Tropical Forages
Mostrando 1-12 de 32 artigos, teses e dissertações.
-
1. Evaluating early selection in perennial tropical forages
Abstract Perennial grass hybrids of Urochloa are evaluated for at least two years during the screening stage trials (SS) and advanced trials (AD) in breeding programs, an expensive and time-consuming process. In this study, we aimed to evaluate the potential for early selection of cultivars in this breeding scheme. We used multiple measurements of agronomic
Crop Breed. Appl. Biotechnol.. Publicado em: 31/10/2019
-
2. Nitrogen management of forage grasses for nutrition, seed production, and nutrients in residual straw
Resumo: O objetivo deste trabalho foi avaliar a nutrição, a quantidade de nutrientes na palhada residual, a produtividade de sementes puras e a qualidade de sementes das gramíneas forrageiras tropicais 'Mombaça' e 'Xaraés', quando submetidos ao manejo de nitrogênio em cobertura. Foram conduzidos experimentos em campo nos municípios de Rancharia e de P
Pesq. agropec. bras.. Publicado em: 29/04/2019
-
3. VEGETATIVE DEVELOPMENT AND GROWING DEGREE-DAYS OF TROPICAL AND WINTER FORAGES
ABSTRACT One of the limitations to producing irrigated forages is setting suitable biometric parameters to establish the entrance of animals to grazing areas. Such parameters can be measured or even estimated. Estimates are advantageous for being practical and able to be used for grazing optimization. This study aimed to evaluate the correlation among growin
Eng. Agríc.. Publicado em: 25/04/2019
-
4. Research priorities for next-generation breeding of tropical forages in Brazil
Abstract Pasture is the main food source for more than 200 million cattle heads in Brazil. Although Brazilian forage breeding programs have successfully released well-adapted, high-yielding cultivars over the years, the use of genomic tools in these programs is currently limited. These tools are required to tackle the main challenges for tropical forage bree
Crop Breed. Appl. Biotechnol.. Publicado em: 2018-09
-
5. Autumn Maize Intercropped with Tropical Forages: Crop Residues, Nutrient Cycling, Subsequent Soybean and Soil Quality
ABSTRACT Autumn maize intercropped with tropical forages can raise the amount of crop residues and improve nutrient cycling, favoring subsequent soybean crop. The objective of this study was to evaluate the effect of forms of implementation of intercropping of irrigated autumn maize with tropical forages on yield, decomposition, nutrient accumulation and rel
Rev. Bras. Ciênc. Solo. Publicado em: 31/05/2016
-
6. Reducing supplementation frequency for Nellore beef steers grazing tropical pastures
Reduced supplementation frequency is a broadly applied management practice. Ruminants consuming low quality forages/pastures, supplemented less than once daily are able to maintain body weight gain (BWG), efficiency of use of dry matter, nitrogen and other nutrients, as compared with animals supplemented once daily. We evaluated the feeding behavior, dry mat
Sci. agric. (Piracicaba, Braz.). Publicado em: 2014-04
-
7. Modificações morfológicas e metabólicas em gramínea e leguminosa forrageiras tropicais relativas ao suprimento de enxofre / Metabolic and morphological changes in grass and legume tropical forages related to sulfur supply
O enxofre é um dos elementos essenciais para as plantas e as exigências nutricionais nesse nutriente variam com a espécie e a taxa de crescimento das plantas. Com o objetivo geral de avaliar o efeito da nutrição em enxofre no crescimento e no metabolismo do capimtanzânia (Panicum maximum cv. Tanzânia) e do estilosante (Stylosanthes guianensis cv. Mine
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/12/2012
-
8. Doses de concentrado com ou sem gordura inerte na dieta de vacas em lactação mantidas em pastagens tropicais / Levels of concentrate with or without inert fat for lactating dairy cows grazing tropical pastures
A suplementação de vacas em pastagens tem sido estudada com a finalidade de estabelecer a melhor relação entre quantidade e fonte de suplemento e a produção e composição do leite. A adição de fontes de lipídeos aos suplementos permite aumentar a densidade energética da dieta na tentativa de atender as exigências de vacas em lactação. No presen
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/03/2012
-
9. Aerobic fungi in the rumen fluid from dairy cattle fed different sources of forage
The objective of this study was to evaluate the aerobic microbiota of the rumen fluid from Holstein cows and heifers fed different tropical forage in the north of Minas Gerais, Brazil. A total of 30 samples of rumen fluid from cows fed with sorghum silage were collected: 32 from cows fed Brachiaria brizantha, 12 from heifers that received sorghum silage and
R. Bras. Zootec.. Publicado em: 2012-11
-
10. Nitrogen and carbohydrate fractions on Tifton-85 pastures overseeded with annual winter and summer forage species in different seasons
An experiment was conducted during the 2001-2002 winter-spring-summer to determine the nitrogen and carbohydrate fractions in Tifton-85 pastures exclusively or overseeded with oats, millet and sorghum-sudangrass hybrids. The treatments were Tifton-85 overseeded with millet + bristle oat; sorghum-sudangrass + bristle oat, on 06/19/2002 and 07/02/2002, respect
R. Bras. Zootec.. Publicado em: 2012-09
-
11. Chemical composition and ruminal degradation kinetics of crude protein and amino acids, and intestinal digestibility of amino acids from tropical forages
The objective of this research was to determine the chemical composition and ruminal degradation of the crude protein (CP), total and individual amino acids of leaves from tropical forages: perennial soybean (Neonotonia wightii), cassava (Manihot esculenta), leucaena (Leucaena leucocephala) and ramie (Boehmeria nivea), and to estimate the intestinal digestib
Revista Brasileira de Zootecnia. Publicado em: 2012-03
-
12. Evaluation of sodium sulfite and protein correction in analyses of fibrous compounds in tropical forages
The objective of this study was to evaluate the contents of fibrous compounds in tropical grasses and legumes according to utilization of sodium sulfite in the neutral detergent solution or using a procedure for contaminant protein correction. Samples of ten grasses and ten legumes were used. The contents of neutral detergent fiber were decreased when sodium
Revista Brasileira de Zootecnia. Publicado em: 2012-01