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20115
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Subject: Animal Nutrition × End date: 2011 × Start date: 2011 × Type: Thesis ×
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    ThesisItemOpen Access
    EFFECT OF ZINC SUPPLEMENTATION ON THE LACTATIONAL PERFORMANCE OF DAIRY COWS
    (Karnataka Veterinary Animal And Fisheries Sciences University, Bidar, 2011) SWAMI VIJAY CHANDRASHEKHAR
    India is the highest milk producing country in the world (91.94 million MT of milk per annum) with a share of 14 per cent of world milk production
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    ThesisItemOpen Access
    EFFECT OF SUPPLEMENTATION OF SURFACTANT AND CELLULOLYTIC ENZYMES ON THE PERFORMANCE OF GROWING LAMBS FED UREA TREATED RHODES (Chloris gayana)
    (Karnataka Veterinary Animal And Fisheries Sciences University, Bidar, 2011) RAMU K.C
    In a developing country like India where around 18 per cent of the gross domestic product (GDP) is obtained from agriculture, the livestock sector plays an important role in the national economy
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    ThesisItemOpen Access
    Nutritional Evaluation of Corn (zea mays) Germ Meal Based Diets in Broiler Rabbits
    (Karnataka Veterinary, Animal and Fisheries Sciences University, Bidar, 2011-06-25) Nagpure Prasad Subhash; Prabhu, T.M.; Gideon Gloridoss, R.; Chandrapal Singh, K.; Rajeshwari, Y.B.
    A feeding trial experiment was conducted with an objective to assess the nutritive value of corn germ meal (CGM) based diets in growing broiler rabbits. Twenty- four weaned rabbits (4-5week old) were randomly allotted to three groups, comprising of eight animals in each treatment group based on body weight. The experimental rabbits of group 1 (T1) were fed composite diet containing groundnut cake (GNC) as major protein supplement, while the two experimental groups T2 and T3 received composite diets comprising of CGM at 10 and 20 % (w/w) to substitute 25 % and 50 % of GNC protein, respectively. The experimental period lasted for eight weeks. The DM intake (g/h/d) (82.13- T1, 80.48- T2 and 76.54- T3) did not differ significantly among rabbits on different dietary regimen. The average daily gain (ADG) (g/h/d) was significantly (P ≤ 0.05) higher for T2 group receiving 10 % CGM based diet (18.20) as compared to the groups receiving GNC (T1- 12.08) or 20 % CGM (T3- 11.10) based diets. However, the difference in ADG between T1 and T3 was non significant. The efficiency of feed utilization for weight gain (g DM intake / g gain) (7.02 – T1, 4.8 - T2 and 6.94- T3) had significant difference (P ≤ 0.05) for group T2 when compared with groups T1 and T3. No significant difference was observed for the digestibility of the DM, OM, CP and EE. However, significant difference (P ≤ 0.05) was observed between T1 and T3 for nitrogen free extract (NFE) digestibility. Similarly, the percentage digestibility of the CF, ADF and cellulose was comparable among different treatments. There was significantly (P ≤ 0.05) higher NDF digestibility in T3 group receiving 20 % CGM based diet. Significant difference (P ≤ 0.05) was also noticed for hemicellulose digestibility among T1 (67.06), T2 (81.94) and T3 (83.86) groups. Thus, corn germ meal was found to be satisfactory protein substitute for GNC to spare scarce and costly oil seed cakes for economical rabbit production.
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    ThesisItemOpen Access
    Effect of Zinc Supplementation on the Lactational Performance of Dairy Cows
    (Karnataka Veterinary, Animal and Fisheries Sciences University, Bidar, 2011-01-15) Swami Vijay Chandrashekhar; Chandrapal Singh, K.; Gideon Gloridoss, R.; Krishnamuoorthy, U.; Prabhu, T.M.
