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Corn and sorghum are standard silage crops because of their fermentative characteristics. While corn and sorghum silages have lower crude protein (CP) contents than other crops, intercropping with legumes can increase CP content. Furthermore, one way to increase CP content is the addition of legumes to silage. Consequently, the research objective was to evaluate the fermentative and bromatological characteristics of corn (Zea mays) and sorghum (Sorghum bicolor) silages added with forage peanuts (Arachis pintoi). The experimental design was completely randomized with four replicates. The treatments consisted of corn silage, sorghum silage, forage peanut silage, corn silage with 30% forage peanut, and sorghum silage with 30% forage peanut. The results showed that the corn and sorghum added with peanut helped to improve the silage fermentative and bromatological characteristics, proving to be an efficient technique for silage quality. The forage peanut silage had lower fermentative characteristics than the corn and sorghum silages. However, the forage peanut silage had a greater CP content, which increased the protein contents of the corn and sorghum silages when intercropped with forage peanuts.

Aiming to evaluate the sorghum intercropping on the line in two seeding dephts of brachiaria species, a trial was conducted on the field in february 2009 in Rio Verde, GO. The experimental design used was randomized blocks in factorial scheme 2x3+1+3, with four replications, being made up two brachiaria sowing depths (2 and 10 cm), three brachiaria species (Brachiaria decumbens, B. brizantha cv. Marandu and B. ruziziensis) intercropped with the sorghum DKB 599, plus four additional treatments of sorghum and brachiaria monocultures. At 52 days after to harvest the sorghum grains, it was made up the cutting on brachiaria at 30 cm from the soil to explore the regrowth of plants in off-season cultivation, and further evaluation of forage yield at 36 days after the cutting. The intercropping in the line with B. brizantha, at 2 or 10 cm sowing depth, and with B. decumbens, sown at 2cm, appeared as the most promising for sorghum grain production. The brachiaria and sorghum intercropping in the line increased the total dry matter and crude protein yields. The regrowth of brachiaria plants in the intercropping showed to be a technique viable for forage production and soil cover in dry season at Brazil cerrado.

This study was developed with the purpose of evaluating the protein fractionation and in vitro di- gestibility of the dry matter (IVDMD) of millet genotypes for grazing, managed at different heights and sub- jected to several cuts. The experiment had a randomized complete block design, with repeated measures over time, four replications in a 3x3 factorial arrangement, with three cultivars of millet (ADR 500, LAB 1542 and LAB 1838) and three average cutting heights (60; 80 and 100 cm). Evaluations were undertaken through cuts in the same plots during four months. Results showed that millet genotypes were similar as for the values of pro- tein fractionation and IVDMD. The forage quality is affected by the management of cutting height, thereby it is not recommended to manage millet genotypes at 100 cm height for providing lower fraction A, B1, B2 and digestibility and higher fraction B3 and C of the forage.