Browsing by Author "Churchil, R. Richard"
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OtherItem Open Access Biological Strategies to Address Air Pollution From Guinea Fowl Production(TANUVAS, 2013-08) Nithyavani, A.; Srinivasan, G.; Omprakash, A.V.; Gnanaraj, P. Tensingh; Ramamurthy, N.; Rajini, R. Asha; Churchil, R. Richard; Manohar, G. RajOtherItem Open Access Breeding Practices in Aseel Breeding Farms and Egg Production Performance of Aseel Breeder Hens In Tiruppur District of Western Tamil Nadu(TANUVAS, Chennai, 2018-12) Srinivasan, G.; Murali, N.; Churchil, R. Richard; Sangilimadan, K.; TANUVASA survey was conducted in Aseel breeding farms in Tiruppur district of Tamil Nadu. This survey was conducted in 17 Aseel breeding farms with the aim of investigating the common breeding practices and breeder performance in Aseel breeding farms. These farms are under contact farming with an integrator company for hatching egg production. The study revealed that the age of housing of Aseel breeders in deep litter laying houses ranged from 80 to 104 weeks among the farms.ArticleItem Open Access Current concepts in nutrition and feeding of hybrid layer chicken(TANUVAS, Chennai, 2021-11) Churchil, R. Richard; Suresh, R.; TANUVASThe genetically improved modern commercial layers are capable of producing 330 eggs in their productive life of up to 72 weeks. The journey of genetic improvement continues and the breeding companies now developed ‘long life’ layers that can lay 500 eggs in 100 weeks of age. The changing production dynamics of layer chicken calls for better understanding of nutrient requirements and good nutritional programming. Prediction models are being used to assess the nutrient requirements of the hybrid layers; while, precision feeding of quantity of feed and or nutrients can lower feed costs and ensures more predictable bird performance. In-ovo and early chick nutrition give jump start at juvenile stage of chicken. The idea of split feeding, although beneficial in certain production parameters, suffers the disadvantages of additional infrastructure and workforce requirements. The nutritional programme for egg size, shell quality and feeding for value added designer egg production is aimed at increasing the profit to the farmers. In recent days, feeding for healthy gut that enables efficient digestion and absorption of nutrients has also gained paramount importance. The concept of feed nanotechnology can help in increasing nutrient availability and environment protection; while, phytogenic products can some extent replace the role played by antibiotic growth promoters. The advancements in biotechnology has opened up not only numerous opportunities for the development of products and technologies for poultry feeding, but also to study the influence of nutritional factors on genomics, proteomics and metabolomics.ThesisItem Open Access Development of transgenic spermatozoa in Chicken(Indian Veterinary Research Institute;Bareilly, 2005) Churchil, R. Richard; Sharma, DeepakArticleItem Open Access Dietary Supplementation of different Sources of Selenium on the Production Performance of Japanese Quail (Coturnix coturnix japonica)(Indian Veterinary Association, Chennai, 2019-02) Divya, S.; Churchil, R. Richard; Omprakash, A.V.; Vijayarani, K.; Srinivasan, G.; TANUVASEffect of different sources of dietary selenium (Se) on the production performance of. Japanese quail was studied for a period of six weeks. A total of 800 day old, quail chicks were randomly divided into eight treatment groups (T1 to T8), with four replicates of 25 chicks in each. The experimental groups consisted of T1-Control: Basal diet (standard Japanese quail ration without Se supplementation), T2-Basal diet + 0.2 ppm inorganic Se, T3-Basal diet + 0.5 ppm inorganic Se, T4-Basal diet + 0.2 ppm organic Se, T5- Basal