Browsing by Author "Moorthy, M."
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ThesisItem Open Access Additive Effect of Sodium Diformate on Broiler Performance in Environmentally Controlled Housing System(TANUVAS, Chennai, 2015) Sukandhiya, K.; TANUVAS; Mani, K.; Moorthy, M.; Purushothaman, M.R.A biological experiment was conducted by using 300 day old, sex separated commercial broiler chicks belonging to single hatch. These chicks were randomly grouped into 6 treatments with 5 replicates of 10 chicks in each. All the birds were reared under standard management practices in an environmentally controlled house up to five weeks of age. Experimental diets were prepared by adding sodium diformate (NDF) at 0, 0.05, 0.10, 0.15, and 0.20 per cent level and oxytetracycline at 0.02 per cent level in the basal broiler feed and fed to the broilers up to the end of the experimental period. Production parameters such as body weight, feed consumption and mortality if any, were recorded at weekly interval and based on the collected data gain in body weight, feed conversion ratio and livability were worked out. At the end of the study period, two birds (one male and one female) from each replicate were randomly chosen and slaughtered to study the carcass characteristics. The intestinal contents and litter materials were collected for determination of microbial load. The collected data were analyzed statistically and the results were interpreted. Finally, the cost effectiveness of supplementing sodium diformate in broiler ration was calculated. Dietary supplementation of sodium diformate had significant (P<0.05) effect on the body weight of broilers. At fifth week, comparatively higher mean body weight was recorded in group T6 (1994.10 g) followed by group T5 (1978.36 g) than rest of the treatment groups. Similarly better body weight gain was recorded in sodium diformate supplemented group throughout the study period. It was noticed that as the dietary sodium diformate level increased, there was a proportionate increase in the body weight and body weight gain in broilers. Sodium diformate supplementation had no significant influence on the cumulative feed consumption in broilers. At five weeks of age, the group T6 recorded better feed conversion ratio (1.367) followed by group T5 (1.381) and T4 (1.382) than group T1 and T2 (1.435 and 1.430). It was observed that as the dietary sodium diformate level increased, there was a proportionate improvement in the feed conversion ratio in broilers. Supplementation of sodium diformate in the diet of broilers had no significant influence on the livability during the study period. Group T5 recorded significantly (P<0.05) higher antibody titre (4.14) against Ranikhet disease followed by groups T6 (3.71) and T4 (3.43) than the rest of the treatment groups. Dietary sodium diformate had no significant influence on the carcass characteristics viz. eviscerated weight, ready-to-cook weight, heart yield, liver yield, gizzard yield, giblets yield in broilers. However, the group T6 recorded better eviscerated and ready-to-cook yield percentage compared to other treatment groups. The sodium diformate supplemented group recorded comparatively lower abdominal fat yield (1.09-1.16 %). Dietary supplementation of sodium diformate had no significant influence on the physical properties of meat quality of broilers reared in environmentally controlled housing system. The pH of the breast and thigh muscle ranged between 5.74 and 6.07 and 6.21 and 6.36 respectively. At 35 days of age, irrespective of dietary treatments, the water holding capacity was higher in the thigh muscle than the breast muscle in broilers. Feeding of sodium diformate to broilers did not influence the litter moisture and pH during the study period. There was an increase in the litter moisture percentage and decrease in the pH of the litter material at the end of the experimental period when compared to the beginning of the experimental period. Supplementation of sodium diformate to broilers had significant influence on the litter microbial load at five weeks of age. The total bacterial count in litter was significantly (P<0.05) lower in the group T6 (5.44) than the rest of the treatment groups. Except the control group (5.46), the other groups recorded significantly (P<0.05) lower E.coli count. There was no salmonella recorded in the groups T4, T5 and T6 when compared to the other groups. The sodium diformate and oxytetracycline supplemented groups revealed no clostridial count at the end of the experimental period. Similarly, the sodium diformate supplemented groups recorded