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English :
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Utilization of rice straw for feeding ruminants 2- productive performance of lactating buffaloes fed rice straw silage
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Arabic :
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الاستفادة من قش الارز في تغذية المجترات: 2- الاداء الانتاجى للجاموس الحلاب المغذى علي سيلاج قش الارز
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| Abstract |
Nutritional evaluation of rice straw silage was carried out with Sakha 102 and Giza 177 varieties sprinkled by EI-Mufeed liquid and Effective Microorgansmis (EM1) with or without urea supplementation as well as untreated or ammoniated rice straw using adult Ossimi x Finnish crossbred rams. Also, feeding trial was conducted using twelve lactating buffaloes in the 3rd to the 5th of lactation season, weighing 550-650 kg used after 8 weeks of lactation start in compete switch-back design to evaluate the three experimental rations contained different forms of rice straw. The first ration (R1) contained concentrate feed mixture (CFM) and untreated rice straw (URS), the second ration (R2) contained CFM and ammoniated rice straw (ARS), while the third ration (R3) contained CFM and rice straw silage (RSS).
Giza 177 rice straw silage with EM1 and urea supplementation had significantly (P<0.05) the highest digestibility coefficients of DM, DM and NFE and subsequently TDN, DE and DCP values. Moreover, nutrients digestibility and nutritive values increased significantly (P<0.05) with urea supplementation. Rice straw silage recorded significantly the highest digestibility coefficients of all nutrients except EE and subsequently nutritive values followed by ammoniated rice straw.
The digestibility coefficients of DM for R3 and OM, CP and NFE and (subsequently TDN, DE and DCP values) for R2 and R3 were significantly (P<0.05) higher compared to R1. However, CF and EE digestibilities were nearly similar for the different rations.
Buffaloes fed R1 showed the highest intake of CFM compared with those fed R2 or R3. Moreover, lactating buffaloes fed R1 recorded significantly (P<0.05) the highest DM intake and the lowest DCP intake, followed by those fed R2 while those fed R3 showed the opposite trend. Buffaloes fed R3 recorded significantly (P<0.05) the highest concentrations of TVFA's and ammonia-N followed by those fed R2, while buffaloes fed R1 had the lowest concentrations.
Lactating buffaloes fed R2 and R3 showed significantly (P<0.05) the higher daily milk yield compared to those fed R1. However, there were no significant (P<0.05) differences in milk composition. Buffaloes fed R2 and R3 had better feed conversion for DM, TDN and DE compared to those fed R1. Average daily feed cost and feed cost /1 kg 7% FCM were significantly higher, while the output of milk yield, net output and net output improvement were significantly lower for buffaloes fed R1 compared with those fed R2 and R3.
Keywords: Rice straw silage, Ammoniated rice straw, Nutritive values, Effective microorganisms, Lactating buffaloes, Milk yield, Feed and economic efficiencies.
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| Publication year |
2006
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| Pages |
5025-5038
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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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| City |
المنصورة
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| serial title |
Journal Agricultural Science Mansoura University
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| ISSN |
1110-0346
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| Author(s) from ARC |
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| Agris Categories |
Animal feeding
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AGROVOC
TERMS |
Feed conversion efficiency.
Milk yield.
Nutritive value.
Productivity.
Rice straw.
Ruminants.
Water buffaloes.
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| Proposed Agrovoc |
rice straw silage;Ammoniated rice straw;Effective microorganisms;
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| Publication Type |
Journal
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