| In order to evaluate the feeding effect of ([(Pennisetum purpureum.cvMott)×(P.americanum×P.purureum)]cv.GuimuNo.1 (P.G) on meat rabbit, the nutrient components determination test,14 day’s apparent digestibility test and 90day’s feeding experiment were carried out. The nutrient components, digestibility and effect on the growing performance of rabbits of P.G were determined. The study could provide reference basis and technical data for developing rabbitry using P.G in production, which was the first time in China. The conclusions were drawn as follows:Testl:Analysis of nutrient components of P.G and determination of its digestibility to rabbitsTwelve rabbits were selected to carry on the digestibility test, and the results showed that the P.G were rich in nutrient components, the crude protein(CP), crude fiber(CF), crude fat(CF), Nitrogen Free Extract(NFE), crude ash(CA), calcium(Ca) and phosphorus(P) were 13.95%,30.63%,2.72%, 41.99%,10.72%,0.61% and 0.42% separately; rabbits could utilize P.G very well, and the digestibility of CP, CF, EE, NFE, ASH, Ca and P of P.G were 76.79%,42.26%,80.23%,58.42%,43.17%,45.52% and 22.30%.Test 2:The feeding value of P.G on rabbitsFifty rabbits with the similar age and weight were chosed and devided into 5 groups fed with different diets, which were made by adding 0%、10%、20%、 30%、40% of PG powder to replace the concentrated feed of rabbits.Then the feed intake, daily weight gain, slaughter performance, visceral organs and economic benifits were determinted, so that the substituting effect of different ratios of P.G powder on rabbits was studied. The results showed that: the total weight gain of rabbit of the control group was the highest, and the average daily gain was 20.31g; when adding 10% of P.G powder, the average daily gain was 19.56g (P>0.05) which had no significant difference with the control group, the feed/gain ratio was the lowest, the average daily feed intake was also the lowest,70.62g/per rabbit, and the benifits was the best, which could obtain 1.1 Yuan RMB/per rabbit than that of the control group; the carcass indexes containing slaughter percentage, meat weight and meat/bone ratio, visceral organs concluding heart, lung and spleen, and the shape and appearence such as lenghth, width of chest and so on were no siginificant with that of the control group, which showed that adding PG had no harmful effect on the carcass weight and visceral organs. In addition, the quality of rabbit was good, and the protein, fat, cholesterol and amino acid percentage of which were 20.6%,3.5%,61.5mg/100g and 17.88%.In conclusion, the nutrient component was abundent, the adaptability was good, and the rabbits could digest and absorb P.G very well. Adding 10% of P.G powder could replace concentrated feed to promote the growth of rabbits, and decrease the cost so as to increase the profit of raising rabbits. Therefore, P.G was a good kind of forage which was suitable to be used in the diet of rabbit, and also worthy of further extending and applied in rabbits diet and production. |
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