significantly lower or nil intestinal bacterial count (E. coli, salmonella and clostridial count). The group supplemented with sodium diformate at 0.2 per cent level had significantly increased villus length (2178.97 μm) followed by groups T5 (1860.55 μm) and T4 (1780.77 μm). At the end of the experimental period, the total feed cost per bird was highest in the group T5 (Rs.90.71). Production cost per kg live weight was comparatively lower in sodium diformate supplemented groups. The net profit per bird in sodium diformate supplemented groups was comparatively higher than the oxytetracycline fed and control group. The net profit per kg broiler was highest in group T6 (Rs.16.99). Based on the above results, it could be concluded that sodium diformate may be included at 0.15 and 0.2 per cent level in the diet of broilers for getting better production performance and net profitOtherItem Open Access Age at Induced Moulting of Commercial Laying Hens on Post-Moult Laying Performance(TANUVAS, Chennai, 2007-08) Thirunavukkarasu, P.; Moorthy, M.ArticleItem Open Access Albumen quality of eggs laid by induced moulted hens(Indian Poultry Science Association, 2008-04) Thirunavukkarasu, P.; Moorthy, M.; Viswanathan, K.; TANUVASA study was carried out to find out the effect of induced moulting of commercial SCWL laying hens at 60, 65 and 70 weeks of age group. A control group was kept without moulting at their respective ages. The layers were reared in cages for the entire experimental period adopting standard managemental and moulting practices. The birds, which were force moulted at the age group of 60, 65 and 70 weeks, had numerically higher egg production, lesser broken and shell less eggs after induced moulting, as compared to their respective control groups. Moulting improved the egg quality characteristics viz. albumen index and Haugh unit. As per experimental results observed, it is concluded that moulting can be induced in layers at the age of 70 weeks for improved egg quality characteristics.ArticleItem Open Access All in All out and Multiple Batch System in Broilers(Poultry Line, 2009-02) Moorthy, M.; TANUVASThe most practical program for broilers rearing has been the use of all in all out system. The farm will have only one batch of broilers. Belonging to the same batch at any time. Although more than one brooder house may be with in the enclosure the chicks should be similar age, the oldest being no more than 7 days older than the younger.ArticleItem Open Access Aloe vera in White Leghorn layer diet(Indian Poultry Science Association, 2010-08) Moorthy, M.; Edwin, S.C.; TANUVASOne hundred and sixty commercial layer birds belonging to a single hatch were wing banded, weighed and randomly allotted into four treatment groups with four replicates of ten birds each. The birds were reared in colony cages with uniform floor, feeder and waterer space and were reared under standard management conditions throughout the experimental period. Treatment groups were T1- control; T2- 0.1% aloe vera powder; T3-0.1% aloe vera + 0.1% turmeric powder and T4-0.1% aloe vera and 0.1% probiotic powder. Significantly (P<0.05) higher hen housed egg production, feed conversion ratio and return over feed cost were observed T1 when compared to other treatment groups. No significant difference was observed in feed consumption, per cent hen day egg production and per cent broken eggs. It can be concluded that inclusion of 0.1% aloe vera in White Leghorn diet is economical compared to its combination with turmeric and probiotic at 0.1 per cent level.ArticleItem Open Access Application of HACCP in Broiler Production(2008-05) Geetha, R.; Moorthy, M.; TANUVASSuccessful implementation of regulating mechanism for quality assurance is a challenge in food industry, poultry is no exception The challenge tor poultry industry is to implement food safety strategies that are effective and sustainable at all stages of poultry production chain.ArticleItem Open Access Biosecurity for Poultry(Poultry Fortune, 2007-03) Arun, I.; Moorthy, M.; TANUVASDisease outbreaks cost poultry producers and related industries millions of dollars a year in lost revenue. To minimize these losses, disease prevention methods must be followed, including practices controlling disease-causing organisms (pathogens) and their vectors. Such disease control measures are collectively termed biosecurity.ArticleItem Open Access Body Temperature Control in Poultry(Poultry Line, 2012-07) Rajendran, K.; Edwin, S.C.; Moorthy, M.; Amutha, R.; Anandhi, M.; TANUVASChickens being warm blooded animals have the ability to maintain uniform body