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The Effects Of Different Feed Flavor On The Hay Intake Of Ruminant

Posted on:2008-01-21Degree:MasterType:Thesis
Country:ChinaCandidate:D YuanFull Text:PDF
GTID:2143360215468331Subject:Animal Nutrition and Feed Science
Abstract/Summary:PDF Full Text Request
The article were studied the effects of the different feed flavors on the hay dynamic intake, milk yield and quality of milk in the first experiment.The effects of different feed flavors on hay intake about Alertai sheep were studied in the second experiment and the Orixin were studied about productivity effects of crossbreed meat sheep in the third experiment.In the first experiment, fifty healthy Holstein cows in back lactation were selected and divided into five groups randomly, there was no difference in group weigh,milk yield, body-grade, ages and days in milk (p>0.05). The apple flavor, green flavor, grass flavor, sweet flavor and fruit flavor were chosen as trial flavor. According to the weight proportion of the flavor liquid with hay was 1:1, the green flavor, grass flavor, sweet flavor and fruit flavor were confected into flavor liquid as 1.5‰,1.5‰,2.5‰,1.5‰.In the second experiment, According to the similar weight and hay intake,ten six-mouth old sheep were chosen and devided into two groups ramdomly (n=5). In the third experiment, according to the dosage of Orixin, every corssbreed sheep 8㎎/d , 10㎎/d , 12㎎/d respectively were added in every group. The results showed that the hay intake of Holstein cows accession of sweet flavor group and grass flavor group were heightened 11.38%,7.08% respectively contrast with control group and it was significant difference (p>0.05). there were definite amortizing effect added to sweet flavor, grass flavor, green flavor during back lactation on the falling of milk yield, but it was not significant difference (p>0.05). The milk fat percentage was not significant difference in the milk sample colleted from 1st, 15th, 30th (p>0.05). the milk protein percentage was not significant difference (p>0.05) among every groups. The sweet flavor and green flavor had good effect on dairy cow weight and body condition, but the weight and body condition scoring of each group was not significant difference (p>0.05). The second experiment result indicated that in the first period time, the hay intake of sweet group was higher 66.75g and 53.96g than green group and control group and the difference was significant difference (P<0.05). In the second period time, the difference which were the hay intake of grass flavor, fruit flavor and control group was not significant difference (P>0.05). In the third period , the hay intake of combination was higher 33.32g/d than control group and the difference was significant difference (P<0.05). The effects of Orixin on the F2T×X crossbreed lambs productivity indicated: there are no significant difference of average adding weight (P>0.05).The result of experiment showed that the crossbreed lamb's productivity can not be inflenced by the dosage of Orenxin during in these experiments.
Keywords/Search Tags:ruminant, feed flavor, hay, DIM., milk yield
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