https://repositorio.unimontes.br/handle/1/823 2026-04-20T08:57:18Z https://repositorio.unimontes.br/handle/1/1715 Título: Silagens de forrageiras adaptadas ao semiárido na alimentação de novilhas leiteiras Autor(es): Madureira, Mariana Rabelo Abstract: The objective of this research was to evaluate different roughages in the diet of Holstein x Zebu crossbred heifers confined in a semi-arid region. This is a meta-analysis whose database was created based on the results of research carried out by the Postgraduate Program in Animal Husbandry at Unimontes in Janaúba/MG, being used as silages: sorghum Volumax (Sorghum bicolor (L.) Moench ); sorghum biomass BRS 716 (Sorghum bicolor (L.)); BRS-capiaçu grass (Pennisetum purpureum Schum); millet (Pennisetum glaucum (L.) R. Br.); BRS-capiaçu grass (Pennisetum purpureum Schum) associated with cactus (Opuntia spp.) and sorghum biomass BRS 716 (Sorghum bicolor (L.) associated with cactus (Opuntia spp). There were differences in the consumption and digestibility of nutrients in new according to the different forages (P<0,05). In relation to ingestive behavior, the feed efficiency in MS was higher for diets with silages ofsorghum varietiesIngested in diets based on millet and sorghum Volumax. Regarding productive performance, there were no significant differences between the initial and final weights of the new products. However, the average daily weight gain (ADG) was reduced by 52.63% for the diet with BRS-capiaçu grass. It is clear that lower intake, quality and digestibility in BRS-capiaçu silage and mixed BRS-capiaçu (or BRS 716) + palm diets limit the performance of new dairy crossbreeds compared to Volumax sorghum, sorghum biomass BRS 716 silages. and Millet. 2024-08-13T00:00:00Z https://repositorio.unimontes.br/handle/1/1707 Título: Silagens de capim-BRS capiaçu em diferentes idades de cortes e aditivos Autor(es): Santos, Leandra Cristina Soares Abstract: The BRS Capiaçu grass is known for its high mass production per unit area and is suitable for silage production. However, ensiling this grass is still a challenge due to its low dry matter content (DM; less than 200 g kg-1 DM) at the time of cutting. Therefore, the use of strategies to increase DM content and reduce losses during fermentation is essential for feeding ruminants. Based on the above, the aim of this study was to evaluate the chemical-bromatological composition, fermentation characteristics and digestibility of BRS Capiaçu grass silage at different cutting ages without and with additives. The experiment was conducted in two parts, the first at EPAMIG Norte, in the Experimental Field in Montes Claros, Minas Gerais, and the other at the Food Analysis and Animal Nutrition Laboratory at Unimontes - Janauba Campus. Three regrowth ages (90, 105 and 120 days) of BRS-Capiaçu grass for silage were evaluated. At each age, the grass was ensiled without additives (Treatment 1); application of microbial-enzymatic inoculant (Treatment 2); inclusion of 10% crushed corn (1-2 mm; Treatment 2) and association of 10% crushed corn (1-2 mm) with microbial-enzymatic inoculant. A completely randomized design was used in 3 x 4 subdivided plots with five replicates. The dose of inoculant used followed the manufacturer's recommendation. For N-NH3, there was no difference between the ages of regrowth, with an average of 8.58% of total nitrogen. The use of inoculants reduced effluent losses by 23.68% (P<0.01) compared to the control silage. There was a linear reduction in effluent losses as the grass-BRS Capiaçu-grew older. In addition, the dry matter (DM) content of the silage increased significantly (P=0.02) as the age of regrowth increased. The inclusion of 10% ground corn resulted in a 20.40% increase in DM content compared to control silage and silage with inoculant (average of 23.17%). SRS Capiaçu grass silages with ground corn and those associated with ground corn and inoculant had higher dry matter digestibility and lower indigestible neutral detergent fiber levels compared to the other treatments. It is recommended to harvest BRS Capiaçu grass after 120 days of regrowth for silage production. SRS Capiaçu grass silage with a 10% inclusion of ground corn associated with bacterial-enzymatic inoculant reduces losses during fermentation, improves the fermentation profile, chemical composition and digestibility of the silage. 