| Based on deer industry present situation home and abroad and seriously analyzingresearch level and advance of crossing utilization, meat performance, visceral in domesticdeer, in order to solve problems about Gansu wapiti production, this paper was carriedout to determine growth and development status and antler production of 1～2 years oldF1 crossed Tian and Gan deer in Sunan deer farm, study meat performance, meat qualityand visceral structural of 3～4 and 7～10 years old Gansu wapiti. The results are asfollows:(1) F1 crossed Tian and Gan deer was better than Gansu wapiti in situation ofgrowth and development. Body weight of hybrid stags (90.38±2.14kg) was remarkablebetter than hybrid doe (83.54±1.97 kg),Gansu stags (81.44±2.16kg) and Gansu doe(78.63±1.98kg) (p＜0.01 ) in 1 years old. Absolute increment and relative incrementof body weight, body height and body length in F1 crossed Tian×Gan were greater thanGansu wapiti, body weight,body height and body length of two-year-old hybrid stagsrespectively were 118.6±2.01 kg,117.6±2.11 cm and 13.3±1.86cm,which accounted for61.75%,92.58% and 87.19% of adult stags respectively, increased by 3.09%,5.33% and3.84% in compare to Gansu stags. Body weight,body height and body length oftwo-year-old hybrid doe respectively were 111.5±2.11kg, 112.4±2.35cm,109.4±2.13cm,they are 70.56%,98.62%,93.53% of adult doe, compared with Gansudoe,increased by 2.43%,6.28%,3.58%.(2) First antler weight (0.42±0.12kg) and two branched velvet antler (1.52±0.65kg)of F1 stags crossed Tian and Gan were remarkable better than Gansu wapiti and weremore 0.16kg and 0.59kg than Gansu wapiti respectively, increased by 61.54% and63.44%.(3) Carcass weight of 3～4 years old stags was 60.63kg, dressing percentage was47.65%,which accounted for 60.87% and 87.95% respectively. Carcass weight of 3～4years old does was 40.69kg, dressing percentage was 40.18%,which accounted for61.89% and 81.02% respectively. Carcass weight and dressing percentage of 7～10 yearsold stags have increased to 99.6kg and 54.18% respectively, increased by 64.28% and13.70%. Carcass weight and dressing percentage of does have increased to 65.75kg and47.26% respectively, increased by 61.59% and 17.62%.The weight of net of 3～4 years old stags and does respectively were 48.33kg and 31.22kg,they were 58.54% and 60.95%of adult wapiti. The weight of net of 7～10 years old stags and does respectively were82.56kg and 51.22kg,increased by 70.83% and64.06%.Meat percentage of 3～4 years oldstags and does respectively were 37.99% and 31.37%,accounted for 84.59% and 85.22%of adult wapiti, meat percentage of 7～10 years old stags and does respectively was44.91% and 36.81%,increased by 18.22% and 17.34%.Meat percentage of carcass of 34 years old stags and does respectively were 79.71% and 76.72%,accounted for 96.16%and 98.42% of adult wapiti, Meat percentage of carcass of 7～10 years old stags and doesrespectively were 82.89% and 77.95%,increased by 18.22% and 17.34%.(4) Meat color and marbling of Gansu wapiti were all in normal range, meat colorwas slightly deepening with age, marbling was increasing with age, the content of fattyAcids in Intramuscular in 3～4 years old Gansu wapiti was less. Cooking loss wasincreasing, but water loss ratio and meat tenderness were in inverse proportion to age.(5) Moisture, crude protein and crude fat content of Gansu wapiti flesh meatrespectively were 76.31%, 21.92% and 1.47%,the content of dry matter was less thanbeef, pork, chicken and rabbit meat, but it was similar to mutton, camel meat and horsemeat. It's content of crude protein was higher than pork and mutton, but less than rabbitmeat. It's content of crude fat was less than animal and poultry meat, such as pork,mutton, beef and chicken. Threonine, valine, isoleucine, tyrosine and arginine in drymatter of Gansu wapiti were higher than sika deer meat and rabbit meat.(6) The weight ofcariac, lung and length of large instestine of Gansu adult wapitiwere 1.12kg, 2.14kg and 10.49cm and they were all higher than sika, but weight of liver(1.68kg) was remarkable less than sika. The weight of spleen, kidney, stomach and lengthof small intestine, intestinum caecum were 0.38kg, 0.29kg, 3.94kg, 14.47m and 0.80mand they were similar to sika.
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