Produção animal e características do pasto de capim Piatã em sistema em integração após desbaste

• Autor(a) principal: Ferreira, Daniel Paulo
• Data de Publicação: 2020
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Repositório Institucional da UFMT
• Texto Completo: http://ri.ufmt.br/handle/1/4936
• topic: Lâmina foliar; Liteira; PB; Sombreamento; Taxa de lotação; CNPQ::CIENCIAS AGRARIAS; Leaf blade; Litter; PB; Shading; Stocking rate

The crop-livestock-forest integration (ILPF) is a sustainable production strategy, which integrates agricultural, livestock and forestry activities, carried out in the same area, in intercropping, in succession or rotation. Thus, the objective was to evaluate weight gain in beef cattle, photosynthetically active radiation, morphological characteristics, nutritional value and mass productivity of Piatã grass in a croplivestock-forest integration system. The experiment was carried out in an area of Embrapa Gado de Corte, in Campo Grande-MS (20º27 ’S and 54º37’ W, 530 m altitude), in the 2018/2019 agricultural year. The experimental design was in randomized blocks with the treatments arranged in subdivided plots, with 3 treatments in the plots (ILPF28; ILPF22; ILP) and 4 replications. The months of the cuts were January, February, March, April and May 2019, the sample points A, B, C, D, and E made up the subplots. The sampling points were located at the following distances from the eucalyptus rows: ILPF28 (7 m, 10 m, 11 m, 9 m, 4 m); ILPF22 (3 m, 7 m, 10 m, 7 m, 3 m). The sampling locations were identified by letters A, B, C, D, E (north-south direction), with points A and E closest to the trees and point C the most equidistant from the rows. Photosynthetically active radiation was evaluated; percentages of green cover and soil; grass height; presence of milkmaid; green mass productivity; percentages and dry mass of leaf blade, stem + sheath, senescent material; crude protein (PB), neutral detergent fiber (NDF), acid detergent fiber (FDA) and in vitro digestibility of organic matter (DIVMO) of the leaf blade; stocking rate, average daily gain and weight gain by area. The average shading in the ILPF22 and ILPF28 systems was 15.3% in relation to the ILP system. The percentage of litter was higher in the ILPF22 and ILPF28 systems, compared to ILP in all the evaluated months. Higher percentages of leaf blade and crude protein were obtained in February in the three systems. The stocking rate and daily weight gain were higher in the months of January and February regardless of the systems.