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Effect of feed additives on daily gain, digestion Coefficients, rumin fermentation and economic Efficiency of friesian calves [electronic resource].

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EI-Kousy,H.A

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Language: English Summary language: Arabic Description: p.259-270Other title:

تأثير بعض الاضافات العلفية على معدلات النمو،معاملات الهضم،مقاييس الكرش والكفاءة الافتصادية لعجول الفريزيان.‪ [Added title page title]

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Egyptian journal of nutrition and feeds, 2010 v. 13(2) [electronic resource].

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In: Egyptian Journal of Nutrition and Feeds 2010.v13(2)Summary: Twenty male Friesian calves 13 months old and a mean live body weight of 267.25Kg were randomly divided into four similar groups (five for each group) to study the effects of adding Pro-Bio-Fair (yeast culture) and fenugreek seeds on growth performance, digestibility, rumen fermentation and economic efficiency of calves. The duration of the field study was 6 months. Treatments were: T1, (control): concentrate feed mixture + berseem hay + rice straw, T2,: control ration + 109 Pro-Bio- Fair/ head! day, T2: control ration + 20g Pro-Bio-Fair / head day and T4: control ration + 3% fenugreek seeds/ head! day (as total diet DM). Results showed that T, had the highest TDNI, DCPI and SVI / head! day while no significant differences were observed among treatments in DM, OM, CF and NFE digestibility. however T, was significantly higher in CP digestibility than TI and T,. Ruminal pH in TI was significantly higher than that of the other groups. Ruminal NH, - N was non-significantly lower (P>O.05) in T" T, and T4 than T,. T4 recorded the highest TVFA's while the lowest value was recorded with T,DM, TDN and SV conversion were non significantly different among groups. The highest average total gain, daily gain and economic efficiency were recorded for T3.

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Twenty male Friesian calves 13 months old and a mean live body weight of 267.25Kg were randomly divided into four similar groups (five for each group) to study the effects of adding Pro-Bio-Fair (yeast culture) and fenugreek seeds on growth performance, digestibility, rumen fermentation and economic efficiency of calves. The duration of the field study was 6 months. Treatments were: T1, (control): concentrate feed mixture + berseem hay + rice straw, T2,: control ration + 109 Pro-Bio- Fair/ head! day, T2: control ration + 20g Pro-Bio-Fair / head day and T4: control ration + 3% fenugreek seeds/ head! day (as total diet DM). Results showed that T, had the highest TDNI, DCPI and SVI / head! day while no significant differences were observed among treatments in DM, OM, CF and NFE digestibility. however T, was significantly higher in CP digestibility than TI and T,. Ruminal pH in TI was significantly higher than that of the other groups. Ruminal NH, - N was non-significantly lower (P>O.05) in T" T, and T4 than T,. T4 recorded the highest TVFA's while the lowest value was recorded with T,DM, TDN and SV conversion were non significantly different among groups. The highest average total gain, daily gain and economic efficiency were recorded for T3.

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