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37 resultados encontrados.

Tipos de recurso: Libro electrónico Artículo Revista Tesis Capítulo
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Determinants of feedlot adoption by beef cattle farmers in the state of São Paulo
Artículo
Acceso abierto Artículo DOAJ
Marcelo José Carrer et al · Sociedade Brasileira de Zootecnia · 2013 · ISSN 1806-9290
The objective of this study was to identify the factors determining the adoption of feedlot by beef cattle farmers in the state of São Paulo, Brazil. For this purpose, primary data were collected among a sample of 84 fa...
LCC LCC:Animal cultureIdioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
Biomass flow in massai grass fertilized with nitrogen under intermittent stocking grazing with sheep
Artículo
Acceso abierto Artículo DOAJ
Marcos Neves Lopes et al · Sociedade Brasileira de Zootecnia · 2013 · ISSN 1516-3598
This study evaluated the biomass flow of massai grass in regrowth subjected to different nitrogen levels (control - no fertilization; 400; 800; and 1200 N kg ha-1year-1) and under rotational stocking with sheep, in a com...
LCC LCC:Animal cultureIdioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
Meat characteristics of Nellore steers fed whole cottonseed
Artículo
Acceso abierto Artículo DOAJ
Dorival Pereira Borges da Costa et al · Sociedade Brasileira de Zootecnia · 2013 · ISSN 1516-3598
The objective of this study was to evaluate the effect of addition of different levels of cottonseed (0, 14.35, 27.51 and 34.09 kg/100 kg) in the diet of Nellore steers on the meat characteristics. Thirty-six steers (ave...
LCC LCC:Animal cultureIdioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
Microbial and fermentation profiles, losses and chemical composition of silages of buffel grass harvested at different cutting heights
Artículo
Acceso abierto Artículo DOAJ
Ricardo Martins Araujo Pinho et al · Sociedade Brasileira de Zootecnia · 2013 · ISSN 1806-9290
The present study evaluated the microbial population, fermentation profile, losses and dry matter recovery, and chemical composition of silages of buffel grass at different cutting heights. To evaluate the microbial ferm...
LCC LCC:Animal cultureIdioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
Microbiological profile and aerobic stability of Tifton 85 bermudagrass silage with different additives
Artículo
Acceso abierto Artículo DOAJ
Marcela Abbado Neres et al · Sociedade Brasileira de Zootecnia · 2013 · ISSN 1516-3598
The objective of this study was to evaluate the microbiological profile and aerobic stability of silage with Tifton 85 bermudagrass and different additives and wilting. The studied treatments were: pre-drying in the sun ...
LCC LCC:Animal cultureIdioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
Residual feed intake and hematological and metabolic blood profiles of lle de France lambs
Artículo
Acceso abierto Artículo DOAJ
Edson Ferraz Evaristo de Paula et al · Sociedade Brasileira de Zootecnia · 2013 · ISSN 1806-9290
The objectives of this study were to estimate the phenotypic correlations of residual feed intake (RFI) and gross feed efficiency (GFE) with hematological and metabolic blood profiles of lambs and to determine the differ...
LCC LCC:Animal cultureIdioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
Effect of frame size on performance and carcass traits of Santa Inês lambs finished in a feedlot
Artículo
Acceso abierto Artículo DOAJ
Edmilson Lúcio de Souza Júnior et al · Sociedade Brasileira de Zootecnia · 2013 · ISSN 1516-3598
The objective of this study was to evaluate the performance, qualitative, morphometric and quantitative carcass traits of Santa Inês lambs of different frame sizes finished in a feedlot. Twenty 120-day-old intact lambs ...
LCC LCC:Animal cultureIdioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
Nonlinear models for fitting growth curves of Nellore cows reared in the Amazon Biome
Artículo
Acceso abierto Artículo DOAJ
Kedma Nayra da Silva Marinho et al · Sociedade Brasileira de Zootecnia · 2013 · ISSN 1806-9290
Growth curves of Nellore cows were estimated by comparing six nonlinear models: Brody, Logistic, two alternatives by Gompertz, Richards and Von Bertalanffy. The models were fitted to weight-age data, from birth to 750 da...
LCC LCC:Animal cultureIdioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
Performance of Nellore young bulls on Marandu grass pasture with protein supplementation
Artículo
Material complementario disponible Artículo DOAJ
Matheus Henrique Moretti et al · Sociedade Brasileira de Zootecnia · 2013 · ISSN 1516-3598
The objective of this study was to verify the effect of low-intake supplementation on performance of Nellore young bulls kept on Marandu grass pasture. The experiment was divided in two periods: the dry and rainy seasons...
