scholarly journals Animal performance and sward characteristics of two cultivars of Brachiaria brizantha (BRS Paiaguás and BRS Piatã)

2016 ◽  
Vol 45 (3) ◽  
pp. 85-92 ◽  
Author(s):  
Valéria Pacheco Batista Euclides ◽  
Denise Baptaglin Montagner ◽  
Rodrigo Amorim Barbosa ◽  
Cacilda Borges do Valle ◽  
Nayana Nazareth Nantes
Keyword(s):  
Animal Performance ◽  
Brachiaria Brizantha

scholarly journals Animal performance and nutritional characteristics of Piatã-grass in integrated systems

2020 ◽  
Vol 72 (3) ◽  
pp. 1027-1033
Author(s):  
D.C. Martins ◽  
S.D.J. Villela ◽  
R.G. Almeida ◽  
S.A.C. Araújo ◽  
L.D. Silva ◽  
...  
Keyword(s):  
Organic Matter ◽  
Crude Protein ◽  
Nutritive Value ◽  
Soil Cover ◽  
Neutral Detergent Fiber ◽  
Integrated Systems ◽  
Animal Performance ◽  
Brachiaria Brizantha ◽  
Nutritional Characteristics

ABSTRACT The objective was to evaluate animal performance and nutritional characteristics of Brachiaria brizantha cv. BRS Piatã in two integrated systems, during the summer and winter, five years after the initial establishment of the area. The randomized block experimental design was adopted with treatments consisting of a control (five native trees per hectare) and an integrated crop-livestock-forestry (ICLF) system with 227 eucalyptus trees per hectare. Animal performance, canopy height, soil cover, forage mass (leaf, stem and senescent material), and forage nutritive value were evaluated. Differences between systems were observed in forage mass (total, leaf, stem and senescent material), soil cover and forage nutritive value in both seasons. Shading conditions provided by eucalyptus in the ICLF system lead to a reduction in forage mass and neutral detergent fiber content, and to an increase in crude protein and in vitro organic matter digestibility. However, no effect on animal performance was obtained. The presence of trees improves the forage nutritive value without impacting animal performance in integrated systems.

scholarly journals Herbage allowance effects on the characteristics of Brachiaria brizantha cv. Marandu pastures and the production and economic viability of Nellore heifersicas das pastagens de Brachiaria brizantha cv. Marandu e na produção e viabilidade econômica de novilhas Nelore

2016 ◽  
Vol 37 (4Supl1) ◽  
pp. 2301
Author(s):  
Alexandre Menezes Dias ◽  
Eva Nara Oliveira Gomes ◽  
Luís Carlos Vinhas Ítavo ◽  
José Aparecido Moura Aranha ◽  
Camila Celeste Brandão Ferreira Ítavo ◽  
...  
Keyword(s):  
Weight Gain ◽  
Nutritional Value ◽  
Structural Characteristics ◽  
Morphological Characteristics ◽  
Daily Weight Gain ◽  
Economic Viability ◽  
Animal Performance ◽  
Brachiaria Brizantha ◽  
Protein Energy ◽  
Continuous Grazing

