| Titles |
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English :
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Effect of some yeast and minerals on the productive and reproductive performance in ruminants
1-Effect of live dried yeast supplementation on digestion coefficients, some rumen fermentation, blood constituents and some reproductive and productive parameters in Rahmani sheep
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| Abstract |
This study was performed to evaluate the influence of dietary supplementation of live dried yeast (Yea-Sacc 1026) (Saccharomyces cerevisiae) on digestion coefficients, some rumen fermentation, blood constituents and some productive and reproductive parameters in Rahmani sheep. Twenty one Rahmani ewes 2-4 years of age, 47.45±1:1.75 Kg average body weight and 2-3 parities were selected randomly and divided into three similar groups according to their body weight (7 ewes in each) with a completely randomized design .The experiment was conducted 60 days before lambing and 60 days after lambing (suckling period ). Experimental groups as follows: 1-The control group fed the basal ration without any supplementation., 2- The 1st treated group fed on control ration supplemented with 5g/h/d live dried yeast (Yea-Sacc 1026) and 3- The 2nd treated group fed on control ration supplemented with 7.5g/h/d live dry yeast (Yea-Sacc 1026). The basal ration composed of concentrate feed mixture: roughage (berseem 2nd cut + rice straw) (60:40%). Digestibility trial was carried out using nine male yearling Rahmani lambs with average weight 31.60± 0.72 kg and aged 14 months. Obtained results revealed that the digestibility of DM, CP and CF was higher with 5 and 7.5g/h/d live dried yeast supplemented groups than control group (P<0.05). Dried yeast supplementation improved nutritive value as total digestible nutrients (TDN) and digestible crude protein (DCP). Ruminal pH was higher for all groups before morning feeding then decreased at 3hrs-post feeding. Ruminal ammonia-N was lower in DY-supplemented groups than control group (P<0.05). Total VFA followed an opposite pattern (P<0.05). Total VFA had inversely relationship with ruminal pH. Concentrations of blood plasma albumin. glucose. cholesterol and AST and ALT activities were significantly different (P<0.05) during late pregnancy among the three groups. During suckling period blood plasma total protein. glucose, urea and AST concentrations were higher (P<0.05) in supplemented groups than control one. Live dried yeast supplementation had no effect on reproductive parameters. In addition 4% lat corrected milk yield. total solids(%), protein (%),avg. fat yield, avg. protein yield and avg. lactose yield were significantly higher (P<0.05) in live DY-supplemented groups than control one. Lambs weaning weight and daily gain were higher in live DY -supplemented groups than control group (P<0.05). In conclusion, supplementation of live dried yeast ( Yea - Sacc 1026) to diets of sheep at levels (5 or 7.5 g/h/d) had positive and beneficial effects on enhance digestion and nutritive values, rumen fermentation, blood constituents consequently enhance milk yield and composition as well as daily weight gain for lambs.
Keywords: Dried yeast, Rahmani sheep, digestibility, rumen fermentation, blood constituents and milk composition.
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| Publication year |
2012
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| Pages |
291-303
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| Availability location |
معهد بحوث الانتاج الحيوانى-شارع نادى الصيد- الدقى - الجيزة
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| Availability number |
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| Organization Name |
Animal Production Research Institute (APRI)
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| serial title |
Journal of American Science
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| ISSN |
1545-1003
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| Author(s) from ARC |
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| External authors (outside ARC) |
صلاح السيد رشوان
جامعة عين شمس
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| Agris Categories |
Animal feeding
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AGROVOC
TERMS |
Blood composition.
Digestibility.
Rumen digestion.
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| Proposed Agrovoc |
milk composition;Rahmani sheep;Dried yeast;
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| Publication Type |
Journal
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