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ThesisItem Restricted GENETIC STUDY ON PERFORMANCE TRAITS OF MADRAS RED SHEEP UNDER FARM CONDITIONS(2017) KAVIRAJAN S; TANUVAS; Devandran P; Sivaselvam SN; Suresh Kumar KData (n=323l) on production and functional traits of Madras Red sheep available from 1991 to 2017 (26 years) at the Sheep and Goat Breeding Unit, Post-Graduate Research Institute in Animal Sciences, Kattupakkam, Kancheepuram District, Tamil Nadu were utilized for the study. The pedigree information was collected from the records maintained in the Institute. The production traits such as birth weight, body weight at weaning (3-month), 6-month, 9-month and 12-month and pre-weaning (birth to 3-month) and post- weaning (3- 6, 6-9, 9-12 and 3-12 month) average daily weight gains were studied.ThesisItem Restricted PERFORMANCE ANALYSIS OF LARGE WHITE YORKSHIRE x DESI CROSSBRED PIGS REARED UNDER FARM CONDITIONS(2017) JAYASREE P; TANUVAS; Sivaselvam SN; Venkataraman R; Meenakashisundaram SA study was conducted to evaluate the individual and sow performance traits of Large White Yorkshire (LWY) X Desi crossbred pigs at Post-Graduate Research Institute in Animal Sciences, Kattupakkam, Tamil Nadu. Data available on pedigree (from 1989 to 2016), sex, production, reproduction and disposal (from 2001 to 2016) at the All India Co-ordinated Research Project on Pigs (AICRP) were used for the study.ThesisItem Restricted GENETIC EVALUATION OF GROWTH IN FIELD FLOCKS OF MADRAS RED SHEEP USING RANDOM REGRESSION MODELS(2017) ARTHY V; TANUVAS; VENKATARAMANAN R; SIVASELVAM SN; SREEKUMAR CGrowth performance of Madras Red sheep in farmers‘ flocks was evaluated using random regression models (RRM). Data accrued over 25 years at the Network Project on Sheep Improvement - Madras Red field unit (NWPSI), jointly funded by Indian Council of Agricultural Research, New Delhi and Tamil Nadu Veterinary and Animal Sciences University (TANUVAS), Chennai has been utilised for this study. Evaluation of growth was done through univa.riate analyses, multivariate analyses and RRM and the results were compared. Univariate analyses was done for body weight at birth (BW), weaning weight (WW), 6- month weight (6W), 9-month weight (9W), 12-month weight (YW), pre-weaning (ADG1, birth to 3-months) and post-weaning average daily gains (ADG2, 3- 6 months; ADG3, 6-9 months; ADG4, 9-12 months and ADG5, 3-12 months).ThesisItem Restricted CHEMOPREVENTIVE STUDIES OF ANDROGRAPHIS PANICULATA ON EXPERIMENTAL ORAL CARCINOGENESIS IN RATS(2016) SATHI KB; TANUVAS; Hemalatha S; Sridhar R; Mangalagowri AThe present work was programmed to study the experimental induction of oral carcinogenesis in rats using 4- Nitroquinoline-l-oxide (4NQO) and the antineoplastic potential of A/zdrographis paniculara. Eighty eight male Wistar rats of 6-8 weeks old were randomly allotted to four groups with 16 rats in control group and 24 rats in other three groups. 4NQO (20ppm) was given in drinking water ad libitum and A. paniculata ( 5mg/kg bw) per os either alone or in combination for 105 days. Administration of 4NQO and A. paniculata resulted in reduction of body weight towards the end of trial in respective groups. A significant (P<0.05) difference in serum total protein, albumin and glucose were observed in 4NQO and 4NQO + A. paniculata groups from that of untreated control. Lipid peroxidation values showed a highly significant (P<0.01) increase in 4NQO and 4NQO + A. paniculata treated groups throughout the course of trial but the values showed a slight reduction in 4NQO + A. paniculata group as compared to 4NQO group. A highly significant (P<0.01) increase in glutathione peroxidase activity and a significant (P<0.05) decrease in superoxidase dismutase values were observed in 4NQO treated rats.ThesisItem Restricted GENETIC STUDIES ON SEM EN PRODUCTION IN MURRAH BUFFALO BULLSREARED IN TAMIL NADU(2016) RAMAJAYAN P; TANUVAS; Sivaselvam SN; Karthickeyan SMK; Kulasekar KData on 57,394 ejaculates collected from 77 Murrah buffalo bulls maintained over the period from 2005 to 2015 were analysed for semen production traits. The effect of various non-genetic factors were analysed through least-squares analyses by using univariate General Linear Model (GLM) and repeatability estimates of those traits were estimated by Restricted Maximum Likelihood Method (REML) using the WOMBAT programme.ThesisItem Restricted ESTABLISHING ANTIGOUT ACTIVITY OF PIPER BETLE AND PHYLLANTHUS NIRURI IN BROILER CHICKEN P.VIKRAMA CHAKRAVARTHI ID No.