Effects of Measured Outflow Rate and Reference Outflow Rate on Ruminal Effective Degradability of Common Feedstuffs of Sheep

LIU Shenghan; Cirenquzhen; ZHANG Li; DANG Shibin; MO Fang; ZHANG Wei

doi:10.3969/j.issn.1006-267x.2021.05.038

2021 , Vol. 33 >Issue 5: 2795 - 2803

DOI: https://doi.org/10.3969/j.issn.1006-267x.2021.05.038

Effects of Measured Outflow Rate and Reference Outflow Rate on Ruminal Effective Degradability of Common Feedstuffs of Sheep

LIU Shenghan ,
Cirenquzhen ,
ZHANG Li ,
DANG Shibin ,
MO Fang ,
ZHANG Wei

Expand

1. State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China;
2. Sheep Improvement Laboratory, Institute of Animal Husbandry and Veterinary, Tibet Academy of Agricultural and Animal Husbandry Science, Lhasa 850009, China

Received date: 2020-10-22

Online published: 2021-05-14

Supported by

Fold

Abstract

This experiment was conducted to determine the ruminal outflow rate of 6 kinds of common feedstuffs for semi-wool sheep, and to analyze the effects of the actual measured value and the commonly used reference value of outflow rate on the determination of the rumen effective degradability of feedstuffs. Six healthy Yunnan semi-wool male sheep at the age of 3 years and with the body weight of 63 to 65 kg were selected as experimental animals, and four of them fitted with permanent ruminal cannula. Four cannula sheep were used to determine the dry matter recovery rate of chromium mordanted feedstuffs, and twelve normal sheep were used to determine the ruminal outflow rate of soybean meal, rapeseed meal, corn, cocksfoot, soybean straw and wheat straw. The results showed as follows:1) the fecal chromium content of three chromium mordanted concentrates soybean meal, rapeseed meal and corn reached crest value at 24 to 28 h after feeding, while for three chromium mordanted roughages cocksfoot, soybean straw and wheat straw, it was 24 to 36 h. 2) There were differences in the ruminal outflow rates of different feedstuffs, the ruminal outflow rate for soybean meal, rapeseed meal, corn, cocksfoot, soybean straw and wheat straw was 7.30%/h, 7.49%/h, 6.84%/h, 5.02%/h, 5.59%/h and 3.97%/h, respectively. 3) The differences of effective degradability of dry matter, organic matter and crude protein calculated by actual measured and reference values of outflow rate were significant, and the data calculated by actual measured values were all lower than those calculated by actual measured values. It is concluded that there is significant difference between the ruminal effective degradability using actual measured value and the ruminal effective degradability using reference value. Therefore, we recommend to measure the feedstuffs ruminal outflow rate when using the rumen nylon bag method to determine the ruminal effective degradability in actual research work.

Key words： ruminal outflow rate; actual measured value; effective degradability; rumen nylon bag method; sheep

Cite this article

LIU Shenghan , Cirenquzhen , ZHANG Li , DANG Shibin , MO Fang , ZHANG Wei . Effects of Measured Outflow Rate and Reference Outflow Rate on Ruminal Effective Degradability of Common Feedstuffs of Sheep[J]. Chinese Journal of Animal Nutrition, 2021 , 33(5) : 2795 -2803 . DOI: 10.3969/j.issn.1006-267x.2021.05.038

References

[1] 颜品勋,冯仰廉,杨雅芳,等.青粗饲料蛋白质及有机物瘤胃降解规律的研究[J].中国畜牧杂志,1996,32(4):42-43. YAN P X,FENG Y L,YANG Y F,et al.Research on rumen degradation law of green roughage protein and organic matter[J].Chinese Journal of Animal Science,1996,32(4):42-43.(in Chinese)
[2] 陈晓琳,孙娟,陈丹丹,等.5种常用粗饲料的肉羊瘤胃外流速率[J].动物营养学报,2014,26(7):1981-1987. CHEN X L,SUN J,CHEN D D,et al.Ruminal outflow rates of five kinds of regular roughages in meat sheep[J].Chinese Journal of Animal Nutrition,2014,26(7):1981-1987.(in Chinese)
[3] ØRSKOV E R,MCDONALD I.The estimation of protein degradability in the rumen from incubation measurements weighted according to rate of passage[J].The Journal of Agricultural Science,1979,92(2):499-503.

