Experiment with young female Hungarian Giant rabbits was carried out to establish the live body measurements and total body composition in function of feeding intensity. The trial lasted between the age of week 7 and 24 of animals. The animals of the control group (n=11) were fed ad libitum (Group 1: "AL"), while their sisters' feeding was restricted (n=11) properly 70% ad libitum of the intake (Group 2: "RS"). To establish the basic situation, another analogue 7 rabbits were analyzed for major chemical components at the age of 7 weeks. At the end of the week 24, after euthanasia, the total body's major chemical composition was measured. The starting live weights practically were the same: 1,.72+0,34 vs 1,.75+0,35 kg, Group AL and RS, respectively. The average body weight at 24 weeks of age was higher in AL-Group (5,42±0,69 kg vs 4,86±0,32 kg). (Figure 1). Data of average body weight show that the 19 week-old restricted females were similar to the 16 week-old ad libitum and 21 week-old restricted ones resembled to the 17 week-old ad libitum. Significant differences (P<0,05) were found between the two groups of animals with the same body weight at the trunk length, the head height and the fore cannon length. (Table 2 and 3.) Restricted feeding decreased the sexual maturity, i.e. the ovarian activity and responsiveness developed later; ovary contained less tercier follicles. The effect of feed restriction reflected in lower fat, as well as a higher ash and protein content, both in original whole body and in its dry matter. As a consequence, the development of does, fed restricted is tended to be unequal (allometric growth).
|Number of pages||6|
|Journal||Magyar Allatorvosok Lapja|
|Publication status||Published - Jan 1 2002|
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