(2019) Vikrama Chakravarthi, P; TANUVAS; Murugesan, S; Arivuchelvan, A; Sukumar, K; Arulmozhi, AThe present study was conducted to establish the antigout activity of P.betle and P.niruri in gout induced broiler chicken. The major nutrient composition analysis of P.betle and P.niruri leaf powders showed higher energy and more crude protein content in P.betle than P.niruri. The qualitative phytochemical analysis of P.betle and P.niruri extracts showed the presence of alkaloids, carbohydrates, flavonoids, phenols, terpenoids and saponins in both herbs. Volatile oils were detected only in alcoholic extract of P.betle and tannins were present only in P.niruri. The quantitative phytochemical analysis revealed high alkaloid content in P.niruri whereas high total phenolic content was noted in P.betle and total flavonoids were present in almost similar quantity in both herbs.ThesisItem Restricted MOLECULAR CHARACTERIZATION OF FOWL ADENOVIRUS IN CHICKEN(2019) Chitradevi, S; TANUVAS; Sukumar, K; Suresh, P; Balasubramaniam, GA; Kannan, DThe present study was undertaken to characterize indigenous fowl adenovirus in chicken and assess the pathology and viral load of fowl adenovirus infected tissues. The incidences of FAdV infection in commercial broiler birds were observed in the age group of day old to 42 days. The maximum incidence was noticed in the age group of 30 to 40 days (55%) followed by 20 to 30 days (20%), 40 to 50 days (12.5%), 0 to 10 days (10 %) and 10 to 20 days (2.5 %). The maximum mortality of 20 per cent was recorded in 30 to 40 days of age group. In case of broiler breeder mortality of 2.5 per cent was observed between 49 and 56 days and in commercial layer grower chicken, the age group affected was 42 to 91 days with mortality ranging from 0.3 to 7.7 per cent.ThesisItem Restricted COMPREHENSIVE CLINICAL EVALUATION AND THERAPEUTIC STRATEGIES IN RECUMBENT COWS(2019) Sivaraman, S; TANUVAS; Vijayakumar, G; Balasubramaniam, GA; Selvaraj, P; Dharmaceelan, SThe objective of the research work is to study the incidence, etiology, clinico pathological, radiographic and ultrasonographic changes in recumbent cows and to undertake various treatment strategies in its management. Cattle brought to Veterinary College and Research Institute, Namakkal in recumbency were subjected to detailed clinical examination, haemato-biochemistry, radiography, ultrasonography and liver biopsy. The data obtained were statistically analyzed and presented. The incidence of recumbent cow syndrome in cattle was 7.39 per cent (556 animals) of various disease conditions. Highest incidence of recumbent syndrome was noticed in 5-6 years age group, Jersey and periparturient animals.ThesisItem Restricted STANDARDIZATION OF ENERGY AND LYSINE REQUIREMENTS FOR “TANUVAS NAMAKKAL GOLD JAPANESE QUAIL”(2019) Shibi Thomas, K; TANUVAS; Amutha, R; Purushothaman, MR; Richard Jagatheesan, PN; Ezhil Valavan, STwo biological trials were conducted in “TANUVAS Namakkal gold Japanese quail” to determine the optimum level of energy and lysine requirements, to assess the production performance and to work out the cost effectiveness of different nutrient density. Nine diets were formulated with three levels of energy and three levels of lysine in a 3 x 3 factorial design for different age group like chick (0-2 weeks), grower (3-5 weeks) and layer (10-29 weeks for first trial and 7-26 weeks for second trial) stages. The chick and grower phase of both first and second trial was conducted by using seven hundred and twenty each, straight-run, day-old TANUVAS Namakkal gold Japanese quail chicks randomly grouped in nine treatment groups with four replicates of twenty chicks each. At six weeks of age, three hundred and sixty female quails were selected for each experiment and randomly allotted into same nine treatment groups with four replicates of ten chicks each for layer trial. All the birds were reared in cages under standard management practices throughout the study period.
