA) axis human endocrine system is proposed. This new provides an improvement over previous models by introducing two nonlinear factors with physiological relevance: 1) a limit to gland size; 2) rejection negative hormone concentrations. The result that far most robust; e.g., it can tolerate at least -50% and +100% perturbations any its parameters. high degree robustness allows one, for first time, features such as circadian rhythm...

This work aimed to assess the effects of preslaughter lairage time on welfare and mortality broilers transported in different farm-abattoir distances. It was evaluated 215 poultry transport trucks from a commercial slaughterhouse 2006 2007. Data were obtained holding area acclimatized through fans water misting mornings, afternoons at night. The thermal variables (temperature relative humidity), distance, density birds per cage considered analysis. distance important variation rectal...

To obtain a better performance when modeling soil spectral data for attribute prediction, researchers frequently resort to pretreatment, aiming reduce noise and highlight the features. Even with awareness of existence dimensionality reduction statistical approaches that can cope sparse dimensionality, few studies have explored its applicability in sensing. Therefore, this study’s objective was assess predictive two models are not widespread proximal sensing community: principal components...

Concerning the reduction of preslaughter death losses, high temperature and relative humidity in tropics are major concerns regarding broiler survival prior slaughtering. However, relationship between different lairage times under controlled environment thermal condition outside holding area is still unclear. Thus, aim this study was to compare intervals time with environmental poultry mortality rates. A conducted a commercial abattoir State Sao Paulo, Brazil, year 2006. The historical data...

The aim of this work was to assess the effects densities per crate on mortality rates broilers during pre-slaughter operations, under different lairage time intervals. Pre-slaughter data from 13,937 broiler flocks were recorded daily 2006, in a commercial slaughterhouse southeastern Brazil.

Os níveis de vibração e choques podem, devido ao transporte, afetar a qualidade dos ovos férteis. O objetivo desta pesquisa foi caracterizar avaliar influência das estradas sobre os no transporte A conduzida na empresa integradora avícola estado São Paulo, por meio do acompanhamento três carregamentos em diferentes estações ano (primavera, verão outono). Um caminhão climatizado tipo baú utilizado, com capacidade para 592 caixas ovos, totalizando média 90.840 ovos. As avaliações (m s-2) nas...

Mortality losses of broilers during pre-slaughter operations consists actual challenge for maintaining world leadership Brazilian poultry industry. In relation to thermal environment and its influence on abattoirs’ handling, some studies has advanced about the knowledge these variables welfare. However, few was developed in subtropical conditions, considering a joint analysis involved factors. this context, aim work assess mortality broiler chickens transported throughout daily periods...

Avaliou-se o efeito das condições ambientais da espera pré-abate na mortalidade de frangos corte, mantidos em galpão climatizado um abatedouro comercial. Foram avaliados 215 caminhões transporte comercial quanto ao número aves mortas durante as operações e à temperatura retal dos animais condição no abatedouro. Os dados foram obtidos por meio ventiladores nebulizadores, diferentes períodos: manhã, tarde noite. As variáveis térmicas, distância, tempo densidade caixa consideradas análise....

This study aimed to evaluate the effect of wood shaving bedding on pregnant sows under two housing conditions. Sixty-four animals were distributed into four treatments, each treatment included 54 split three replicates. A 2 × factorial design was used (two types housing, collective pens (CP) and combined (cages + CP [CCP]); floor, concrete floor without shavings (CFWS-) with (CFWS+), allowing establishing following combinations: CP+CFWS+, CP+CFWS-, CCP+CFWS+, CCP+CFWS-. Animal behavior, body...

Propôs-se, com esta pesquisa, avaliar a influência de diferentes idades das matrizes e tempos estocagem no número ovos trincados durante operação transporte em estradas. A pesquisa foi conduzida na empresa integradora avícola Mogi-Mirim - SP, por meio do acompanhamento três carregamentos estações ano (primavera, verão outono). Foi utilizado um caminhão climatizado tipo baú capacidade para 592 caixas ovos. Foram registrados, quatro acelerômetros, os níveis vibração (m s-2) choques percursos...

Objetivou-se, com esta pesquisa, avaliar as condições microclimáticas da sala de ovos e sua influência na perda água dos férteis em função das diferentes idades matrizes tempos estocagem. A apresentava seguintes dimensões: 15 x 9,90 2,8 m, climatizada por quatro aparelhos ar condicionados. Foram selecionadas três intervalos tempo Quando aves atingiam eram coletados 1440 ovos, foram a massa (kg) 140 individualizados cada tratamento, durante entrada saída utilizando-se uma balança...

The purpose of this paper was to observe the use bedding (wood shavings) in physiological variables that indicate thermal stress gestating sows. experiment conducted order evaluate effect two types floor (concrete and wood shavings). Worse microclimatic conditions were observed systems (P<0.05), with an increase temperature enthalpy 1.14 ºC 2.37 kJ.kg dry air-1, respectively. at dirty area higher presence comparison its absence. In spite worse bedding, rectal did not differ significantly...

Afrânio M.C. Vieiraa*, Roseli A. Leandrob, Clarice G.B. Demétriob & Geert Molenberghsc a Departamento de Estatística , Universidade Brasília ICC centro, subsolo, módulo 15, CEP, 70910-900 DF Brazil b Ciências Exatas São Paulo – ESALQ Av. Pádua Dias 11, CP 9, 13418-900 Piracicaba SP c I-BioStat Universiteit Hasselt and Katholieke Leuven Agoralaan 1, 3590 Diepenbeek Belgium

An experiment was conducted to evaluate the addition of oil resins ofsucupira (Pterodon emarginatus Vog.) and copaiba (Copaifera langsdorffii) broiler diets on chicken meat composition, quality, lipid peroxidation. 350 one-d-old chicks were submitted seven treatments, consisting supplemented with (COP) or sucupira (SUC) resin oils at three different concentrations (500, 900, 1300 ppm) plus a negative control diet (CONT). At 37 days age, 10 birds per treatment selected according average...

ABSTRACT Brazil is the world’s largest producer of passion fruit, with species Passiflora edulis Sims (yellow and purple fruit) being most popular commercially. Due to great economic importance this culture, seeking high productivity, phytotechnical quality, maintenance existing germplasms, among others, it necessary carry out studies diverse types culture. In crop, use multivariate techniques has increasingly driven on genetic differences between fruit species. Therefore, research aimed...