temperature. However, the mechanism for accomplishing this is efficient only when the ambient temperature is within certain limits because the birds cannot adjust extreme temperatures. Therefore it is important that chickens should be housed in an environment which enables them to maintain their thermal balance.ArticleItem Open Access Breeder Geese Management(Poultry Punch, 2014-03) Moorthy, M.; Edwin, S.C.; TANUVASThe total number of eggs laid by a geese in a year does not exceed 30-50 because geese are seasonal layers. Geese selected for breeding 2 to 3 months before laying.ArticleItem Open Access Breeding Programme For Commercial Turkey, Duck And Japanese Quail(Poultry Line, 2008-03) Saravanan, S.; Moorthy, M.; TANUVASThe poultry industry has a history of using breed crosses and more recently, strain crosses in poultry production, mainly to take advantage of heterosis.ArticleItem Open Access Breeding System in Poultry(Poultry Fortune, 2007-05) Saravanan, S.; Moorthy, M.; TANUVASThe breeding of chicken has passed through the total presently known system of breeding. In fact, each method has been and still is being successfully. But the vast majority of chicken in America today are hybrids of one form or another, either strain crosses, breed crosses or crosses between inbred lines.ArticleItem Open Access Brooding, Rearing and Sex Separate Feeding of Broilers(Poultry Punch, 2009-03) Sumathi, P.; Moorthy, M.; TANUVASBrooding refers to early period of growth when young chicks are unable to maintain body temperature with out the aid of supplemental heat. Rearing encompasses brooding and subsequent growing period until Sexual maturity.ArticleItem Open Access Carcass Characteristics of Broilers Fed Diet with Aloe Vera and Curcuma Longa(Indian Veterinary Journal, 2009-12) Mehala, C.; Moorthy, M.; Amutha, R.; Ravi, R.; TANUVASIn this study inclusion of Aloe vera and Curcuma longa in broiler diet showed no significant differences in feed consumption, livability, carcass characteristics viz. pre-slaughter, New York dressed, eviscerated weights, ready-to-cook percentage and giblets weight and abdominal fat percentage, breast and thigh muscle cholesterol level.ArticleItem Open Access Carcass Characteristics Of Broilers Fed With Crude Rice Bran Oil(Indian Veterinary Association, 2007-06) Anitha, B.; Moorthy, M.; Viswanathan, K.; Venukopalan, K.; TANUVASRice is the primary cereal for human food in southern states of India and the oil is extracted from the rice bran, utilized as important feed resources in animals and poultry. In broilers, dietary inclusion of rice bran oil can result in higher weight gain and lower cost of feed per kilogram of live weight gain and lower cost of feed per kilogram of live weight (Purushothaman et al., 2005). Hence, the present study was planned to determine the carcass characteristics of broilers by feeding different levels of crude rice bran oil in the diet.OtherItem Open Access Carcass Characteristics of Broilers Fed with Different Levels of Maize Bran with and without Non-starch Polysaccharide Hydrolyzing Enzyme(TANUVAS, 2010) Byju, S.; Moorthy, M.; Edwin, S.C.; Mohan, B.ArticleItem Open Access Carcass Characteristics of Broilers Fed With Glucose, Egg Powder and Whey Powder During Juvenile Period(Indian Veterinary Association, 2016-08) Prabakar, G.; Moorthy, M.; Mani, K.; Mohan, B.; Rajendran, K.; Kirubakaran, A.; TANUVASA biological trial was conducted at in commercial broiler chicks from 0 to 6 weeks of age by supplementing different levels glucose, egg powder, whey powder and their combination to the basal diet The supplementation of glucose, egg powder, whey powder and their combination in the diet of broilers had significant influence on per cent yield of eviscerated (P<0.05), ready- to- cook; (P<0.05), liver (P<0.01) and giblet (P<0.05) weight at sixth week of age.ArticleItem Open Access Commercial Egg Preservation(Livestock international, 2006-10) Moorthy, M.; TANUVASThe egg being a perishable commodity should be consumed at the shortest possible time otherwise it has to be preserved to retain its quality. The quality of an egg is in its prime when freshly laid and begins to decline gradually if not stored properly.ArticleItem Open Access Control of Pests in Poultry Farms(Poultry Line, 2012-07) Rajendran, K.; Edwin, S.C.; Moorthy, M.; Amutha, R.; Ananthi, M.; TANUVASPoultry are infested with a variety of insects and mites that live on the skin and feed on skin debris, feathers and blood. This results in lowered growth rate, reduction in egg production and in case of heavy infestation there will be debility and death of the birds.