The equine is a non herbivore ruminant that is able to fully provide its nutritional need by the grass intake. Equines show the cecum and colon region plenty developed as their principal fermentation site. Such process either happens in the non glandular stomach region, but the volatile fatty acids production is inferior then the production in the – hindgut. To meet the optimum use of the mix of ingredients, and to avoid excess there are harmful to the equine metabolism, […]

The objective of this work was to evaluate the effect of association of forage cactus to sugar cane bagasse and urea on nitrogenous compounds balance and microbial protein synthesis in milk heifers supplemented or not. Twenty-five Holstein-Gir crossbred heifers with average of 227 kg of LW were used, kept in feedlot system and assigned to a randomized block design, established in accordance with the weight of animals. The control ration was composed of 64.0% of forage cactus, 30.0% of sugar […]

This work was carried out to evaluate the nutrient digestibility of forages using mobile bags technique in horses. The forages were lucerne (Medicago sativa), peanut (Arachis pintoi), desmodio (Desmodium ovalifolium), stylo (Stylosanthes guianensis), pigeon pea (Cajanus cajan), lime-yellow pea (Macrotyloma axillare) and coastcross (Cynodon dactylon cv. coastcross). A randomized block design was used with seven treatments (feeds) and five blocks (horses). Five crossbreed horses were used with age ranging from 17 to 27 years and average weight of 350 kg. […]

An experiment was carried out to evaluate the reclamation of a degraded pasture of molassesgrass (Melinis minutiflora, Beauv.), with the establishment of signalgrass (Brachiaria decumbens, Stapf), with different N doses (0, 50, 100, and 150 kg/ha.year) or in consortium with S. guianensis cv. mineirão, in a complete randomized blocks design, with three replications per treatment. Evaluations were performed during the dry season (one evaluation) and wet season (three evaluations). Nitrogen fertilization promoted increment in dry matter production and crude protein […]

A total of 60 barrow pigs (89.1 ± 4.2 kg) was used to evaluate five levels (0, 5, 10, 15 and 20%) of qualitative feed restriction, resulting in values of 3,407, 3,420, 3,060, 2,890, and 2,720 kcal/kg DE in the diet. Ten animals were slaughtered at the beginning of the experiment to determine the initial body composition, while the others were fed with the experimental diets until reaching 128 kg of body weight. A randomly block design was used to […]

The effect of fibrolytic enzymes addition (cellulase and xylanase) on the DM, CP, NDF, ADF, and hemicellulose in situ degradability of Tifton 85 hay (Cynodon spp.) cut at 30 and 90 days and sugarcane bagasse were evaluated with six bovines cannulated on the rumen. The enzymes were extracted from Aspergillus niger and Trichoderma longibrachiatum fungi and supplied 0.75 g/kg of DM/animal.day, through ruminal cannula. The incubation times were 0, 3, 6, 12, 24, 48, 72, and 96 hours. The incubation […]

This work aimed to evaluate the effect of the cutting height (10 cm and 20 cm) and cutting interval (30 days and 45 days) in the DM production of dallisgrass (Paspalum dilatatum Poir. biótipo Virasoro) cultivated under field conditions. Plants were cut between September/2003 and June/2004, nine and six times, for the 30 d and 45 d cutting interval, respectively. The total DM yield did not differ among treatments, with an average of 2,017 g DM/row. There was a significant […]

Carbohydrates can provide up to 80% of the dry matter in animal diets, yet their specific evaluation for research and diet formulation is only now becoming a focus in the animal sciences. Partitioning of dietary carbohydrates for nutritional purposes should reflect differences in digestion and fermentation characteristics and effects on animal performance. Key challenges to designating nutritionally important carbohydrate fractions include classifying the carbohydrates in terms of nutritional characteristics, and selecting analytical methods that describe the desired fraction. The relative […]

The objective of this trial was to evaluate the effect of different dietary NDF levels on carcass characteristics of feedlot lambs slaughtered with 30 kg of body weight. Twenty crossbred Ile de France x Texel non-castrated male lambs were randomly assigned to the following treatments: 25%, 31%, 37%, and 43% of dietary NDF. The forage portion of the diet was composed by sorghum silage (hybrid AG 2005 E) and the concentrate by cracked corn, soybean meal, salt, limestone, and dicalcium […]

Fifty Alpine lactating does were used to evaluate the effects of feeding different levels of forage neutral detergent fiber (FNDF) on nutrient intake and milk yield and composition. Animals were housed individually and assigned to a completely randomized design with five treatments and ten replicates. A total mixed ration, containing Tifton-85 (Cynodon sp.) hay, ground corn, soybean meal and mineral mixture was fed ad libitum. The experimental diets contained 20, 27, 34, 41 or 48% of FNDF. As dietary FNDF […]