LCC LCC:Animal cultureIdioma eng
Material complementario disponibleEl enlace apunta a material asociado, anexos, tablas, datos o página complementaria. No se marca como libro/texto completo.
Material complementario
Production, composition and fatty acid profile of milk and butter texture of dairy cows fed ground or pelleted concentrate with sunflower and/or lignosulfonate
Artículo
Acceso abierto Artículo DOAJ
Fábio José Ferreira Figueiroa et al · Sociedade Brasileira de Zootecnia · 2013 · ISSN 1806-9290
The objective of this study was to evaluate the milk production, composition, milk fatty acid profile, butter texture and blood parameters of Holstein cows fed corn silage and concentrate containing one of the following:...
LCC LCC:Animal cultureIdioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
Rumen fermentation and rumen microbes in Nellore steers receiving diets with different lipid contents
Artículo
Acceso abierto Artículo DOAJ
Juliana Duarte Messana et al · Sociedade Brasileira de Zootecnia · 2013 · ISSN 1516-3598
The objective of the present study was to evaluate the effects of dietary lipid content (20, 40 and 60 g/kg dry matter) on intake, total and ruminal apparent digestibility of dry matter (DM), nutrient digestibility, rume...
LCC LCC:Animal cultureIdioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
Use of orthogonal functions in random regression models in describing genetic variance in Nellore cattle
Artículo
Material complementario disponible Artículo DOAJ
Thiago Bruno Ribeiro da Silva et al · Sociedade Brasileira de Zootecnia · 2013 · ISSN 1516-3598
A total of 204,912 records of birth weights up to 550 days of age, of 24,890 Nellore cattle, offspring of 375 sires and 16,917 dams from five herds in the state of Mato Grosso, Brazil, were used in order to describe the ...
LCC LCC:Animal cultureIdioma eng
Material complementario disponibleEl enlace apunta a material asociado, anexos, tablas, datos o página complementaria. No se marca como libro/texto completo.
Material complementario
Effects of addition of fluorine in diets differing in protein content on urinary fluoride excretion, clinical chemistry and thyroid hormones in calves
Artículo
Material complementario disponible Artículo DOAJ
Jayant Lohakare et al · Sociedade Brasileira de Zootecnia · 2013 · ISSN 1806-9290
In order to compare the effects of addition of fluorine (F) in diets differing in protein content on the urinary F excretion, blood profile and thyroid hormones, 30 crossbred calves (6-8 months) initially exposed to diff...
LCC LCC:Animal cultureIdioma eng
Material complementario disponibleEl enlace apunta a material asociado, anexos, tablas, datos o página complementaria. No se marca como libro/texto completo.
Material complementario
Repeatability of agronomic characters in Brachiaria brizantha cultivars
Artículo
Acceso abierto Artículo DOAJ
Janaina Azevedo Martuscello et al · Sociedade Brasileira de Zootecnia · 2013 · ISSN 1516-3598
This experiment was carried out with the objectives of determining repeatability coefficients, the number of harvests necessary to increase accuracy and the genotypic stability of yield characteristics in Brachiaria briz...
LCC LCC:Animal cultureIdioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
The chemical composition, fermentation profile, and microbial populations in tropical grass silages
Artículo
Acceso abierto Artículo DOAJ
João Paulo Sampaio Rigueira et al · Sociedade Brasileira de Zootecnia · 2013 · ISSN 1806-9290
The objective of this study was to evaluate the fermentation profile, chemical composition and microbial population and losses in the silages of signalgrass and Mombasa grass fertilized with the following levels of nitro...
LCC LCC:Animal cultureIdioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
Use of sex-sorted and unsorted frozen/thawed sperm and in vitro fertilization events in bovine oocytes derived from ultrasound-guided aspiration
Artículo
Acceso abierto Artículo DOAJ
Salvador Ruiz López et al · Sociedade Brasileira de Zootecnia · 2013 · ISSN 1806-9290
The objective was to investigate the effects of sex-sorting on early fertilization events in ovum pick up (OPU) derived oocytes fertilized in vitro with frozen-thawed sperm at different co-incubation lengths. Eighty-four...