This study aimed to evaluate the effect of three herbage allowances (5, 10, and 15 kg dry matter [DM] 100-1 of body weight [BW]) for Brachiaria brizantha cv. Marandu pastures in a continuous grazing system on the morphological and nutritional characteristics of forage, animal performance, and economic viability in Nellore heifers. The total experimental area was 60 ha, divided into 12 paddocks of 5 ha each, with 4 paddocks per treatment. The experimental animals were Nellore heifers (260 in total), with average BW of 301.16 ± 9.12 kg, receiving 0.4 % BW in multiple supplements. We evaluated the production, structural characteristics, and nutritional value of the forage, productive performance, carcass characteristics, and economic viability of each allowance. There were significant effects for the production, st uctural characteristics, and nutritional value of the forage treatment. The proportions of leaves were 42.40, 38.20, and 30.88 % and the leaf:stem ratios were 1.22, 1.03, and 0.83 for the 5, 10, and 15 kg DM 100-1 BW herbage allowances, respectively. The average daily weight gain (mean 0.42, 0.75, and 0.63 kg daily-1) and stocking rate (3.35, 1.87, and 1.26 animal unit ha-1) had a significant effect for the 5, 10, and 15 kg DM 100-1 BW forage allowance, respectively. The herbage allowances were evaluated as being economically viable with a profit margin of 10.37, 23.65, and 14.43 % for the 5, 10, and 15 kg DM 100-1 BW allowances, respectively. The greatest pasture response was found in the 5 kg DM 100-1 BW allowance and was related to better nutritional values and morphological characteristics of the pasture and greater stoking rate and weight gain per area. The herbage allowance of 10 kg DM 100-1 BW be applied to obtain higher animal performance and better economic viability of heifers in B. brizantha cv. Marandu pastures in a continuous grazing method that are receiving protein-energy supplementation.

Effects of hazardous environments on animal performance

1992 ◽  
Author(s):  
G. Carroll Brown ◽  
Dennis W. Blick ◽  
Michael R. Murphy
Keyword(s):  
Animal Performance ◽  
Hazardous Environments

THE USE OF PASTURE HEIGHT AS A PREDICTOR OF FEED LEVEL IN NORTH ISLAND HILL COUNTRY

1986 ◽  
pp. 249-253 ◽  
Author(s):  
R.W. Webby ◽  
W.J. Pengelly
Keyword(s):  
Late Spring ◽  
Animal Performance ◽  
Considerable Effort ◽  
Management Decisions ◽  
Hill Country ◽  
Visual Impact

Considerable effort is expended measuring pasture parameters that relate to animal perform mance. Traditionally farmers have used visual impact and experience as their method of pasture assessment to make management decisions. The simplest measurement collected by researchers, pasture height, is developed to the point where it can be used as a guide to predict pasture mass and animal performance. This paper presents relationships between height and mass for improved pastures in summer dry North Island hill country. A pasture 5cm tall will give hogget growth of 60 gjday in summer, 90 in autumn, 100 in winter and 200 in spring. Similarly 5cm will be 2250 kg DM/ha in summer, 1900 in autumn, 1520 in winter, 1640 in spring and 2200 in late spring. Keywords: Height, mass, predictor, grazing, quality, animal performance, feed levels, parameters, pasture.

Fertirrigação no cultivo de capim e a diversidade microbiana do solo do Cerrado antes e após a produção de biomassa vegetal

2019 ◽  
Vol 1 (2) ◽  
pp. 21-26
Author(s):  
José Geraldo Delvaux Silva ◽  
José Maria Rodrigues da Luz ◽  
Sônia Salgueiro Machado ◽  
José Expedito C. da Silva
Keyword(s):  
Brachiaria Brizantha

A fertirrigação é uma técnica de aplicação de nutrientes para plantas via água de irrigação. As águas residuárias domésticas (ARD) têm elevadas concentrações de nitrogênio (N), fósforo (P) e potássio (K), com isso surge a alternativa do reuso dessas águas como fonte de nutrientes no cultivo agrícola, reduzindo os impactos ambientes gerado por esse resíduo e diminuindo os custos na aquisição de adubos químicos na implantação das culturas. Contudo, as principais limitações do uso de ARD são a presença de sódio, e microrganismos coliformes fecais. Entretanto, estudos realizados na Universidade Federal de Tocantins têm demonstrado que o uso de ARD no solo do Cerrado para cultivo de capim tem baixo potencial de sanilização e sodificação do solo, sem alterações significativas nas propriedades físicas e químicas do solo e a biomassa vegetal não apresenta crescimento desses microrganismos. Assim, o objetivo desse estudo foi avaliar as alterações na fertilidade e na diversidade microbiana (bactérias fixadoras de nitrogênio e fungos micorrízicos) do solo do Cerrado após aplicação de ARD no cultivo de capim Brachiaria brizantha cv Marandu. Os manejos de irrigação utilizados continha 0, 20, 40 e 60 % (m/v) de fertilizantes NPK oriundos de ARD que foi aplicado após o crescimento da plântula. As composições químicas e a diversidade microbiana foram determinadas nas amostras do solo. Nas amostras da planta determinou-se a massa seca e o potencial nutricional do capim. A adição de ARD alterou a abundância bactérias e fungos, mas a diversidade não teve alterações. Esse resultado pode ser devido à maior disponibilidade de NPK no solo. Não foram observadas alterações na composição nutricional do capim após a fertirrigação. Portanto, a ARD tem potencial para ser utilizado na fertirrigação de capim em solo do Cerrado.