diet + 0.5 ppm organic Se, T6-Basal diet + 0.1 ppm nano Se, T7- Basal diet + 0.25 ppm nano Se and T8-Basal diet + 0.25 ppm organic Se + 0.25 ppm nano Se. Dietary supplementation with 0.5ppm organic Se resulted in significantly higher body weight and body weight gain, better feed efficiency and per cent livability than other treatment groups in Japanese quail. The study indicated that organic Se supplementation at 0.5ppm level, significantly improved production performance of Japanese quail.OtherItem Open Access Differential Constitutive Expression of Toll-likd Receptor 7 (dTLR7) mRNA in Various Tissues of Native Ducks of Tamil Nadu(TANUVAS, Chennai, 2012-09) Kolluri, Gautham; Ramamurthy, N.; Churchil, R. Richard; Raj, G. Dhinakar; Kannaki, T.R.; TANUVASOtherItem Open Access Dimension of Poultry Houses in Aseel Breeding Production Performance of Aseel Parents in Tiruppur District of Western Tamil Nadu(TANUVAS, Chennai, 2018-12) Srinivasan, G.; Murali, N.; Churchil, R. Richard; Veeramani, P.; TANUVASA total of 52 Aseel breeding farms in Tiruppur district of Tamil Nadu were surveyed to assess the infrastructure and stocking capacity of the farms and the production ability of parent stock AseeI birds. The survey was conducted during November and December, 2018.ThesisItem Open Access EFFECT OF DIETARY CORIANDER SEEDS AND GARLIC ON PERFORMANCE AND BLOOD PARAMETERS OF JAPANESE QUAILS(TANUVAS, 2015) Mageshwari, K.R. Uma; TANUVAS; Srinivasan, G.; Churchil, R. Richard; Radhakrishnan, L.Two biological studies were carried out using Japanese quails (Coturnix coturnix japnníca) to find out the effect of dietary coriander seeds and garlic as powder as powder in feed either alone or in combination and oxytetracycline antibiotic feed supplement on the performance of Japanese quails. The first experiment was aimed at studying growth performance from 0 to 6 weeks of age and to evaluate the serum biochemical parameters and meat composition at six weeks of age. This was followed by 21 second experiment utilizing only females to study early stage egg production performance due to these feed supplements from 7 to 10 weeks of age.ArticleItem Open Access Effect of Dietary Supplementation of Herbal Seeds on Carcass Traits of Turkey Poults(Veterinary World, 2014-11) Bhaisare, Darshana B.; Thyagarajan, D.; Churchil, R. Richard; Punniamurthy, N.; TANUVASAim: The present study was conducted to find the effect of four herbal seeds on carcass traits of turkey poults. Materials and Methods: A biological study using Nandanam turkey poults (Meleagris gallapavo) for 8 weeks duration was carried out to evaluate the effect of phytobiotics-containing four herbal seeds influence on production performances like biweekly body weight and on carcass traits. 150 poults were randomly subjected to five dietary treatments in a completely randomized design with basal diet (T1), 0.5% (5 g/kg) level of each seeds thyme (Thymus vulgaris) (T2), fenugreek (Trigonella foenum graecum) (T3), fennel (Foeniculum vulgare) (T4) and cumin (Cuminum cyminum) (T5). Carcass traits like blood loss, feather loss, dressed weight, New York dressed weight, ready to cook yield and cut-up parts yield were studied. Results: The body weight at 8th week was higher (p<0.05) in poults fed with thyme; whereas at 6th week, fennel and cumin fed birds had better (p<0.05) body weight. Inclusion of herbal seeds did not affect the blood loss, dressed weight and ready to cook yield but it significantly (p<0.05) affected the feathered loss, New York dressed weight and giblet percentages. Feeding of fenugreek has improved New York dressed weight of poults. Feeding of fennel had depressive (p<0.05) effect on liver and gizzard weights. All the four phytobiotic seeds in feed had significant (p<0.05) reduction in breast weight with a compensatory improvement in