[4] 中国饲料工业协会,中国农业科学院饲料研究所.饲料生物学评定技术[M].北京:中国农业科技出版社,1996. China Feed Industry Association,Feed Research Institute of Chinese Academy of Agricultural Sciences.Feed biological assessment technology[M].Beijing:China Agricuture Press,1996.(in Chinese)
[5] 颜品勋,冯仰廉,王燕兵,等.青粗饲料通过牛瘤胃外流速度的研究[J].中国动物营养学报,1994,6(2):20-22. YAN P X,FENG Y L,WANG Y B,et al.Study on the outflow rate of green roughage through the rumen of cattle[J].Chinese Journal of Animal Nutrition,1994,6(2):20-22.(in Chinese)
[6] 张丽英.饲料分析及饲料质量检测技术[M].3版.北京:中国农业大学出版社,2007. ZHANG L Y.Feed analysis and feed quality inspection technology[M].3rd ed.Beijing:China Agricultural University Press,2007.(in Chinese)
[7] UDÉN P,COLUCCI P E,VAN SOEST P J.Investigation of chromium,cerium and cobalt as markers in digesta.Rate of passage studies[J].Journal of the Science of Food and Agriculture,1980,31(7):625-632.

[8] 林春建,冯仰廉.尼龙袋法评定饲料在反刍动物瘤胃内蛋白质降解率[J].北京农业大学学报,1987,13(3):375-381. LIN C J.Estimation of protein degradability in the rumen of steers using the nylon bag techniquce[J].Acta Agriculturae Universitatis Pekinensis,1987(3):375-381.(in Chinese)
[9] 李杰,生广旭.不同粒度豆粕对绵羊瘤胃发酵及其外流速度的影响[J].东北农业大学学报,2008,39(12):62-66. LI J,SHENG G X.Effect of different particle size of soybean meal on fermentation and outflow rate in rumen of sheep[J].Journal of Northeast Agricultural University,2008,39(12):62-66.(in Chinese)
[10] 马丽娟,张乃生.狍常用饲料瘤胃外流速度和降解率测定[J].吉林农业大学学报,2010,32(1):95-99. MA L J,ZHANG N S.Measurement of outflow rate and degradation from rumen of commonly used feeds for roe deer[J].Journal of Jilin Agricultural University,2010,32(1):95-99.(in Chinese)
[11] 刘美.山羊饲料养分瘤胃降解规律的研究[D].硕士学位论文.泰安:山东农业大学,2004. LIU M.A Study on parameters in the measurement of nutrients ruminal degradability of feedstuffs for goats[D].Master's Thesis.Tai'an:Shandong Agricultural University,2004.(in Chinese)
[12] HADJIPANAYIOTOU M.Differences between rumen outflow rate of fibrous and soybean meal particles in dry Chios ewes[J].Small Ruminant Research,1997,26(1/2):193-195.
[13] SUSMEL P,STEFANON B,MILLS C R,et al.Rumen degradability of organic matter,nitrogen and fibre fractions in forages[J].Animal Science,1990,51(3):515-526.

[14] 刘建新,大久保正彦,朝日田康司.稻草饲料通过绵羊瘤胃的速度及改善方法[J].中国动物营养学报,1990,2(2):7-10. LIU J X,DA J B Z Y,CHAO R T K S.The passage rate of rice straw diet through the rumen of sheep and methods for improvement[J].Chinese Journal of Animal Nutrition,1990,2(2):7-10.(in Chinese)
[15] KUSMARTONO U,SHIMADA A,BARRY T N.Rumen digestion and rumen outflow rate in deer fed fresh chicory (Cichorium intybus) or perennial ryegrass (Lolium perenne)[J].The Journal of Agricultural Science,1997,128(1):87-94.

[16] 王兴菊.山羊常用饲料瘤胃降解率的研究[D].硕士学位论文.重庆:西南大学,2011. WANG X J.Study on the digestibility of some commom feeds of goats in rumen[D].Master's Thesis.Chongqing:Southwest University,2011.(in Chinese)

Options

Outlines

模态框（Modal）标题

Abstract

Cite this article

References