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Subject: Animal Nutrition × End date: 2002 × Start date: 2002 × Type: Thesis ×
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    ThesisItemOpen Access
    Effect of supplementation of dried yeast (Nutramix - Mdy) on growth performance of pre- ruminant calves
    (Department of Animal Nutrition, College of Veterinary and Animal Sciences, Mannuthy, 2002) Asitha, T V; KAU; Mercy, A D
    An experiment was conducted to study the effect of dietary supplementation of dried yeast (''Neutramix-MDY'') on growth performance of pre-ruminant calves. Twelve calves of one week to one month of age were distributed into two groups of six calves each, as uniformly as possible with regard to age, sex and body weight, with one group receiving the control diet (calf starter, grass and milk) and the other group receiving dried yeast ("Neutramix-MDY") @ 20g/day along with the control diet. The final body weight (kg) and average daily gain (g/day) were 72.5 and 247 for control group and 76.2 and 284 for treatment group during the trial period. Though there was no statistically significant difference between the control and the treatment group, there was a numerical increase in both the parameters in treatment animals. The average feed to gain ratio was 4.94 and 4.60 for the control and treatment group respectively. There was no improvement in dry matter, crude protein, acid detergent fibre and neutral detergent fibre digestibilities in yeast fed group over the control. Haematological parameters such as blood glucose, plasma protein, calcium and phosphorus were unaffected by the dietary treatment. The above results indicate that supplementation of yeast culture to the diets of pre- ruminant calves had no statistically significant effect on animal performance.
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    ThesisItemOpen Access
    Nutritive evaluation of prawn waste for growth in large white yorkshire pigs
    (Department of Animal Nutrition, College of Veterinary and Animal Sciences, Mannuthy, 2002) Madhukumar, U; KAU; Viswanathan, T V
    An experiment was conducted to assess the nutritive value of prawn waste for growth in Large White Yorkshire pigs. Thirty female pigs with an average body weight of 31.4 kg were divided into three equal groups as uniformly as possible with regard to age and body weight. The three groups of pigs were maintained on three different experimental diets viz., Tl control standard grower (16 per cent CP) and finisher ration (14 per cent CP), T2 - 25 per cent of total protein in Tl replaced by protein from prawn waste and T 3 - 50 per cent of total protein in T 1 replaced by protein from prawn waste. The average daily gain recorded for the three groups T1, T2 and T3 were 385.5, 393.3 and 381.1 g respectively. The cumulative feed conversion efficiencies were 4.87, 4.73 and 4.89 for the groups T1, T2 and T3 respectively. The digestibility coefficients of nutrients were significantly higher in T2 for dry matter (p<0.05) and crude protein (pwas found significantly higher (p and T2. The digestibility coefficients of crude fibre and ether extract were almost similar for all the three groups. Study of the carcass characteristics revealed that dressing percentage, carcass length, back fat thickness, loin eye area and ham weight were not significantly influenced by the inclusion of prawn waste at different levels. The cost of feed per kg weight gain of animals in different treatments Tl and T2 and T3 were Rs. 29.95, 23.84 and 21.18 respectively. The above results indicate that, prawn waste can be used economically to replace the protein of the grower and finisher rations for pigs up to 50 per cent level.
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    ThesisItemOpen Access
    Evaluation of complete feed for meat production in calves
    (Department of Animal Nutrition, College of Veterinary and Animal Sciences, Mannuthy, 2002) Ajith, K S; KAU; George Mathen
    An experiment was carried out in three months old crossbred calves with an aim to utilize male and surplus female calves for meat production. Eighteen crossbred calves were grouped into three, considering body weight, breed, sex and age. Animals of group A and B received complete feed consisting of a concentrate mixture and grass hay, with eight (Ration A) and twelve per cent crude fibre (Ration B) respectively, while the animals of group C received the conventional control ration consisting concentrate and green grass (Ration C). During the experimental period of five months fortnightly body weights and body measurements were recorded. The body weights and body measurements except chest girth showed significant increase (Pcomplete rations. The average daily body weight gain (AOG) showed significant increase (Pthose fed control ration while the cumulative feed conversion efficiency was significantly higher for group A (Pgroup C. The average daily body weight gain obtained in the experiment were 668.83 ± 22.37, 658.55 ± 35.41 and 497.83 ± 33.35 g/day and the cumulative feed conversion efficiency were 4.71 ± 0.15,5.57 ± 0.37 and 6.99 ± 0.42 for A, B and C groups respectively. The digestibility coefficients for dry matter and crude fibre were significantly higher (Pthose fed complete rations, while crude protein digestibility was lower for ration A (P<0.05) and ration B (P obtained were 50.80 ± 0.70, 51.30 ± 1.43 and 45.17 ± 1.25 with a meat yield of 34.60 ± 0.15, 35.30 ± 1.12 and 30.73 ± 1.24 for A, B and C groups respectively. The gross profit per animals for five months was calculated as Rs.1399.00, Rs.l550.00 and Rs.632.25 for A, Band C groups respectively.