Graduate Thesis Or Dissertation
 

Utilization of high roughage diets by rabbits

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  • A series of experiments were conducted to determine the utilization of fibrous feeds by the rabbit. A review of literature was performed to ascertain the results of similar studies. The first two experiments involved various levels of alfalfa substituted for corn or barley. Results indicated that a 50 percent alfalfa diet with an acid detergent fiber (ADF) level of 19 percent could be fed without adversely affecting growth rate or dressing percentages. The group fed a 74 percent alfalfa diet, where alfalfa completely replaced corn, had lower growth rates but was the only group with no mortality. Experiment 3 was performed to determine the effects of fresh greens supplementation on pellet consumption. Pellet intake was significantly less in the group given free choice of greens versus those fed pellets only. Average daily gains were the same in both groups. Even when pellet consumption was limited, weight gains were not adversely affected until less than 50 grams (g) of pellets were allotted. The lowest weight gains were in the group fed greens and no pellets. Dressing percentages were calculated in the ad libitum greens, the 75 g pellets and ad libitum greens and the pellets only groups. There were no significant differences among the three groups. Lastly an attempt was made to improve the fiber digestibility in alfalfa, millrun and corn cobs with sodium hydroxide treatment. The only apparent increase in fiber digestibility occurred in the millrun group. The energy digestibility did not increase in the treated millrun group, indicating another factor may have been involved in the elevated fiber digestibility in this group.
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  • File scanned at 300 ppi (Monochrome) using Capture Perfect 3.0.82 on a Canon DR-9080C in PDF format. CVista PdfCompressor 4.0 was used for pdf compression and textual OCR.
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