    Eight crossbred cows (Holstein Friesian × Sahiwal) in midlactation were used in Youden latin square design (3 x 3) to determine the effect of Zn supplementation (as ZnSO4) on the lactational performance of dairy cows. Lactation trial comprised of three groups of cows fed three treatment diets viz. T1, T2 and T3, receiving three levels of Zn supplementation viz. 50, 250 and 500 ppm. Diets contained corn silage, ragi straw and a compounded feed mixture. Animals were fed daily with fixed quantities of corn silage (20 kg) and ragi straw (1 kg). The allowance of CFM for individual cows varied to supply the required treatment ME. Dry matter intake (12.13, 12.57 and 12.47 kg/day for T1, T2 and T3 treatments, respectively) was not significantly different between treatment groups. The total and FCM yield was similar among the treatment groups. The composition of fat (5.04, 4.98 and 5.05 for T1, T2 and T3, respectively), SNF (9.76, 9.93 and 10.14 per cent for T1, T2 and T3, respectively), protein (3.65, 3.65 and 3.73 per cent for T1, T2 and T3, respectively) and lactose (5.42, 5.59 and 5.63 per cent for T1, T2 and T3, res.pectively) in the milk of cows were not significantly different between the treatment groups. No significant difference was noticed in body weight gain of animals. The Zn content of the milk for 50, 250 and 500 ppm Zn diets were 8.86, 10.70 and 12.40 (mg per kg milk) respectively. The increase in the Zn content was consistent and linear with the level of Zn in the diet (P<0.05). It was concluded from the study that the Zn supplementation increased the nutritional value of milk in terms of increased Zn content of the milk.
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    ThesisItemOpen Access
    Effect of Supplementation of Surfactant and Cellulolytic Enzymes on the Performance of Growing Lambs Fed Urea Treated Rhodes (Chloris Gayana) Hay
    (Karnataka Veterinary, Animal and Fisheries Sciences University, Bidar, 2011-02-15) Ramu, K.C.; Gideon Glori Doss, R.; Chandrapal Singh, K.; Reddy, B.S.V.; Prabhu, T.M.; Narasimha Murathy, H.N.
    The objective of this study was to improve the nutrient digestibility of two per cent urea treated Rhodes hay and growth performance of lambs by supplementation of surfactant and cellulolytic enzymes. In the growth trial, sixteen growing lambs were distributed into four groups of four each in a completely randomized design. The trial consisted of twelve weeks duration. The experimented groups were fed diet as T-1: Free choice feeding of 2% urea treated Rhodes hay, T-2: Free choice feeding of 2% urea and 0.1% Tween-80 Rhodes hay, T-3: Free choice feeding of 2% urea, cellulolytic enzymes ( 80 IU/g DM) treated Rhodes hay and T-4: Free choice feeding of 2% urea, 0.1% Tween-80 and cellulolytic enzymes ( 80 IU/g DM) treated Rhodes hay. The concentrate mixture containing 97 % Maize was uniformly offered to all animals at 1.5% of body weight. The average daily gain as g/day (ADG) was significantly different (P<0.05) between different dietary treatment groups viz., T -1 and T-2 (69.94 and 73.30 g/h/d), T-2 and T-3 (73.30 and 70.12 g/h/d), T-1 and T-4 (69.94 and 74.08 g/h/d), T-3 and T-4 (70.12 and 74.08 g/h/d). Even though there was no significant difference obtained pertaining to nutrient digestibility among all the four dietary treatment groups, numerically higher mean per cent digestibilities of CP and DM were observed in T-2 and T-4 treatment groups when compared to T-1 and T-3 treatment groups [CPD: T-1(72.24), T-2(73.94), T-3(70.43), and T-4(73.89), DMD: T-1(65.91), T-2(70.40), T-3(68.73), and T-4(69.74)]. This might be the reason for getting higher ADG in the treatment groups T-2 and T-4. So it is concluded that the two percent urea along with 0.1 per cent Tween 80 treated Rhodes hay and 2 per cent urea along with 0.1 per cent T-80 and cellulase enzyme (80 IU per gram of DM ) treated Rhodes hay are beneficial in obtaining better ADG of growing lambs.