Time filter

Source Type

Aracaju, Brazil

de Abreu M.L.T.,DZO UFPI | Donzele J.L.,DZO UFV | Saraiva A.,Zootecnia | de Oliveira R.F.M.,DZO UFV
Revista Brasileira de Zootecnia

The effect was asessed of adding glutamine, nucleotides and spray-dried swine plasma on the performance, intestinal mucosal structure and immune response of piglets weaned at twenty one days. Two hundred and fifty two piglets, initial weight 6.35 ± 0.80 kg, were used placed in a randomized complete block deaign conducted in seven treatments, six replications and six animals per experimental unit. The initial weight of the animals was considered in the formation of the blocks. The treatments consisted of: the control diet, diet with 1.0% glutamine, diet with a commercial nucleotide product, diet with 2.0% swine plasma, diet with 4.0% swine plasma, diet with 2.0% swine plasma and 1.0% glutamine, diet with 2.0% swine plasma and commercial nucleotide product (PN). The diets with swine plasma gave the greatest weight gains to the piglets at 35 and 42 days of age. In the first fourteen days, with exception of piglets in treatment PN, all piglets fed diets with plasma had higher intake (IRD). The best results for daily weight gain (WGD) were obtained with diets with nucleotides, 2% and 4% plasma, Plasma + glutamine and plasma + nucleotides. The feed:gain ratio (FGR) of the animals was not effected by the experimental diets in the first two weeks after weaning. In the whole period (21 to 42 days of age) the best results for intake and weight gain were observed with the supply of diets with 2% swine plasma and plasma + glutamine. The animals fed the control diet presented the worst performance results. The animals fed diets with glutamine, 2% plasma and plasma + nucleotides presented the best feed conversion throughout the experimental period. The villous height, crypt depth and the leukocyte and lymphocyte populations were not influenced by the treatments. The use of glutamine, nucleotide and swine plasma improves the performance of piglets weaned at 21 days of age. © 2010 Sociedade Brasileira de Zootecnia. Source

Bruhn F.R.P.,Federal University of Pelotas | Lopes M.A.,Federal University of Lavras | Faria P.B.,Federal University of Lavras | Junqueira L.V.,Zootecnia | Da Rocha C.M.B.M.,Federal University of Lavras
Revista Brasileira de Medicina Veterinaria

The aim of this study was to determine which socioeconomic factors are related to the decision to purchase meat with certification of origin, as well as raising the profile of perception and attitude of consumers of beef in Cuiabá, MT. We performed a description of the variables and built Generalized Estimating Equations (GEE) logistic regression model using the statistical package SPSS 18.0, to identify possible associations between socio-demographic characteristics and other variables raised through interviews among 418 respondents in March 2012. The place of acquisition of the flesh was the attribute that most influences the purchasing decisions of consumers. Most respondents never heard about bovine traceability. Among those who have heard about traceability, most would be willing to pay more for meat with certification of origin, although considering that there are disadvantages associated with traceability, especially in relation to the increase in the price of meat. Consumers with higher education and income were more knowledgeable about this type of certification, and these factors are of great influence on the acceptability of consumers to pay more for traced beef. Source

Leite J.R.S.,Engineering Agricola | Furtado D.A.,Federal University of Campina Grande | Leal A.F.,Federal University of Campina Grande | Souza B.B.,Federal University of Campina Grande | da Silva A.S.,Zootecnia
Revista Brasileira de Engenharia Agricola e Ambiental

The objective of this work was to determine the thermal comfort indexes and their effects on physiological parameters of native goats raised in confinement in the Cariri region of Paraíba state. In this study 36 noncastrated male animals, were used, 12 per genetic group, which were Moxotó, Azul and Graúna, with an average weight of 16.6 ± 1.7 kg, distributed in a completely randomized design in 3 × 5 factorial arrangement (three breeds and five observation times). The studied environmental data were collected by an electronic data acquisition model CR1000. To evaluate the physiological parameters rectal temperature, respiratory frequency and surface temperature were measured three days a week from 6 a.m to 6 p.m with an interval of three hours. Environmental parameters increased from 12 h to reach critical values at 3 p.m, characterizing a situation of thermal discomfort. The animals could maintain a rectal temperature within normal limits, but with increasing respiratory frequency. The superficial temperature did not very among races. The animals of breed Graúna presented higher daily weight gain during the experimental period in comparison to other breeds. Source

Brandao F.S.,Federal University of Rio Grande do Sul | Ceolin A.C.,Federal University of Rio Grande do Sul | Gianezini M.,Ciencias Sociais Aplicadas | Ruviaro C.F.,Zootecnia | And 2 more authors.
Coffee Science

This paper aims to verify whether the Regional Orientation Index (ROI) can assist in decision making for export market orientation for Brazilian coffee, to export the searching products from the major importers. The Decision Making Theory was adopted and through the descriptive and quantitative method, the ROI is calculated in order to determine if Brazilian coffee exports are being addressed to the main importers. The data source of Brazilian green coffee used is the ALICEWEB base, linked to the Department of Commerce (SECEX) of the Ministry of Industry and Trade (MDIC) for the period studied from 2000 to 2009 in US dollars (USD). We observed that coffee exports have been less directed towards countries like Canada, Netherlands, France, Italy, Belgium and Spain, with emphasis on decline of the ROI in Slovenia. The results also show that the Brazilian green coffee have been exported for Sweden, Finland, Japan, Germany, USA. The ROI shows increasing values for these regions, noting that over 40% of coffee imports are represented by Germany and USA, which are important markets for Brazil to follow when directing their exports. The originality of this study is to assist the decision makers through the ROI methodology for export market orientation for Brazilian coffee, according to the behavior and development of exports. This approach along with other economic indicators may indicate possibilities related to the implementation of trade policies in order to redirect products to specific markets. Source

Da Silva B.A.,Federal University of Grande Dourados | De Oliveira M.V.M.,State University of Mato Grosso do Sul | Filho P.M.,Zootecnia | Luz D.F.,Federal University of Mato Grosso | And 3 more authors.
Semina:Ciencias Agrarias

This study evaluated the effect of diets containing fresh sugar cane associated with urea and/or calcium oxide on the productive performance, milk composition and feed digestibility in Girolando dairy cows. The experiment lasted 84 days. Animals were feedlot using a tie stall system and assigned to the following treatments: Fresh sugarcane (Ca); Fresh sugarcane with Urea (CaUr); Sugarcane hydrolyzed with Calcium oxide (CaCal) and Sugarcane hydrolyzed with Calcium oxide plus Urea (CaUrCal). Four multiparous cows, with 21 days postpartum, were distributed in a 4×4 Latin Square. The experimental period was 21 days; the first 14 days for adaptation of animals to diets, and seven days for data collection. Data were subjected to analysis of variance and the means were compared by Tukey's test (P<0.05). The intake was not influenced by the diets and the best feed efficiency was foundin animals fed the diet CaUrCal (1.25 kg milk/kg DM). Differences were detected between the treatments for the non-fiber carbohydrate digestibility, in which the diet based on CaCal exceeded CaUr. Serum glucose and urea were similar between treatments, but the excretion of urea and urinary nitrogen was higher in animals fed CaCal than CaUr and Ca. The use of diets containing sugarcane associated with urea and calcium oxide had no influence on milk composition and production. Source

Discover hidden collaborations