Medidas de parâmetros fisiológicos de ovinos da raça Santa Inês criados na região semiárida nordestina.

Objetivou-se identificar o efeito do ambiente térmico sobre as características fisiológicas como medidas de adaptação de ovinos da raça Santa Inês criados na região semiárida nordestina durante o período chuvoso. O trabalho foi realizado na Fazenda Experimental da Universidade Estadual Vale do Acaraú ? UVA, em Sobral ? CE em 2 fases. Foram usadas 20 cordeiras da raça Santa Inês. Os parâmetros fisiológicos estudados foram: temperatura retal (TR), frequência respiratória (FR) e frequência cardíaca (FC). Amostras de sangue de cada animal foram coletadas para determinação de Tiroxina (T4). Foram utilizados os dados meteorológicos da Fundação Cearense de Meteorologia. O delineamento experimental utilizado foi o inteiramente casualizado. Para o Índice de Temperatura do Globo e Umidade, o maior valor foi de 84,32 à tarde. Houve diferença entre os turnos para a FR e TR. Os animais em piquete tiveram FR e FC mais baixas, já a TR foi mais elevada nos animais em gaiolas metabólicas. Nos piquetes, tiveram a FR e FC mais elevada no turno da manhã e os das gaiolas metabólicas a FR e TR foram mais elevadas à tarde. As concentrações hormonais de T4 foram maiores para os animais em gaiolas metabólicas em relação ao piquete. Os animais deste estudo conseguiram manter a homeotermia apesar do ambiente ter proporcionado um processo de estresse térmico. A elevação nas concentrações dos níveis hormonais de T4 na corrente sanguínea pode ser um parâmetro a mais na avaliação de adaptabilidade. Measurements of physiological parameters of Santa Ines sheep created in semi-arid northeastern region. Abstract: The objective was to identify the effect of thermal environment on the physiological characteristics as adaptation measures in Santa Ines sheep created in semi-arid northeastern region during the rainy season. The study was conducted at the Experimental Farm University State Valley Acaraú - UVA in Sobral - CE in two phases. We used 20 lambs Santa Ines. The physiological parameters studied were: rectal temperature (RT), respiratory rate (RR) and heart rate (HR). Blood samples from each animal were collected for determination of thyroxine (T4). We used the meteorological data of Ceará Foundation for Meteorology. The experimental design was completely randomized. Temperature Index for the Globe and humidity, the highest value was 84,32 in the afternoon. There was a significant shift for the RR and RT. The animals in a paddock and RR had lower HR, whereas the RT was higher in the animals in metabolic cages. Paddock, had the highest RR and HR in the morning and the metabolic cages to RR and RT were higher in the afternoon. The concentrations of T4 were higher for the animals in metabolic cages over the paddock. The study animals were able to maintain homeothermy although the environment have provided a process of heat stress. The increase in the concentrations of hormone levels of T4 in the bloodstream can be a parameter in the evaluation of adaptability

Medidas biométricas da carcaça de cordeiros de diferentes grupos genéticos criados no semiárido brasileiro.

Resumo: Objetivou-se determinar a morfologia da carcaça de cordeiros de diferentes grupos genéticos Morada Nova x Morada Nova, Rabo Largo x Morada Nova e Santa Inês x Morada Nova. Foram utilizados 15 cordeiros machos, não castrados, com peso vivo médio inicial de 6,7 kg, em delineamento inteiramente casualizado, com cinco repetições em cada tratamento. Os animais foram mantidos em pastagem nativa da Caatinga e ao final da tarde suplementados com volumoso e ração concentrada a base de milho, farelo de soja e calcário, com água e sal mineral à vontade. Os animais foram abatidos ao atingirem oito meses de idade, com aproximadamente 25 kg de peso vivo. Após os procedimentos de abate as carcaças foram destinadas a câmara fria por 24 horas a 4ºC e em seguida foram avaliadas, registrando-se a conformação (1= muito pobre a 5= excelente), acabamento (1 = muito pobre a 5= excelente), comprimento corporal, comprimento corporal interno, comprimento e perímetro da perna, largura de garupa, perímetro torácico e profundidade de tórax. Os dados foram submetidos à análise de variância e as médias comparadas pelo teste t de Student a 5% pelo programa estatístico SAS®. Os cordeiros mestiços apresentaram carcaças com melhor conformação, comprimento e perímetro da perna, perímetro torácico e largura da garupa, características essas relevantes em relação à produção de carne e qualidade desejável ao mercado consumidor. [Biometric measurements of carcass of lambs of different genetic groups created in the Brazilian semiarid]. Abstract: The aim was to determine the morphology of the carcass of lambs of different genetic groups Morada Nova x Morada Nova, Rabo Largo x Morada Nova and Santa Ines x Morada Nova. Were used fifteen lambs, not castrated, with an average live weight of 6.7 kg, in a randomized design with five replicates per treatment. The animals were kept on native pasture Caatinga and late afternoon fed with forage and concentrate diet based on corn, soybean meal and limestone, with acess to water and mineral salt. he animals were slaughtered when reached eight months of age with approximately 25 kg live weight. After the procedures for slaughter the carcass were destinated to cold chamber for 24 hours at 4 ° C and then were evaluated, recording itself the conformation (1 = very poor to 5 = excellent), finishing (1 = very poor to 5 = excellent) , body length, internal body length, length and perimeter of the leg, croup width, perimeter thoracic and depth of chest. Data were submitted to analysis of variance and means were compared by test t of Student at 5% by statistical software SAS®. The crossbred lambs showed carcass with better conformation, length and perimeter of the leg, thoracic perimeter and croup width, characteristics these relevant in relation to meat production and desirable quality to the consumer market

