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The Effect of Urea Treatment on the Chemical Composition and rumen degradability of Sorghum Stover

Journal of Agricultural Science and Technology(A) 2012年第4期2卷 489-494页

作者： Selma A. B. Abdallah Amir M. Salih Department of Animal Production College of Veterinary Medicine and Animal Production Sudan University of Science andTechnology P.O. Box 204 Hilat Kuku Wehda Street Khartoum North Sudan Department of Nutrition Faculty and Animal Production University of Khartoum P.O. Box 32 Khartoum Sudan

The objectives of the study were to investigate the effects of different levels of urea treatments on chemical composition, nutritional value and rumen degradability of sorghum stover. Two groups of animals were used in this experiment. The first group, which served as control, was offered untreated sorghum stover. The other, the experiment group recived sorghum stover to which was added 2%, or 4% urea. Crude protein （CP） content of the treated sorghum was enhanced （P 〈 0.05） over the untreated one, and ranked as 7.30% and 6.05% CP for 4% and 2% respectively. Nutrient detergent fiber （NDF） content was decreased （P 〈 0.05） from 92.5% （control） to 89.8% and 87.8% for 2% and 4% urea *** extract （EE） content was decreased （P 〈 0.05） from 1.77% （control） to 1.63% and 0.82% for 2% and 4% respectively. The rumen degradability was increased （P 〈 0.05） from 59.2% （control） to 64.2%, and 67.2% for 2%, and 4% sorghum and in hours 0, 4, 8, 16, 24, 48, 72 and 96.

关键词： Sorghum stover urea treatment rumen degradability

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rumen Degradation Characteristics of Six Types of Common Roughage in Khorchin Beef Cattle in Tongliao City

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Animal Husbandry and Feed Science 2018年第3期10卷 201-205页

作者： Huo Xiaowei Wuha Gantu College of Animal Science and Technology Inner Mongolia University for Nationalities Tongliao 028000 China Epidemic Control Center of Ongniud Bannar Agriculture and Animal Husbandry Bureau Chifeng 024500 China

[Objective] The paper was to study the degradation characteristics of different types of roughage in Khorchin beef cattle. [Method] The nylon bag method was used to determine the rumen degradability of six types of roughage： dry matter （DM）, crude protein （CP）, neutral detergent fiber （NDF） and acid detergent fiber （ADF）. [Result] Among the six types of roughage, alfalfa hay had the highest effective degradability of DM and CP in rumen; followed by alfalfa block, corn silage, leymus chinensis and corn stover, and the effective degradability of rice straw was lowest. In terms of effective degradability of NDF and ADF, alfalfa hay was the most effective, while leymus chinensis was the least effective. [Conclusion] Considering degradation characteristics of six types of roughage in Khorchin beef cattle, alfalfa hay possesses the highest nutritional value, while rice straw has the lowest value.

关键词： Beef cattle rumen degradability Nylon-bag method

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