RESUMO -O trabalho foi desenvolvido objetivando-se avaliar o efeito da adição de uréia em doses crescentes, na presença ou ausência de urease, sobre o valor nutritivo do bagaço de cana-de-açúcar. O delineamento experimental foi inteiramente casualizado em arranjo fatorial (4 x 2) + 1 (controle), com quatro repetições. Os fatores avaliados foram níveis de uréia (2,0; 4,0; 6,0; e 8,0% da matéria seca), níveis de urease (presença, 20,0% da matéria fresca da uréia, e ausência) e um tratamento controle (0,0% de uréia e ausência de urease). Houve efeito da adição de uréia (63,3%) em relação ao controle (69,6%) e efeito da presença de urease (64,4%) em relação à sua ausência (62,1%), para o teor de matéria seca (MS). O menor teor de MS (62,5%) foi observado no nível de 6,2% de uréia. O teor de proteína bruta (PB) cresceu linearmente com a adição de uréia (12,0%) em relação ao controle (1,2%), sem urease. O teor de fibra em detergente neutro (FDN) dos materiais amonizados (81,4%) foi menor que o controle (84,7%), com efeito linear negativo das doses crescentes de uréia. Houve teores mais elevados de FDN nos tratamentos com presença de urease (82,1%) em relação aos tratamentos sem a mesma (80,8%). A digestibilidade in vitro da matéria seca (DIVMS) média do tratamento controle (23,2%) foi inferior à DIVMS média dos tratamentos com uréia (28,5%), com efeito linear positivo dos níveis crescentes de uréia. Não houve efeito da urease sobre a DIVMS do bagaço. A amonização com uréia melhorou o valor nutritivo do bagaço de cana-de-açúcar, sem a necessidade de adição de urease.Palavras-chave: amonização, bagaço, cana-de-açúcar, uréia, valor nutritivo Evaluation of the Nutritive Value of Sugarcane Bagasse Ammoniated with UreaABSTRACT -The objective of this work was to evaluate the effect of the addition of crescent levels of urea, with or without urease, on sugarcane bagasse nutritive value. The experimental design was a completely randomized design in a factorial arrangement (4 x 2) + 1 (control), with four replicates. The evaluated factors were urea levels (2.0, 4.0, 6.0 and 8.0% DM), urease levels (presence -20% of urea fresh matter -and absence) and a control treatment (0.0% urea and without urease). There was an effect of urea addition (63.3%) on the control (69.6%) and effect of urease presence (64.4%) on its absence (62.1%) for the dry matter (DM) content. The smallest estimated DM content (62.5%) was observed at 6.2% urea level. The crude protein (CP) content linearly increased with the addition of crescent levels of urea (12.0%) as compared to the control (1.2%), without urease effect. The neutral detergent fiber (NDF) content of ammoniated materials (81.4%) was smaller than the control (84.7%), with a negative linear effect of the crescent levels of urea. There was higher NDF content in the treatments with the presence of urease (82.1%) than on the treatments without urease (80.8%). The average in vitro dry matter disappearance (IVDMD) of the control treatment (23.2%) was lower than average urea addition treatments (28.5...

Tear ferning test is easy to perform, without risks to the patient. Once standardized for horses, associated or not with the program STEPanizer(©) stereology tool, it is an additional method for evaluating the ocular surface.

The aim of this research was to detect the principal reasons for condemnation of poultry carcasses in two slaughterhouses (A and B); located in the southeastern region of the State of Goiás, Brazil. The data were collected by the federal veterinary inspection services of the Brazilian RESUMO O objetivo deste trabalho foi observar as principais causas de condenações de aves, em dois abatedouros frigoríficos (A e B), localizados na região Sudeste do Estado de Goiás, Brasil. Os dados foram obtidos junto ao serviço de inspeção veterinária federal do Ministério da

The expansion of agricultural frontiers in Brazil has caused substantial changes in land use and land cover. This research aims to analyze the space-time dynamics of soybeans and cattle production in the Brazilian territory during the period 1991–2015. The spatial analysis adopted the following procedures: (a) The change vector from the annual calculation of the midpoint of production; (b) mapping of the growth and acceleration rates of the two productions, and (c) mapping of the correlation between the time series of soybean and cattle. The results showed high rates of growth and acceleration for soy production in the South, Central-West and Matopiba regions. The growth acceleration rate identified the long-term deviations that characterized the effective soybean and cattle expansion areas. The results demonstrated the effects of Brazil’s soy moratorium contained soybean expansion into the Amazon region. However, as a side effect, the soybean production replaced cattle production in the savanna region, which in turn, migrated to the Amazon rainforest. Therefore, the present study highlights the importance of public policies that comprehensively understand the spatial-temporal dynamics of Brazilian agriculture to promote sustainable land-use practices.

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Brazilian goats are generally kept in small herds and extensive rearing systems, mainly in the northeastern region of the country. Despite production improvement in recent years, the lack of pedigree control has affected genetic progress. This study aimed to validate a panel of 16 microsatellites for parentage testing in locally adapted and commercial goats breeds raised in Brazil, as well as to compare its efficiency with the panel recommended by the Brazilian Ministry of Agriculture, Livestock and Supplies (MAPA) in 2004. The number of alleles and expected heterozygosity (He) per marker ranged from four to 18, and from 0.051 to 0.831, respectively. Using all markers, 100% of parentage cases of the validation dataset were resolved with a strict confidence level of 95%. The 16 microsatellites panel showed adequate exclusion power (99.99%) and identity accuracy (99.99%). Suggestions for improvement of the marker panel endorsed by MAPA are provided.

ABSTRACT.A large herd of Nellore cattle was evaluated using indepth pedigree analyses. Taking into account the incomplete pedigree due to the use of multiple young sires for mating, the average inbreeding coefficient was calculated as 1.73% for the last generation, which was higher than the regular inbreeding coefficient (0.25%). The effective population size was estimated to be 114, 245, and 101 for the time periods 1995-1999, 1999-2003, and 2003-2007, respectively. Parameters based on the probability of gene origin were used to describe the genetic diversity over time in the herd. The effective number of founders, ancestors, and founder genomes decreased over time, showing an overall loss of genetic diversity. In the last five-year period (2003)(2004)(2005)(2006)(2007), based on available pedigree information, one prominent ancestor contributed 10.6% to the gene pool of the herd, and 30% of this pool was contributed by 31 ancestors. The analysis of inbreeding under random mating indicated that the mating strategies used in the herd are slowing down inbreeding rates. However, it is advisable to 5759 ©FUNPEC-RP www.funpecrp.com.br Genetics and Molecular Research 12 (4): 5758-5765 (2013) In-depth pedigree analysis in Brazilian Nellore continue monitoring the inbreeding rates and genetic diversity in this herd in the future.

In this study we aimed to evaluate the reduction in dimensionality of 20 linear type traits and more final score in 14,943 Holstein cows in Brazil using factor analysis, and indicate their relationship with longevity and 305 d first lactation milk production. Low partial correlations (−0.19 to 0.38), the medium to high Kaiser sampling mean (0.79) and the significance of the Bartlett sphericity test (p<0.001), indicated correlations between type traits and the suitability of these data for a factor analysis, after the elimination of seven traits. Two factors had autovalues greater than one. The first included width and height of posterior udder, udder texture, udder cleft, loin strength, bone quality and final score. The second included stature, top line, chest width, body depth, fore udder attachment, angularity and final score. The linear regression of the factors on several measures of longevity and 305 d milk production showed that selection considering only the first factor should lead to improvements in longevity and 305 milk production.