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0.05). But it was affected by the butyrate monoglyceride (P<0.05). Daily feed intake was not affected by experimental treatments (P>0.05). Daily weight gain was not affected by probiotic and probiotic and butyrate monoglyceride interactions (P>0.05). But it was affected by the butyrate monoglyceride (P<0.05). Feed conversion ratio was not affected by treatments during the whole period (P>0.05). But in the first month it was affected by the probiotic (P<0.05). The results of this study showed that the concentration of beta-hydroxy butyric blood was not affected by the probiotic factor (P<0.05), while the butyrate supplementation factor was effective in increasing the concentration of beta-hydroxy-butyric (P<0.05). Also, there was a tendency for the probabiotic and monoglyceride butyrate interactions to be meaningful (P<0.055). The level of beta-hydroxybutyric acid indicates rumen development and the beginning of the metabolism of the final products of fermentation by rumen epithelium The results showed that digestion of calves was not affected by experimental diets (P>0.05). The interaction factor of probiotic and butyrate monoglyceride had a significant effect on blood glucose concentration (P<0.05). Also, beta-hydroxy butyric acid is affected by butyrate supplementation (P<0.05). However, experimental treatments of butyrate and probiotic (Protexin) had no effect on cholesterol, triglyceride, albumin, and total protein (P>0.05).
Conclusion The probiotic (Protexin) and the interaction factor of probiotic and butyrate monoglyceride did not affect daily intake, daily gain, final body weight of calves and feed conversion ratio, while the addition of butyrate monoglyceride in the diet affected the weight gain and calving weight of the calves daily. Nutrient utilization and digestibility of dairy calves was not affected by experimental diets. Beta-hydroxy-butyric acid was also affected by butyrate supplementation. However, experimental treatments of butyrate and probiotic (Protexin) had no effect on cholesterol, triglyceride, albumin, and total protein. In general, supplementation of the diet of infected calves with butyrate monoglycerides can have beneficial effects on the performance and development of rumen in infant calves. In general it can be concluded that butyrate monoglyceride as supplementation of the diet (milk replacer or starter diet) may enhance rumen development in Holstein suckling calves.
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0.05). The impact on the most blood metabolites except BUN, Cholesterol and ALT were also no significant (p> 0.05). As a result, no significant differences observed between coated urea with control (canola) treatments.
Conclusion it was concluded that little difference was observed in gas production results between coated urea and Optigen treatments with control (canola). And therefore to reducing feed costs and increasing the efficiency of the rumen microorganism, we can use NPN sources as a replacement for part of dietary protein.]]>
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p. 207−221
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p. 223−232
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p. 259−272
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