Animal Performance on Limpograss‐Aeschynomene and Nitrogen‐Fertilized Limpograss Pastures

1988 ◽  
Vol 80 (6) ◽  
pp. 957-962 ◽  
Author(s):  
G. A. Rusland ◽  
L. E. Sollenberger ◽  
K. A. Albrecht ◽  
C. S. Jones ◽  
L. V. Crowder
Keyword(s):  
Animal Performance

scholarly journals 6 Animal performance in grass monoculture or silvopasture systems using tree legumes

2020 ◽  
Vol 98 (Supplement_2) ◽  
pp. 18-19
Author(s):  
Izabela Aline Gomes da Silva ◽  
Jose Carlos Batista Dubeux ◽  
Alexandre C Leão de Mello ◽  
Márcio Vieira da Cunha ◽  
Mércia Ferreira dos Santos ◽  
...  
Keyword(s):  
Ecosystem Services ◽  
Experimental Design ◽  
Accumulation Rate ◽  
Average Daily Gain ◽  
Gliricidia Sepium ◽  
Tropical Region ◽  
Stocking Rate ◽  
Animal Performance ◽  
Management Option ◽  
Daily Gain

Abstract Silvopasture systems (SPS) area management option to enhance delivery of ecosystem services and diversification of income. This study evaluated productive responses of signalgrass (UrochloadecumbensStapf.) in monoculture or in SPS in the sub-humid tropical region of Brazil during six months of the rainy season. The experimental design was randomized complete block with three replications. Treatments were signalgrass + Mimosa caesalpiniifolia Benth. (SPS-Mimosa); signalgrass + Gliricidia sepium (Jacq.) (SPS-Gliricidia); and signalgrass monoculture. Cattle were managed under continuous stocking with variable stocking rate. Response variables included herbage mass (HM), herbage accumulation (HA), stocking rate (SR), average daily gain (ADG), and gain per area (GPA). Herbage mass (HM) was greater (P < 0.0001) on signal grass monoculture (2045 kg DM/ha) than in SPS (1370 kg DM/ha, average for both SPS). Herbage accumulation rate was similar for signalgrass in monoculture and SPS-Gliricidia (avg. 61 kg DM ha-1 d-1), and both were greater than SPS-Mimosa (37 kg DM ha-1 d-1). Average daily gain was greater(P < 0.0001) for SPS-Gliricidia (1.1 kg head-1 d-1), followed by signalgrass in monoculture (0.9 kg head-1 d-1), and SPS-Mimosa (0.3 kg head-1 d-1). Stocking rate ranged from 0.6 animal units (1AU = 450-kg animal) per ha in April to 2.2 AUha-1 in June. Stocking rate and animal performance per area were similar for signalgrass in monoculture and SPS-Gliricidia, and both greater than SPS-Mimosa. Gliricidia enhanced animal performance and provided ecosystem services. Mimosa, however, reduced animal performance likely due to the competition with signalgrass. Mimosa trees, however, are an important source of income (timber used for fence posts) and that might overcome the losses in animal performance.

Sign in / Sign up

Export Citation Format

Share Document