2024-08-08T00:00:00Z https://repositorio.unimontes.br/handle/1/1671 Título: Composição bromatológica de cultivares do capim buffel em diferentes estações do ano submetidos à adubação nitrogenada Autor(es): Barros, Isabella Coutinho de Abstract: This work aimed to evaluate the bromatological composition of Buffel grass cultivars in different seasons, subjected to nitrogen fertilization. The research was carried out at Experimental Farm EPAMIG in Nova Porteirinha-MG, from November 2008 to May 2009, in order to evaluate the effect of nitrogen fertilization on the bromatological composition of three cultivars of Buffel grass, and the effect of the seasons on them. The experimental design was in randomized blocks (RBD) in a factorial scheme 3 x 4 (three cultivars of Buffel Grass - Cenchrus ciliaris cv. Grass, C. ciliaris cv. PI 295 658 and C. ciliaris cv. Áridus, and four doses of nitrogen (0, 75, 150 and 225 kg/ ha) with three replications, totaling 36 experimental units.. Nitrogen fertilization was split in three applications (one third of the total dose) during the rainy season, after cutting of standardization, using as source of nitrogen fertilizer ammonium sulphate and applied at throw. For purposes of statistical analysis, the mean value of December/2008, January/2009, February/2009 we used characterizing the summer and March/2009, April/2009 and May/2009 characterizing the autumn. There was no effect of the interaction between the factors doses of nitrogen and cultivar. The application of Nitrogen fertilization, in the summer, provided a 30% increase in Crude Protein content, reaching maximum content of 10.90% in the dosage of 144.12 kg N/ha. The PI295658 cultivar, in the summer showed lower Crude Protein, neutral detergent insoluble nitrogen and higher contents of total carbohydrates than the Grass and Áridus cultivars. In the autumn, crude protein content was influenced by nitrogen fertilization, reaching the highest value in the dosage of 225kg N/ha. The cultivars Áridus and PI295658 showed higher values of neutral detergent insoluble nitrogen than Grass cultivar. 2010-08-30T00:00:00Z https://repositorio.unimontes.br/handle/1/1661 Título: Efeito de diferentes volumosos associados ao feno do pseudocaule da bananeira sobre a qualidade do queijo e do leite de vacas F1 holandês/zebu Autor(es): Costa, Natanael Mendes Abstract: The use of agroindustrial residues can be a strategy to reduce feed costs and environmental impact. However, the use of residues in dairy cows feeding should be evaluated in relation to milk production and quality. The objective of this study was to evaluate the association of different roughages with banana pseudostem hay on the chemical composition of milk and cheese and the fatty acid profile of F1 Holstein x Zebu cows. Two simultaneous 4 x 4 Latin squares were used, with 8 cows and 4 experimental diets: Treatment 1 - only sorghum silage as roughage; Treatment 2 –70% sorghum silage and 30% of banana pseudostem hay; Treatment 3 –70% elephant grass cv. Purple and 30% of banana pseudostem hay; Treatment 4 - 70% of sugar cane and 30% of banana pseudostem hay. In the chemical composition of cheese and milk, there was no difference between diets except for milk urea nitrogen which was higher with the grass and hay diet. This diet resulted in a lower percentage of saturated fatty acids and a higher percentage of monounsaturated fatty acids, with increased concentrations of vaccine, oleic and linoleic conjugated fatty acids in milk, contributing to the improvement of some nutritional evaluation indexes of milk lipid fraction. The hay of banana pseudostem associated or not with different roughages did not influence the chemical composition of cheese and milk of F1 Holstein / Zebu cows. 2019-07-31T00:00:00Z