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Author: ABINAYA P × End date: 2019 × Start date: 2019 ×
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    ThesisItemOpen Access
    ASSESSMENT OF MAINTENANCE ENERGY REQUIREMENT OF MEDIUM SIZED NONDESCRIPT DOGS
    (College of Veterinary and animal Science,Mannuthy, 2019) ABINAYA P; Ally K.
    An experiment was conducted in medium sized adult nondescript dogs kept restrained for a period of four months to assess the maintenance energy requirement. Fifteen medium sized healthy adult nondescript dogs of about one to four years of age and around 12 to 18 kg body weight were selected and randomly allotted into three treatments, so as to have five replicates per treatment. The dietary treatments are T1 (Control ration 18% CP and 3000 kcal ME/kg), T2 (Feed with 18% CP and 2700 kcal ME/kg) and T3 (Feed with 18% CP and 2400 kcal ME/kg). Data on daily dry matter (DM) intake, weekly body weight, weekly body condition score, haemato-biochemical parameters like haemoglobin, packed cell volume, serum albumin and serum alkaline phosphatase and digestibility coefficient of nutrients were used to evaluate the dietary treatments. The average initial and final body weight of dogs of T1, T2 and T3 were 15.42 and 15.80, 15.43 and 15.43 and 14.12 and 13.68 kg, respectively. The average initial and final body score of dogs of T1, T2 and T3 were 4.20 and 4.40, 4.20 and 4.40 and 3.80 and 3.80, respectively. The average body weight and body condition score of dogs in all the three dietary groups were maintained throughout the experimental period. Mean of weekly DM intake per kg body weight was 14.44, 15.22 and 16.91g for animals in T1, T2 and T3 groups, respectively. The mean of CP intake per kg body weight was 2.65, 2.77 and 3.07g for animals in three experimental groups, respectively. The T3 group was having higher and significantly different (P>0.01) DM and CP intke than T1 and T2 groups. T1 was having higher and significantly different (P<0.05) apparent digestibility of dry matter and crude protein than T2 and T3. There was no significant difference among three dietary treatment groups in the digestibility coefficient of crude fibre and nitrogen free extract (P>0.05). Both T1 and T2 had higher and significantly different (P<0.01) apparent digestibility of ether extract than T3. The haematological and serum biochemical parameters such as haemoglobin, packed cell volume, serum albumin and serum alkaline phosphatase did not show any significant difference among the treatments and the values were within the normal range reported for the species. Animals in T3 were having higher and signifigantly different (P<0.05) faecal volume. Statistically there was no significant difference (P>0.05) in faecal score of three groups. Cost of feed per kg was Rs. 215.80, Rs. 161.72 and Rs. 130.15, respectively for T1, T2 and T3 feeds. Based on the results obtained in the present study, the average ME intake per kg metabolic body weight of dogs maintained in T1 (18% CP and 3000 kcal ME/kg) was 86.54 kcal, T2 (18% CP and 2700 kcal ME /kg) group was 81.07 and T3 (18% CP and 2400 kcal ME /kg) group was 76.68 kcal. Even though the ME intake of dogs maintained in T3 group was 19 per cent lower than NRC (95 kcal/kg0.75), it was found to be sufficient to maintain the body weight of medium sized nondescript dogs. Therefore, a diet can be formulated with 18 per cent CP and 2400 kcal ME /kg feed as a maintenance diet for medium sized dogs kept restrained. It can also be concluded from the results that for dogs fed with a diet with 18 per cent CP, a daily DM allowance of 16 -18g (2400 kcal of ME/kg diet), 14-15g (2700 kcal of ME/kg diet) and 13-14g (3000 kcal of ME/kg diet) per kg body weight can be recommended.