فهرست مقالات yeast culture

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  1 - Use of Yeast Culture in the TMR of Dairy Holstein Cows
  P. Dolezal J. Dolezal K. Szwedziak J. Dvoracek L. Zeman M. Tukiendorf Z. Havlicek
  The aim of this study was to determine the effect of yeast culture (Saccharomyces cerevisiae SC 47) addition in the diet of dairy cows on their rumen fermentation and milk production. Animals received a diet TMR based on good maize silage with a higher dry matter conten چکیده کامل

  The aim of this study was to determine the effect of yeast culture (Saccharomyces cerevisiae SC 47) addition in the diet of dairy cows on their rumen fermentation and milk production. Animals received a diet TMR based on good maize silage with a higher dry matter content (14 kg), 14 kg of lucerne-grass haylage, 5 kg of crushed ears of maize, 5 kg of beet pulp silage, 3 kg of crimped wheat, 2 kg of meadow hay, and 7.0 kg feed mixture.The yeast culture (5 g/day) was added to the mixture. The supplementation of yeast culture showed a positive effect on ruminal volatile fatty acids (VFA)production by the experimental group of Holstein cows in comparison with the control, higher production (P< 0.05) on sampling days 30 and 60 (114±25.44vs. 125±26.49, and 146±32.47 vs. 149±36.64, respectively). The average concentration of ammonia was higher by cows in the control group, and the difference vs. the treated group was significant. The difference in the number of protozoa of cows in the control and experimental groups was significantly (P<0.01) different (353±6.97 vs. 386±3.91ths/1 mL of rumen fluid). Average daily fat corrected milk (FCM) milk production was higher in the experimental group (38±3.33vs. 33±1.64). پرونده مقاله
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  2 - The Effect of Yeast (<i>Saccharomyces cerevisiae</i>) Culture Versus Fla-ovomycin Supplementation on Laying Hen Diets and Their Co-mparative Influence on The Late Stage Production Performnce
  H.M.A. Hewida M.H. El-Allawy A.A. El-Ghamry El-Ghamry
  The effect of yeast culture (Saccharomyces cerevisiae) supplementation on laying hen diets was tested against flavomycin supplementation during 12 weeks, using 112 Brown Bovans laying hens, 52 week-old, divided into 7 equal groups fed on a basal diet containing 18.8% cr چکیده کامل

  The effect of yeast culture (Saccharomyces cerevisiae) supplementation on laying hen diets was tested against flavomycin supplementation during 12 weeks, using 112 Brown Bovans laying hens, 52 week-old, divided into 7 equal groups fed on a basal diet containing 18.8% crude protein and 2810 kcal/kg ME (metabolizable energy) feed. Three groups were supplemented with 3 different levels of commercial yeast culture (1, 2 and 3 kg/ton) and 3 groups were supplemented with 3 different levels of flavomycin (50,75 and 100 mg/ton). ncreased levels of yeast culture supplementation significantly decreased hen-day egg production (p&lt;0.05). Flavomycin supplementation showed the same result with the exception of the group that received 75 mg/ton which showed significant (p&lt;0.05) increase in hen-day egg production. Egg mass was significantly increased (p&lt;0.05) for the group receiving 75 mg flavomycin and significantly decreased in the group receiving 3 kgyeast culture. Both yeast culture and flavomycin supplementation significantly lowered (P&lt;0.05) feed intake as mg/hen/day. Feed conversion was improved significantly (p&lt;0.05) by the addition of 2 kgyeast culture and 75 mg flavomycin per ton feed. The addition of 50 mg flavomycin improved yolk percentage significantly (P&lt;0.05). The blood constituents showed no significant differences among treatments for TP, ALand GL (P&gt;0.05) AST, ALT and Glu values showed an increasing trend, with the highest significant values (P&lt;0.05) of AST and Glu for the supplementation level of 100 mg flavomycin. Higher level of flavomycin (100 mg/ton) had adverse effects on blood plasma biochemical profile, but had no significant effects on egg production (P&gt;0.05). پرونده مقاله