drumstick and neck weights. Conclusion: The present study revealed that supplementation of phytobiotic herbal seeds has resulted in numerical improvement of body weight of poults throughout the study period whereas these seeds had negative effect on the yield of breast, with increased proportion of drumstick and neck.ArticleItem Open Access Effect of Dietary Supplementation of Neem Leaf Powder on Growth Performance of Japanese Quail(2015-06) Premavalli, K.; Ashok, A.; Omprakash, A.V.; Churchil, R. Richard; TANUVAS; Premavalli, K.; Ashok, A.; Omprakash, A.V.; Churchil, R. RichardA study was conducted to investigate the effect of dietary supplementation of neem leaf powder on growth performance of Japanese quail. A total of 200 day old Japanese quail chicks were utilized for this study. Dietary treatments consisted of 0, 0.25, 0.5, 0.75 and 1% Azadi- rachta indica powder added to the basal diet. Highly significant difference (P<0.01) in body weight was observed upto fourth week of age. Fifth Week body weight, feed conversion ratio and livability of quails at different periods were not influenced by the dietary treatments. It is concluded that dietary supplementation of 0.5% neem leaf powder induced significant improve- ment in body weight upto fourth week of age of Japanese quailArticleItem Open Access Effect Of Dietary Supplementation Of Protease On Early Reproductive Performance In Iapanese Quails [Coturnix Coturnix Japonica](2016-12) Hariharan, T.; Radhakrishnan, L.; Churchil, R. Richard; Omprakash, A.V.; Sanmugapriya, B.; TANUVASAn experiment was conducted to study the effect of two levels of Protease enzyme (100g and 200g /MT) on protein utilization and early reproductive performances of Japanese Quail (Coturnix Coturnix Japonica) chicks until 9 weeks of age.OtherItem Open Access Effect of Feeding Turmeric Powder on Processing Yield and Losses of Nandanam Broiler 2 Chicken(TANUVAS, 2013-08) Sangilimadan, K.; Omprakash, A.V.; Premavalli, K.; Pandian, C.; Churchil, R. RichardOtherItem Open Access Effect of Microbial Protease on Carcass Characteristics and Economic Performance in Japanese Quails (Coturnix Coturnix Japonica)(TANUVAS, 2013-08) Hariharan, T.; Radhakrishnan, L.; Churchil, R. Richard; Kanagaraju, P.; Omprakash, A.V.OtherItem Open Access Effect of Microbial Protease on Growth Performance in Japanese Quails (Coturnix Coturnix Japonica)(TANUVAS, 2013-08) Hariharan, T.; Radhakrishnan, L.; Churchil, R. Richard; Omprakash, A.V.; Kanagaraju, P.OtherItem Open Access Effect of Non-starch Polysaccharides Degrading Enzymes on the Growth Performance of Nandanam Quail-3(TANUVAS, 2013-08) Churchil, R. Richard; Omprakash, A.V.; Hariharan, T.; Radhakrishnan, L.; Kanagaraju, P.; Pandian, C.; Premavalli, K.; Sangilimadan, K.ArticleItem Open Access Effect of Noni (Morinda citrifolia) Fruit Juice on Production Performance of Layer Type Japanese Quails(Indian Veterinary Association, Chennai, 2019-05) Churchil, R. Richard; Omprakash, A.V.; Kanagaraju, P.; Daffine, S.; Pandian, C.; TANUVASThe efficacy of commercial noni fruit juice (Apollo Life Noni Juice ®) on production and early reproductive performances of Japanese quails at the concentration of 1 ml and 2 ml per litre of drinking water was tested. The supplementation had significantly (P<0.05) improved third and sixth week body weights, body weight gain and feed efficiency from 0 to 6 weeks of age and reduced the feed intake. Although the age at first egg laying was significantly (P<0.05) reduced due to supplementation, egg number, egg weight and egg mass during early laying period of 7 to 10 weeks were not altered.ThesisItem Open Access Effect of Phyllanthus Niruri Herb on Alleviation of Aflatoxicosis in Guinea Fowls(TANUVAS, Chennai, 2014) Thanabal, C.; TANUVAS; Ramamurthy, N.; Gnanaraj, P. Tensingh; Churchil, R. RichardThe various extracts