The evaluation of the ingestive behavior of ruminant animals is important to identify the animal response to the particularities of the different production systems. However, the five-minute evaluation technique requires personnel, making it difficult to adhere to farms and research in more complex pastoral systems. Thus, this study objected to evaluating the influence of pasture, silvopastoral, and feedlot pro...
The purpose of this study was to evaluate the monthly milk production and quality of buffaloes from two milk production systems in the Brazilian northeast using the multivariate analysis: principal component analysis (PCA). A total of 2,506 individual milk recordings were performed in two production systems, containing information on milk production (kg day-1), fat, protein, lactose and total solids counts and ...
Objetivou-se avaliar o desempenho de bezerros em fase de aleitamento submetidos a dietas líquidas à base de leite integral ou colostro fermentado, com ou sem adição óleo de soja, e aplicação ou não de zeranol, como promotor de crescimento. O desenvolvimento dos bezerros foi avaliado entre o 15o e 60o dia de vida e as variáveis estudadas foram: peso corporal (PC), altura de cernelha (AC) e circunferência torácic...
O experimento foi realizado na Universidade Federal de Viçosa, com 40 bezerros Holandês x Zebu (HZ), advindos do Centro Nacional de Pesquisa em Gado de Leite - Embrapa, em Coronel Pacheco, Estado de Minas Gerais. Objetivou-se avaliar o desempenho dos bezerros em dietas: com o leite e/ou o colostro fermentado, com adição ou não de óleo de soja, e aplicação ou não de Zeranol, estudando o sistema digestório. Os an...
This survey aimed to characterize a Urochloa humidicola methanol extract regarding the presence of secondary metabolites classes and to determine its bromatological composition. U. humidicola samples were dried under shade, milled on a 2-mm sieve by a Willey mill. The solution obtained was filtered using filter paper and concentrated in a rotary evaporator under reduced pressure; the concentrated residue was th...
The ingestive behavior of crossbred heifers grazing on stargrass pasture was managed at two levels of light interception and two levels of post-grazing residual height. The experiment was conducted at Pesagro (Seropédica, Rio de Janeiro State) between April 2012 and January 2013. The grazing (GT), rumination (RT) and idling (IT) times were evaluated every 10 minutes throughout a 24-hour period. Forage samples w...
Aiming to characterize the cassava foliage silage, samples were collected in eight different periods according to their silage use. They were analyzed by chemical composition, quantifying fractions of nitrogen and carbohydrates compositions, and estimating parameters of the digestive kinetics of carbohydrates, through in vitro technique of gas production. The total digestible nutrients were also considered. The...
The objective of the experiment was to study the effects of replacing corn silage (CS) with cassava foliage silage (CFS) – using the upper third of the foliage – on intake and nutrient digestibility. Twelve lactating dairy cows were used in a randomized block design to evaluated intake and digestibility. The levels of replacement of CS with CFS were 0, 20, 40 and 60%. The parameters studied were: dry matter int...
The goal of work was to evaluate the utilization of equine (EF) and bovine feces (BF), obtained from the rectum, as the source of alternative inoculum to ruminal liquor (RL), for determinate the in vitro dry matter digestibility according to the technique described by Tilley and Terry, adapted to ruminal fermentation (DAISYII/ ANKOM® . One Holstein cow, donor of ruminal liquor and feces, and one Percheron m...
The objective of this paper was to evaluate the processing types and storage time of silage of superior third of cassava plant (SSTCF), through chemical composition, fractions of nitrogen and carbohydrates compositions and in vitro dry matter digestibility (IVDMD). The experiment was carried out in a completely randomized design. The treatments were defined in a 2x4 factorial array with two processing types (wh...