Production technology and quality of corn silage for feeding dairy cattle in Southern Brazil

Revista Brasileira de Zootecnia

Silva, Mábio Silvan José da²  Osmari, Milene Puntel²  Poppi, Edson Carlos¹  Jobim, Clóves Cabreira²  Tres, Tamara Tais² 

[1] Brasil, Maringá, BR;Universidade Estadual de Maringá, Maringá, BR

关键词: clustering;    inoculant;    maize;    mycotoxins;    silage production;   

DOI  :  10.1590/S1806-92902015000900001

学科分类：兽医学

来源: Universidade Federal de Vicosa

【 摘 要 】

The objective of this study was to evaluate the production practices and use of corn silage in dairy farms in Southern Brazil, and to evaluate their impact on the nutritional quality and occurrence of mycotoxins. The data were collected by application of questionnaires among the producers, and by analysis of silage samples. The variables were subjected to factorial analysis of data reduction through the principal components method, thus obtaining 84.12% of the variance associated with the location, corn hybrid, crop production management, and inoculant used, characterizing the farms into four distinct groups. In farms from Paraná, the silage production technologies were more associated with implantation and crop management processes, and investment in equipment related to ensilage/silo feed-out was less frequent. Farms of Rio Grande do Sul showed high adoption of outsourced services, self-propelled machines, bunker silos, double-sided plastic film, and inoculant to control aerobic deterioration, and the silages showed higher levels of propionic acid (7.95 g/kg DM), and lower concentrations of aflatoxins (7.7 ppb) and total mycotoxins (26.58 ppb). The farms evaluated in Southern Brazil have good production efficiency and corn silages with excellent quality, regardless of their production characteristics.

【 授权许可】

Unknown