|
|
|
|
|
| Studies on Wool-Eating Ailment in Guizhou Semi-Fine Wool Sheep |
| SHEN Xiao-yun |
1.College of Chemistry & Chemical Engineering, Chongqing University of Science and Technology
2.Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences
3.Pratacultural Ecology Institute, Bijie University |
|
|
|
摘要 The clinical symptoms of a disorder which is known locally as “wool-eating ailment” in Guizhou semi-fine wool sheep in the Weining County of Guizhou Province, China, are poor weight gain, lost appetite, pica, emaciation, and wool-eating. The mineral composition of forage, and samples of blood, liver and wool from Guizhou semi-fine wool sheep in affected ranches were compared with those from the unaffected areas. The mean concentration of iron in forage from affected pasture was significantly higher than that from the unaffected pasture. The mean concentration of sulfur in forage from the affected and unaffected pasture was similar and within normal ranges. The mean concentration of sulfur in blood, liver and wool from the affected Guizhou semi-fine wool sheep was significantly lower than that from the unaffected sheep while the content of iron in blood, liver and wool from the affected sheep was significantly higher than that from the unaffected sheep. Oral administration of calcium sulfate prevented and cured the disease. We concluded that the disease of Guizhou semi-fine wool sheep in the Weining County is due to S deficiency caused by the high Fe in forages.
Abstract The clinical symptoms of a disorder which is known locally as “wool-eating ailment” in Guizhou semi-fine wool sheep in the Weining County of Guizhou Province, China, are poor weight gain, lost appetite, pica, emaciation, and wool-eating. The mineral composition of forage, and samples of blood, liver and wool from Guizhou semi-fine wool sheep in affected ranches were compared with those from the unaffected areas. The mean concentration of iron in forage from affected pasture was significantly higher than that from the unaffected pasture. The mean concentration of sulfur in forage from the affected and unaffected pasture was similar and within normal ranges. The mean concentration of sulfur in blood, liver and wool from the affected Guizhou semi-fine wool sheep was significantly lower than that from the unaffected sheep while the content of iron in blood, liver and wool from the affected sheep was significantly higher than that from the unaffected sheep. Oral administration of calcium sulfate prevented and cured the disease. We concluded that the disease of Guizhou semi-fine wool sheep in the Weining County is due to S deficiency caused by the high Fe in forages.
|
|
Received: 08 October 2010
Accepted:
|
| Fund: This work was supported financially by the National Natural Science Foundation of China (40930533/ D011004), the China Agriculture Research System (CARS-40-30), the Science Foundation of Bijie District Grant, China (200905), the Guizhou Provincial Key Technologies R&D Program, China (NY[2010]3041), and the Guizhou Governor Foundation, China (2009129). |
|
Corresponding Authors:
Correspondence SHEN Xiao-yun, Professor, Ph D, Tel: +86-857-8237082, Fax: +86-857-8238478, E-mail: bijieshenxy@163.com
E-mail: bijieshenxy@163.com
|
| About author: SHEN Xiao-yun, Professor, Ph D, Tel: +86-857-8237082, Fax: +86-857-8238478, E-mail: bijieshenxy@163.com |
Cite this article:
SHEN Xiao-yun .
2011.
Studies on Wool-Eating Ailment in Guizhou Semi-Fine Wool Sheep. Journal of Integrative Agriculture, 10(10): 1618-1623.
|
| [1]Ah B, Li J. 1955. Young Animal Infectious Disease. Animal Husbandry and Veterinary Book Press, Moscow. pp. 157- 159. (in Russian) [2]Arthington J D, Corah L R. 1995. Liver Biopsy Procedures for Determining the Trace Mineral Status in Beef Cows; Part (Video Al 8134). Extension TV, Deptartment of Communications, CooperativeExtension Service, Kansas State University, Manhattan. Arthington J D, Rechcig J E, Yost G P, McDowell L R, Fanning M D. 2002. Effect of ammonium sulfate fertilization on bahiagrass quality and copper metabolism in grazing beef cattle. Journal of Animal Science, 80, 2507-2512.[3]Bird P R. 1970. Sulfur metabolism and excretion studies in ruminants. . The effect of sulphur intake on the availability of copper in sheep. Proceedings of the Australian Society of Animal Production, 8, 212-218. [4]Gallaher R N, Weldon C O, Futral J G. 1975. An aluminum block digester for plant and soil analysis. Soil Science Society of America Proceedings, 39, 803-806. [5]Guo B L. 2004. Advances on sulfur nutrition of sheep and goats. Chinese Journal of Animal Science, 40, 42-44. (in Chinese) [6]Hambleton L G. 1977. Semiautomated method for simultaneous determination of phosphorus, calcium and crude protein in animal feeds. Journal of the Association of Official Analytical Chemists, 60, 845-852. [7]Huang Y D, Chen H T. 2001. Studies on the pathogenesis of Shimao zheng in sheep and goats. Veterinary Research Communications, 25, 631-640. [8]Huang Y D. 2002. An experimental study on the treatment and prevention of Shimao zheng (fleece-eating) in sheep and goats in the Haizi Area of Akesai County in China. Veterinary Research Communications, 26, 39-48. [9]Li Y Y, Yang Y L. 1994. Animal General Medicine. Jilin Science and Technology Press, Jilin, China. pp. 165-176. (in Chinese) [10]Liu C S. 1980. Report of investigation on the disease of stomach hair ball in lamb. Veterinary and Animal Husbandry Scientific Communications, 2, 43-50. (in Chinese) [11]Luo H L, Huang Y D, Zhang Y J, Zhang Y J. 2001. The contents of sulphur and nitrogen in water, soil and forage of alpine meadow during warm and cold season. Prataculture Science, 18, 39-45. (in Chinese) [12]Moore J E, Mott G O. 1974. Recovery of residual organic matter from in vitro digestion of forage. Journal of Dairy Science, 57, 1258-1259. [13]Salmela S, Vuori E, Kilpio J O. 1981. The effect of washing procedures on trace element content of human hair. Analytica Chimica Acta, 125, 131-137. [14]Shi J J L X. 1974. Animal Health. Yang Xian Tang Press, Japan. pp. 384-385. (in Japanese) [15]Suttle N F.1999. The Mineral Nutrition of Livestock. 3rd ed. CABI Publishing, London. pp. 243-303.[16]Tilley J A, Terrry R A. 1963. A two-stage technique for the in vitro digestion of forage crops. Grass and Forage Science, 18, 104-111. [17]Wen F W, Zhang S D, Zhang H W, Lu T A, Jiang D R. 1983. The study on total sulphur estimating method in wool, feeds, and blood. Journal of Gansu Agricultural University, 4, 29-37. (in Chinese) [18]Whetter P A, Ullrey D E. 1978. Improved fluorometric method for determing selenium. Journal of the Association of Official Analytical Chemists, 61, 927. Yang Z Q. 1998. Microelements and Animal Disease. Agricultural Press, Beijing. pp. 116-118. (in Chinese) [19]Zhang W, Wang R L, Gao Z G, Jia Z H, Zhu X P. 2008. Influence of different ratios of nitrogen and sulfur on performance and nutrient utilization in sheep. Journal of China Agricultural University, 13, 49-52. (in Chinese) |
| No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