LCC LCC:Animal cultureIdioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
Chilled boneless beef international trade: a cluster analysis
Artículo
Material complementario disponible Artículo DOAJ
Paulo Rodrigo Ramos Xavier Pereira et al · Sociedade Brasileira de Zootecnia · 2013 · ISSN 1516-3598
The objective of this study was to measure and classify the international beef trade. For this, data related to the international chilled boneless beef (CBB) trade, the major and most important market, were analyzed. Pro...
LCC LCC:Animal cultureIdioma eng
Material complementario disponibleEl enlace apunta a material asociado, anexos, tablas, datos o página complementaria. No se marca como libro/texto completo.
Material complementario
Cattle farmers: profile and speech content analysis while undergoing training to adopt artificial insemination in Goiás State, Brazil
Artículo
Acceso abierto Artículo DOAJ
João Maurício Lucas Gordo et al · Sociedade Brasileira de Zootecnia · 2013 · ISSN 1516-3598
This study was undertaken to verify major issues present in the discourse of cattle farmers when discussing the use of artificial insemination (AI). Seventy-one beef and dairy cattle farmers in the state of Goiás, Brazi...
LCC LCC:Animal cultureIdioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
Effect of environmental factors on performance of purebred and crossbred Santa Inês lambs from birth to 154 days of age
Artículo
Acceso abierto Artículo DOAJ
Natália Albieri Koritiaki et al · Sociedade Brasileira de Zootecnia · 2013 · ISSN 1516-3598
The objectives of this study were to evaluate the environmental effects (age of dam at lambing, type of birth and sex of lamb) and genetic groups (Santa Inês and ½ Santa Inês) on weight and morphometric measurements (...
LCC LCC:Animal cultureIdioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
Effects of the spermatozoa: oocyte ratio, water volume and water temperature on artificial fertilization and sperm activation of cascudo-preto
Artículo
Acceso abierto Artículo DOAJ
Robie Allan Bombardelli et al · Sociedade Brasileira de Zootecnia · 2013 · ISSN 1516-3598
The objective of this study was to evaluate the effects of water volume and water temperature on the sperm motility duration and the number of spermatozoa, and the water volume on the fertilization rates of oocytes of Rh...
LCC LCC:Animal cultureIdioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
Growth and productive responses of tropical grass Panicum maximum to nitrate and ammonium supply
Artículo
Acceso abierto Artículo DOAJ
Jorge Henrique da Silva Santos et al · Sociedade Brasileira de Zootecnia · 2013 · ISSN 1806-9290
This study was conducted to investigate growth response parameters and forage yield of Panicum maximum Jacq. plants supplied with nitrate (NO3-) and ammonium (NH4+) as N source in a nutrient solution. Six NO3- and NH4+ c...
LCC LCC:Animal cultureIdioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
Methane emissions and estimates of ruminal fermentation parameters in beef cattle fed different dietary concentrate levels
Artículo
Acceso abierto Artículo DOAJ
Márcio dos Santos Pedreira et al · Sociedade Brasileira de Zootecnia · 2013 · ISSN 1806-9290
Using sorghum silage, the effect of roughage/concentrate ratios was evaluated on nutrient intake, digestibility, ruminal parameters and methane production by beef cattle. Three treatments (0, 30 and 60% of concentrate in...
LCC LCC:Animal cultureIdioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
Morphogenesis of native grasses of Pampa Biome under nitrogen fertilization
Artículo
Acceso abierto Artículo DOAJ
Juliana Medianeira Machado et al · Sociedade Brasileira de Zootecnia · 2013 · ISSN 1516-3598
Morphogenetic and structural characteristics of the native grasses of the Pampa Biome Andropogon lateralis, Aristida laevis, Axonopus affinis, Erianthus angustifolius, Paspalum notatum, Paspalum plicatulum, Piptochaetium...
LCC LCC:Animal cultureIdioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access
Sources of growth of bovine meat exports from Mato Grosso from 1996 to 2010
Artículo
Acceso abierto Artículo DOAJ
Josiane de Oliveira et al · Sociedade Brasileira de Zootecnia · 2013 · ISSN 1516-3598
The objective of this study is to analyze the competiveness of the Mato Grosso bovine meat in view of the international market through researching the factors that most influenced the performance of the Mato Grosso bovin...
LCC LCC:Animal cultureIdioma eng
Acceso abiertoRuta libre sin proxy. Acceso recomendado cuando no hay suscripción activa.
Open Access