Browsing by Author "SIVAKUMAR, K."
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ThesisItem Restricted ASSESSMENT OF PRACTICAL STORAGE LIFE OF FROZEN BROILER CHICKEN UNDER DIFFERENT PACKAGING METHODS AND COMMERCIAL STORAGE CONDITIONS(TANUVAS, CHENNAI, 2021) SIVAKUMAR, P.; TANUVAS; SURESHKUMAR, S.; CHANDIRASEKARAN, V.; SIVAKUMAR, K.; MURALI, N.A study on the assessment of practical storage life of frozen broiler chicken under different packaging methods (aerobic and vacuum) and commercial storage conditions (-12ºC, -18ºC and -24ºC) for 12 months was conducted at the Department of Livestock Products Technology (Meat Science), Veterinary College and Research Institute, Namakkal - 637002. A total of 270 blast frozen whole broiler meat, divided into three groups (45 each for aerobic and vacuum packaging) were purchased from the commercial processing plant, Udumalipet, Tirupur, Tamil Nadu with ten days interval for each group and six numbers of freshly slaughtered broiler breast meat were also procured from the same unit and kept as control. The purchased broiler meat (3 groups each 90 samples) were transported to the Department of Livestock Products Technology (Meat Science) and kept in the dedicated deep freezer at -12ºC, -18ºC and -24ºC temperature for 12 months. The breast meat was used for the evaluation of the various parameters in this study.ThesisItem Restricted DIETARY SUPPLEMENTATION OF PANCHAGAVYA AND PHYTOGENIC FEED ADDITIVES ON THE PERFORMANCE OF COMMERCIAL BROILER AND LAYER CHICKEN(TANUVAS, CHENNAI, 2021) MEHALA C.; TANUVAS; KANNAN D.; MOORTHY, M.; NATARAJAN, A.; SIVAKUMAR, K.; RAMACHANDRAN, M.Biological trials were conducted in commercial broiler chicken and layer chicken from day old to five weeks of age and day old to 30 weeks of age respectively to evaluate the production performance of broilers and layers by dietary supplementation of panchagavya and phytogenic feed additives. In the first biological trial, two-hundred and forty day old broiler chicks were randomly allotted into six treatment groups with five replicates of eight chicks each and consisted of control-basal diet (T1) and other treatment groups consisted of basal diet with oxytetracycline- 50 ppm (T2), panchagavya -7.5 g/kg (T3), panchagavya - 7.5 g/kg and Andrographis paniculata – 2 g/kg (T4), panchagavya -7.5 g/kg and garlic -1 g/kg (T5) and panchagavya -7.5 g/kg and turmeric-1 g/kg (T6). All the birds were reared in deep litter under standard management practices throughout the study period. The results on supplementation of panchagavya and phytogenic feed additives in commercial broiler chicken at 5 weeks of age revealed significant (P<0.01) difference in mean body weight (g) and body weight gain (g). The body weight (1797, 1728.40 and 1719.35 g) and body weight gain (1748.95, 1681.61 and 1671.98 g) were significantly (P<0.01) higher in T2 (antibiotic fed group) followed by T6 (PG and turmeric fed group) and T3 (PG fed group) than all other groups. The data on cumulative feed consumption (g) revealed a highly significant (P<0.01) difference between the treatment groups from 1 to 4 weeks of age, but had no significant difference in feed consumption at 5th week of age and observed that T6 (PG and turmeric) group recorded higher feed consumption (2513.27 g) whereas lower feed consumption (2390.39 g) was noticed in T1 group (basal diet).ThesisItem Restricted DIFFERENT MATING RATIO AND EGG STORAGE ON FERTILITY AND HATCHABILITY OF “TANUVAS NAMAKKAL QUAIL-1” BREEDERS(TANUVAS, CHENNAI, 2022) KHANDARE TEJASHWINI BHARAT; TANUVAS; MOORTHY M.; RAJENDRAN K.; SIVAKUMAR, K.A biological experiment was conducted to study the effect of different mating ratio and egg storage period on fertility and hatchability of TANUVAS Namakkal quail-1 breeders in caged housing system. The experiment was conducted by using two hundred and fifty adult birds of the age 15-25 weeks (males:25 and females:125) and 35-45 weeks (males:25 and females:125) TANUVAS Namakkal quail-1 breeders. The different male: female ratios viz. T1 (1:2), T2 (1:3), T3 (1:4), T4 (1:5) and T5 (1:6) were maintained in cages separately. All the birds were reared as per the standard managemental procedure and fed with Japanese quail breeder diet. The fertile eggs were collected from each male: female ratio separately for 28 days period. Eggs set in the incubator and per cent hatchability, infertile, embryonic mortality and dead-in-shell were studied. The results of the experiment revealed that the hatchability was highly significant (P<0.01) in T3 group (77.62%) with a mating ratio of 1:4 in 15 to 25 weeks age group and in T2 group (72.83%) with a mating ratio of 1:3 in 35 to 45 weeks age group and these two treatments were selected for the second experiment for the collection of eggs for pre-incubation storage study. The per cent infertile, embryonic mortality and dead-in shell did not differ significantly in 15 to 25 weeks and 35-45 weeks age group.ThesisItem Restricted PERFORMANCE OF SALEM BLACK GOATS SUPPLEMENTED WITH CONCENTRATE FEED DURING DIFFERENT PHYSIOLOGICAL STATES(TANUVAS, CHENNAI, 2021) BHARATHY, N.; TANUVAS; ANANDHA PRAKASH SINGH, D.; SIVAKUMAR, K.; NATARAJAN, A.; MURALI, N.; VASANTHAKUMAR, P.A study was carried out at Livestock Farm Complex, Veterinary College and Research Institute, Namakkal, Tamil Nadu from February 2019 to February 2020 to find out the performance of Salem Black goats supplemented with concentrate feed at graded levels during different physiological states. Two biological trials were conducted to assess the reproductive, growth performance and cost effectiveness of Salem Black goats reared under semi-intensive system of rearing. The first trial was conducted to study the reproductive performance of Salem Black goats using 32 adult female animals (2 to 5 years of age). The experimental groups included control (T1) group allowed for grazing alone, whereas those goats reared under T2 T3 and T4 groups were offered concentrate feed at graded levels viz. 100 g, 200 g and 300 g, respectively during crucial stages of reproduction such as flushing period (3 weeks before and 3 weeks after mating) as well as steaming-up period (4 weeks before and 4 weeks after kidding).ThesisItem Restricted PHYSIOLOGICAL STUDY ON PRODUCTIVE AND REPRODUCTIVE PERFORMANCE IN KANGAYAM CATTLE(TANUVAS, CHENNAI, 2021) DEVIPRIYA K.; TANUVAS; SELVARAJ P.; JAYACHANDRAN, S.; BALASUNDARAM, K.; SIVAKUMAR, K.; MANOKARAN, S.The present study was conducted in Kangayam breed of cattle at different age group to assess growth rate, physiological and haematobiochemical parameters, reproductive hormones concentration, milk composition and thermotolerance ability. 66 animals of different age were selected and divided into 6 groups of 10 animals each. Growth rate of calves from 1 to 12 months of age was estimated using Schaeffer’s formula and compared with actual weight. There was about 2-4% less body weight obtained when formula was used. Among physiological parameters, respiratory rate in early months was significantly higher (P<0.05) in both males and females and later it was reduced as the age increased. However no changes were observed in pulse rate, rectal temperature and skin temperature between different age groups.