Dissertation
Dissertation > Agricultural Sciences > Livestock, animal medicine,hunting,silkworm,bee > Livestock > Sheep

Study on the Optimum Allowance of Copper and Nutrition Monitoring Model in Small-fat-tail Sheep

Author LvAiJun
Tutor YangZaiBin
School Shandong Agricultural University
Course Animal Nutrition and Feed Science
Keywords Small Tailed Han Sulfur Copper Molybdenum Supply Nutrition Surveillance
CLC S826.5
Type Master's thesis
Year 2005
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Small Tailed Han, the test survey of sheep feed resources and ration formulation, liver and blood copper concentrations measured and feeding test a variety of methods, systems research breeding conditions Small Tailed Han body the the inner copper Yingque conditions; randomized trial design, Small Tailed Han daily gain in the different molybdenum, sulfur levels, blood copper, serum CPL and SOD variation identified molybdenum, sulfur under the condition of small tail cold sheep copper suitable model of supply and nutrition surveillance. Shandong Province 6 Small Tail Han sheep fed diets of copper supply Survey findings: diet formulations of copper content accounted for 41.1% of the recommended amount of copper (11mg/kg) in sheep husbandry standards recommended in Inner Mongolia, China ~ 96.5%, thus proving Small Tailed Han dietary supply is generally copper deficiency. Different Producing Small Tail Han sheep liver and blood copper concentration sampling tests and analysis found that, in addition to the Taian sheep liver copper and blood copper concentration reached normal levels of research scholars, the other two regions (Jining, Heze) sheep The two indicators can not reach the lower limit of the normal level. Small Tailed Han's coat, daily gain, serum copper concentrations than the control plus copper in Jining district 25 sheep feeding trials prove diets supplemented with different concentrations of copper (5 ~ 20mg/kg) The group had a better performance, further illustrate the Small Tail Han sheep producing areas of dietary copper deficiency affects the production level of the Small Tailed Han. Two dietary molybdenum levels (0.5mg/kg and 5.5mg/kg) and two dietary sulfur level (1.6g/kg and 3.6g/kg), add a few dietary copper, randomized trial design of different molybdenum, sulfur level, Small Tail Han sheep production performance and blood biochemical indicators show that: the molybdenum sulfur in the diet without the addition of copper does not affect serum copper concentration, serum the CPL and SOD activity (P gt; 0.05 ); respectively add molybdenum, sulfur, or simultaneously adding the molybdenum-sulfur, serum copper concentrations, serum CPL and the SOD activity with increased levels of dietary copper increased (P lt; 0.05). In copper horizontal certain, at the same time or were increased dietary molybdenum, sulfur can significantly reduce the level of the test sheep blood copper concentration, serum CPL and SOD activity (P lt; 0.05). Obtained through research on the the test sheep production performance, serum copper concentration, serum CPL and SOD activity the different molybdenum, copper sulfur levels, Han sheep model suitable supply: dietary molybdenum 0.5mg/kg and sulfur 1.6g/kg suitable copper level: 15.5mg/kg;

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