Cledson Roso

Oat, triticale and rye in mixture with ryegrass: 2. Animal productivity and economic return

ABSTRACT - The experiment was conducted to evaluate the animal production and the economic result of the mixtures of oat + ryegrass (MOR), triticale + ryegrass (MTR), rye + ryegrass (MRR) in continuous grazing. Beef heifers with seven months of age and initial 140 kg LW were used. The sowing was broadcast at 04/12/96, using 85 kg/ha of oat, 170 kg/ha of triticale, 140 kg/ha of rye and 30 kg/ha of ryegrass, in the respective mixtures. The area was fertilized with 200 kg/ha of 05-20-20 and the nitrogen fertilization was of 220 kg/ha of nitrogen. The grazing period was from 05/21/96 to 11/19/96 in the MOR and MRR and from 06/04/96 to 11/19/96 in the MTR. The total dry matter (DM) yield was similar among the mixtures, 9,715, 9,752 and 9,770 kg DM/ha, respectively. There was an interaction between treatment and grazing period for average daily weight gain and stocking rate. The live weight gain/ha was 802.7 kg for MTR, 753.9 kg for MRR and 726.3 kg for MOR. The net income was R

Animal productivity and economic return in oat plus ryegrass pasture fertilized with sources of nitrogen

224,76 for MTA, being 27.52 and 15.58% superior, in relation to MOR and MRR, respectively.

Produção animal e retorno econômico em misturas de gramíneas anuais de estação fria

The objective of this experiment was to evaluate the animal productivity and economic return of the use of urea or ammonium sulfate for fertilization of oat (Avena strigosa Schreb) plus ryegrass (Lolium multiflorum Lam.) pasture. The pasture was established on 04/21/94 and the grazing period occured from 06/05 to 11/06/94. The continuous grazing method with variable stocking rate was used. The animals used were beef heifers, with 10 months of age. The amount of nitrogen used was 200 kg/ha, subdivided in three applications. The source of nitrogen did not significantly affect the average daily gain, .579 and .615 kg, the stocking rate, 873 and 842 kg of live weight/ha and the live weight gain/ha, 428 and 453 kg/ha, for urea and ammonium sulfate, respectively. Nitrogen fertilization represented 34.10 and 47.56% of the total cost of the pasture, when urea and ammonium sulfate were used, respectively. The gross income was of U

Produção e Qualidade de Forragem da Mistura de Gramíneas Anuais de Estação Fria sob Pastejo Contínuo

299.50 and 318.00/ha and the net income was of U

Desempenho e Características da Carcaça de Vacas de Diferentes Grupos Genéticos em Pastagem Cultivada com Suplementação Energética

47.90 and 1.90/ha, for urea and ammonium sulfate, respectively. Since no significant difference occurred in live weight gain/ha, the decision of using urea or ammonium sulfate for fertilization of annual winter pasture should be based on the price per kg of nitrogen.

Oat, triticale and rye in mixture with ryegrass: 1. Dynamics, forage yield and quality

The animal performance and productivity in mixtures of annual temperate grasses under continuous grazing condition were evaluated. The mixtures MTR - Triticale (X Triticosecale Wittmack) plus ryegrass (Lolium multiflorum Lam.), MOR - Oat (Avena strigosa Schreb) plus ryegrass, MTOR - Triticale plus oat plus ryegrass, were used. The broadcasting sowing was realized at 04/21/95, being fertilized with 200 kg/ha (05-30-15), being the broadcasting fertilization of 175 kg/ha of nitrogen. The beginning of the grazing occurred at 06/10/95, and was extended until 11/14/95. The average daily weight gain was similar among the mixtures, being 693, 685 and 665 g, for MTR, MOR and MTOR, respectively. The average stocking rate was superior in the MTR mixtures in relation to the others, being 1.210, 1.055 and 1.116 kg of LW/ha. The MTR mixture presented the highest live weight gain/ha (650.7 kg/ha), followed by MTOR (592.4 kg/ha) and MOR (568.8 kg/ha). The cost/ha was superior in the MTR (R

Energy supplementation for finishing cull cows of different ages on cultived winter pasture under temporary grazing

320,42), followed by MTOR (R

Lasalocida sódica suplementada via sal para fêmeas de corte mantidas em pastagem cultivada de estação fria

316,47) and MOR (R

Suplementação Energética sobre a Qualidade da Carcaça e da Carne de Vacas de Diferentes Idades, Terminadas em Pastagem Cultivada de Estação Fria sob Pastejo Horário

312,69), the net income was also higher for MTR (R

Produção Animal em Pastagem com Gramíneas de Estação Quente

167,60), followed by MTOR (R