Aspects related to production e storage of Tifton 85 bermudagrass hay with white oat IPR 126 and Guapa oversowing

• Main Authors: João Paulo Ames, Marcela Abbado Neres, Deise Dalazen Castagnara, Edleusa Pereira Seidel, Camila Andrine Hunoff, Camila Ducati, Jeferson Tiago Piano, Ivaldir Wilian Junior Machado
• Format: Article
• Language: English
• Published: Universidade Estadual de Londrina 2015-02-01
• Series: Semina: Ciências Agrárias
• Subjects: Avena sativa; Storage fungi; Penicillium sp; Neutral detergent insoluble protein
• Online Access: http://www.uel.br/revistas/uel/index.php/semagrarias/editor/submission/15128

Structural characteristics, curve dehydration, dry matter production, chemical composition, occurrence of fungi, temperature in the storage of hay bales of Tifton 85 oversowing with long-cycle oat (IPR 126) and oats for short-cycle grains production (Guapa), were evaluated. For chemical composition, the experimental design used was randomized blocks, a split-plot overtime and 3 treatments (single Tifton 85, Tifton 85 with IPR 126 oat oversowing and Tifton 85 in association with Guapa white oat and 3 assessment periods (cutting, baling and 30 days of storage) with 5 repetitions. The dry matter production was higher in single Tifton 85 compared to associations with white oat. The largest stem diameter of guapa white oat contributed to reduce losses of water in the dehydration process, with the hay in this culture system being stored under 800 g kg-1 DM. It was found that the crude protein did not differ between cropping systems, but Tifton 85 hay showed high levels of acid detergent insoluble protein and higher levels of NDF and lignin. The occurrence of fungi was higher after storage predominating fungi of the genus Penicillium.