Results 131 to 140 of about 447 (162)

In vitro degradation of fresh substrates treated with exogenous fibrolytic enzymes

Canadian Journal of Animal Science, 2002
An exogenous fibrolytic enzyme product was applied to three different proportions of a total mixed ration (TMR) and fed to dairy cows. There was no enhancement of the hydrolytic capacity of rumen fluid from cows serving as inoculum donors as a result of enzyme supplementation.
G. R. Bowman, K. A. Beauchemin, J. A. Shelford   +2 more
openaire   +1 more source

Fibrolytic exogenous enzymes improve performance in steers fed sugar cane and stargrass

Livestock Production Science, 2003
This experiment was conducted to study the effects of fibrolytic enzymes (Fibrozyme) on gain and digestibility of steers grazing stargrass and sugar cane plus urea as a complementary forage in tropical conditions. Twenty crossed (Bos taurus×Bos indicus) steers (270±30 kg BW) were used in a grazing trial (80 days), feeding individually concentrate (1 kg/
A Gómez-Vázquez, J Pérez, G.D Mendoza, E Aranda, A Hernández   +4 more
openaire   +1 more source

Effect of exogenous fibrolytic enzymes on ruminal fermentation and nutrient digestion in dairy cows

Archives of Animal Nutrition, 2010
The aim of the present study was to examine the effects of an exogenous fibrolytic enzyme product applied to a total mixed ration (TMR) prior to feeding on ruminal fermentation, microbial protein synthesis, nutrient digestion, and milk yield and composition.
Anja, Peters, Peter, Lebzien, Ulrich, Meyer, Ulrike, Borchert, Michael, Bulang, Gerhard, Flachowsky   +5 more
openaire   +2 more sources

Fiber digestion in horses fed typical diets with and without exogenous fibrolytic enzymes

Journal of Equine Veterinary Science, 2003
Fiber digestion was characterized in 8 yearling geldings (mean initial body weight, 341 kg) fed 4 typical diets differing in ingredient composition, with and without a commercial product that contained microbial xylanase and cellulase. The experimental design was a 4 × 4 Latin square with repeated measures in which horses were fed Coastal Bermudagrass ...
M.T.M. Hainze, R.B. Muntifering, C.A. McCall   +2 more
openaire   +1 more source

Effect of exogenous fibrolytic enzymes supplementation on milk production and nutrient utilization in Murrah buffaloes

Tropical Animal Health and Production, 2010
The present study was conducted to evaluate the effect of commercial exogenous fibrolytic enzyme (EFE) mixture added at 1.5 and 3.0 g (cellulase 4,000 microM glucose/g/h + xylanase 7,990 microM xylose/g/min; 50:50 w/w) per kilogram of dry matter (DM) of feed on nutrient digestibility, milk production, milk composition, and some blood constituents in ...
Chandra, Shekhar, Sudarshan S, Thakur, Sachin K, Shelke   +2 more
openaire   +2 more sources

Effects of exogenous fibrolytic enzymes on ruminal digestibility in steers fed high fiber rations

Livestock Science, 2009
Abstract The effects of two exogenous fibrolytic enzyme products on ruminal disappearance and fermentation of oat straw-wheat middlings based diets were evaluated. Six steers (322 ± 34.4 kg body weight) fitted with ruminal cannulas were used in a 3 × 3 Latin square replicated. The treatments consisted of: 1) control, 2) Fibrozyme (2 g/kg dry matter),
G. Álvarez, J.M. Pinos-Rodríguez, J.G. Herrera, J.C. García, S.S. Gonzalez, R. Bárcena   +5 more
openaire   +1 more source

Use of exogenous fibrolytic enzymes to improve feed utilization by ruminants

2003
Research has demonstrated that supplementing dairy cow and feedlot cattle diets with fiber- degrading enzymes has significant potential to improve feed utilization and animal performance. Ruminant feed enzyme additives, primarily xylanases and cellulases, are concentrated extracts resulting from bacterial or fungal fermentations that have specific ...
Beauchemin, K.A., Colombatto, D., Morgavi, Diego, Yang, W.Z.   +3 more
openaire   +2 more sources

Effects of exogenous fibrolytic enzymes on ruminal fermentation and digestion of Guinea grass hay

Animal Feed Science and Technology, 2009
Abstract The objective was to determine the effects of an exogenous fibrolytic enzyme mixture (enzyme) on intake, digestion and ruminal fermentation of Guinea grass ( Panicum maximum var. Mombasa) hay cut at 35 and 90 d of growth using four Suffolk lambs (74.0 ± 2.01 kg body weight) fitted with ruminal and duodenal cannulae.
J.H. Avellaneda, J.M. Pinos-Rodríguez, S.S. González, R. Bárcena, A. Hernández, M. Cobos, D. Hernández, O. Montañez   +7 more
openaire   +1 more source

Effects of yeast and exogenous fibrolytic enzyme additives on lamb performance and feed efficiency

Tropical Animal Health and Production
Yeast and fibrolytic enzymes serve as additives incorporated into the nutrition of ruminants to regulate rumen fermentation and increase the digestibility of fiber, thereby enhancing the efficiency of rumen fermentation. Two experiments were conducted to assess the impact of five diets: a control diet without additives, diets with yeast (Saccharomyces ...
Renata Fróes, Leilson Bezerra, José Missasse, Daniela Castro, Analivia Barbosa, Jose Arce-Cordero, Thadeu Silva, Ricardo Portela, Tiago Cunha, Ronaldo Oliveira   +9 more
openaire   +2 more sources

Effects of Aspergillus spp. exogenous fibrolytic enzymes on in vitro fermentation of tropical forages

Journal of the Science of Food and Agriculture, 2012
AbstractBACKGROUND: Cellulose and hemicellulose are quantitatively the most important structural carbohydrates present in ruminant diets. Rumen micro‐organisms produce enzymes that catalyse their hydrolysis, but the complex network formed by structural carbohydrates and lignin reduces their digestibility and restricts efficient utilisation of feeds by ...
Facchini, Fernanda D. A., Reis, Victor R. A., Roth, Anna Paula, Magalhaes, Karla A., Peixoto-Nogueira, Simone C., Casagrande, Daniel R., Reis, Ricardo A., Polizeli, Maria de Lourdes T. M.   +7 more
openaire   +3 more sources