Características físicas da carne de ovinos Morada Nova alimentados com farelos de biscoito e de castanha de caju como fontes alternativas de energia.

A utilização de subprodutos industriais vem se tornando uma alternativa cada vez mais presente na dieta dos animais, por apresentar bom valor nutricional e disponibilidade para ser usado como opção de fonte energética e proteica. Objetivou-se determinar o efeito das dietas energéticas sobre as características físicas da carne de ovinos Morada Nova.Edición de las Memorias de la 25a. Reunión de la Asociación Latinoamericana de Producción Animal (ALPA), 2016, Recife, Brasil

The BINGO project: I. Baryon acoustic oscillations from integrated neutral gas observations

Context. Observations of the redshifted 21-cm line of neutral hydrogen (HI) are a new and powerful window of observation that offers us the possibility to map the spatial distribution of cosmic HI and learn about cosmology. Baryon Acoustic Oscillations from Integrated Neutral Gas Observations (BINGO) is a new unique radio telescope designed to be one of the first to probe baryon acoustic oscillations (BAO) at radio frequencies. Aims. BINGO has two science goals: cosmology and astrophysics. Cosmology is the main science goal and the driver for BINGO's design and strategy. The key of BINGO is to detect the low redshift BAO to put strong constraints on the dark sector models and test the ICDM (cold dark matter) model. Given the versatility of the BINGO telescope, a secondary goal is astrophysics, where BINGO can help discover and study fast radio bursts (FRB) and other transients, as well as study Galactic and extragalactic science. In this paper, we introduce the latest progress of the BINGO project, its science goals, describing the scientific potential of the project for each goal and the new developments obtained by the collaboration. Methods. BINGO is a single dish transit telescope that will measure the BAO at low-z by making a 3D map of the HI distribution through the technique of intensity mapping over a large area of the sky. In order to achieve the project's goals, a science strategy and a specific pipeline for cleaning and analyzing the produced maps and mock maps was developed by the BINGO team, which we generally summarize here. Results. We introduce the BINGO project and its science goals and give a general summary of recent developments in construction, science potential, and pipeline development obtained by the BINGO Collaboration in the past few years. We show that BINGO will be able to obtain competitive constraints for the dark sector. It also has the potential to discover several FRBs in the southern hemisphere. The capacity of BINGO in obtaining information from 21-cm is also tested in the pipeline introduced here. Following these developments, the construction and observational strategies of BINGO have been defined. Conclusions. There is still no measurement of the BAO in radio, and studying cosmology in this new window of observations is one of the most promising advances in the field. The BINGO project is a radio telescope that has the goal to be one of the first to perform this measurement and it is currently being built in the northeast of Brazil. This paper is the first of a series of papers that describe in detail each part of the development of the BINGO project

Estimates of genomic heritability and genome-wide association study for fatty acids profile in Santa Inês sheep

Background: Despite the health concerns and nutritional importance of fatty acids, there is a relative paucity of studies in the literature that report genetic or genomic parameters, especially in the case of sheep populations. To investigate the genetic architecture of fatty acid composition of sheep, we conducted genome-wide association studies (GWAS) and estimated genomic heritabilities for fatty acid profile in Longissimus dorsi muscle of 216 male sheep. Results: Genomic heritability estimates for fatty acid content ranged from 0.25 to 0.46, indicating that substantial genetic variation exists for the evaluated traits. Therefore, it is possible to alter fatty acid profiles through selection. Twenty-seven genomic regions of 10 adjacent SNPs associated with fatty acids composition were identified on chromosomes 1, 2, 3, 5, 8, 12, 14, 15, 16, 17, and 18, each explaining ≥0.30% of the additive genetic variance. Twenty-three genes supporting the understanding of genetic mechanisms of fat composition in sheep were identified in these regions, such as DGAT2, TRHDE, TPH2, ME1, C6, C7, UBE3D, PARP14, and MRPS30. Conclusions: Estimates of genomic heritabilities and elucidating important genomic regions can contribute to a better understanding of the genetic control of fatty acid deposition and improve the selection strategies to enhance meat quality and health attributes