Mostafa Hossein Abadi; Taghi Ghoorchi; Abdolhakim Toghdory
Volume 24, Issue 1 , April 2022, , Pages 35-45
Abstract
Effect of Saccharomyces cerevisiae on growth performance, health index, nutrient digestibility, serum metabolites and feed consumption behavior of infant calves using 18 Simmental infant male calves aged about 20 days and initial body weight 47±2.4 kg was studied in a completely randomized design ...
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Effect of Saccharomyces cerevisiae on growth performance, health index, nutrient digestibility, serum metabolites and feed consumption behavior of infant calves using 18 Simmental infant male calves aged about 20 days and initial body weight 47±2.4 kg was studied in a completely randomized design with three treatments and six replications. Treatments included: 1- control group (without yeast), 2- treatments containing 2.5 grams of Saccharomyces cerevisiae yeast per day and 3- Treatments containing five grams of Saccharomyces cerevisiae yeast per day. The trial period was 60 days, which included a seven-day acclimatization period. Dry matter intake and daily weight gain were measured and feed conversion ratio was calculated. Digestibility of nutrients and blood metabolites were measured. Calves receiving five grams of yeast had higher weight gain and better conversion ratio (P <0.05). Blood glucose, cholesterol, triglyceride and nitrogen urea concentrations were not affected by experimental treatments. Dry matter digestibility was higher in calves consuming 5 g of yeast than the control group (P <0.05). According to the results of this study, the use of yeast improves daily weight gain and improves feed conversion ratio as well as significantly increases dry matter digestibility, so it is possible to use Sacromycis cerevisiae in the diets of suckling calves, Used at a level of five grams per day.
mostafa hosein abadi; taghi ghorchi; abdolhakim toghdari
Volume 24, Issue 1 , April 2022, , Pages 35-45
Abstract
Effect of Saccharomyces cerevisiae on growth performance, health index, nutrient digestibility, serum metabolites and feed intake behavior of dairy calves using 18 Simmental dairy male calves aged about 20 days and initial body weight 47±2.4 kg was studied in a completely randomized design with ...
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Effect of Saccharomyces cerevisiae on growth performance, health index, nutrient digestibility, serum metabolites and feed intake behavior of dairy calves using 18 Simmental dairy male calves aged about 20 days and initial body weight 47±2.4 kg was studied in a completely randomized design with 3 treatments and 6 replications. Treatments included: 1- control group (without yeast), 2- treatment containing 2.5 grams of Saccharomyces cerevisiae yeast per day and 3- treatment containing 5 grams of Saccharomyces cerevisiae yeast per day. The experimental period lasted 60 days, which the first 7 days were considered as adaptation period. Dry matter intake and daily weight gain were measured, and feed conversion ratio was calculated. Digestibility of nutrients and blood metabolites were also determined. The calves received 5 grams of yeast had higher weight gain and better feed conversion ratio (P<0.05). Blood glucose, cholesterol, triglyceride, and nitrogen urea concentrations were not affected by experimental treatments. The digestibility of dry matter was higher in dairy calves consuming 5 grams of yeast than the control group (P< 0.05). According to the results of the present study, the use of yeast increased daily weight gain and dry matter digestibility and improved feed conversion ratio. Therefore, Saccharomyces cerevisiae yeast can be used in dairy calf diets at a level of 5 grams per day
Fahima Daneshyar; S. Mohammad Hosseini; Akbar Yaghobfar
Volume 21, Issue 2 , July 2019, , Pages 233-246
Abstract
In order to determine the effect of non-starch polysaccarides on performance, energy and protein efficiencies and carcass characteristics of broiler chicks, an experiment was conducted in three periods of starter, grower and finisher period, using 420 one-day old Ross 308 broiler chicks from both sexes ...
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In order to determine the effect of non-starch polysaccarides on performance, energy and protein efficiencies and carcass characteristics of broiler chicks, an experiment was conducted in three periods of starter, grower and finisher period, using 420 one-day old Ross 308 broiler chicks from both sexes in a completely randomized design with seven treatments, six replicates and 10 chicks per replicate. The experimental treatments were basal diet, diets containing 0.10 and 0.20 percent of Saccharomyces cerevisiae yeast, diets containing 5 and 10 percent of wheat bran, diets containing three and six percent of soybean hull. The results of the experiment showed that the control treatment had the lowest feed intake during the whole period of breeding (P<0.05). The highest feed intake was related to 10 percent wheat bran and levels of 3 and 6 percent soybean hull (P<0.05). Treatments containing 3 percent soybean hull showed the highest daily weight gain (P<0.05) during the whole experiment. There is no statistical difference for the feed conversion ratio during the whole trial period. The highest relative energy efficiency related to yeast levels were compared to treatments containing wheat bran and soybean hull (P<0.05). The lowest relative energy and protein efficiency was related to 10 percent wheat bran compared to control treatment (P <0.05). The results of the experiment showed that the use of two tenths of yeast, 10 percent wheat bran and six percent soybean hull in the diet of broiler chickens is recommended.