of crude herb powder of Phyllanthus niruri auct. non. L. (P. amarus) tested for the presence of various phytochemicals revealed the presence of carbohydrates, glycosides, fixed oils, saponins, tannins, steroids, alkaloids, flavonoids and terpenoids. A biological study using Guinea fowl (Numida meleagris) for twelve weeks duration was carried out to evaluate the effect of Phyllanthus niruri herb powder on alleviation of aflatoxicosis. Day-old keets numbering two hundred and seventy were randomly subjected to six dietary treatments in a completely randomized design with control diet (T1), 1 per cent (10 g/ kg) level of Phyllanthus niruri herb powder (T2), 1 ppm aflatoxin B1 (T3), 2 ppm aflatoxin B1 (T4), 1 ppm aflatoxin B1 plus 1 per cent Phyllanthus niruri herb powder (T5) and 2 ppm aflatoxin B1 plus 1 per cent Phyllanthus niruri herb powder (T6) reared in cages. Keets were reared under standard managemental conditions up to twelve weeks of age. Production performance like biweekly body weight, weight gain, feed consumption, feed efficiency, livability and haematological and biochemical parameters, relative weight of certain visceral organs, gross and microscopic pathology and economics were studied. Results of the study revealed that, inclusion of aflatoxin B1 (AFB1) (2 ppm) adversely affected the body weight, weight gain and feed efficiency at fortnight during the experimental period. However, inclusion of AFB1 (1 ppm) in diet does not influence the production parameters. Haemoglobin content and lymphocyte count in group fed 2 ppm AFB1 were significantly (P<0.05) depressed whereas heterophil count was significantly (P<0.05) elevated than control at twelfth week of age. Serum concentrations of total proteins at sixth and twelfth weeks and albumin at twelfth week of age in Guinea fowls fed 2 ppm AFB1 were significantly (P<0.01) depressed whereas serum uric acid level was significantly (P<0.01) elevated at sixth and twelfth weeks of age than control. Serum concentration of SGPT and SGOT values were significantly (P<0.05) increased in AFB1 (2 ppm) fed groups at sixth and twelfth weeks of age. AFB1 (2 ppm) caused significant increase in relative weights of liver (P<0.01) and heart (P<0.05). AFB1 (1 ppm) caused no significant changes in hematology and biochemical parameters at sixth and twelfth weeks and relative weight of organs at twelfth week of age. Supplementation of 1 per cent Phyllanthus niruri herb powder to toxin free diet caused significant (P<0.05) depression in the weekly body weight, weight gain, feed consumption and feed efficiency whereas; relative organ weights and hematological and serum biochemical parameters revealed no significant changes compared to control. Livability was better in T2 than all other groups during the experimental period. Inclusion of 1 per cent Phyllanthus niruri herb powder in the AFB1 (2 ppm) treated diet significantly counteracted the toxic effects of AFB1 on final body weight, weight gain and feed efficiency at twelfth week of age. Decreased level of haemoglobin content, lymphocyte count, serum total proteins and albumin due to AFB1 (2 ppm) feeding were numerically increased by the supplementation of Phyllanthus niruri herb powder but the improvement was statistically non significant. The altered relative weight of liver due to AFB1 (2 ppm) feeding was significantly improved by Phyllanthus niruri herb powder supplementation. However, the reduction in net profit per bird caused by dietary aflatoxin (2 ppm) was not increased by supplementation of Phyllanthus niruri herb powder to the contaminated feed. Further, addition of herb powder has no value as supplement in improving the net profit.OtherItem Open Access Effect of Supplementation of Sacchromc Cerevisiae On Growth Performance Of Nandanam Chicken-4(TANUVAS, Chennai, 2018-12) Sangilimadan, K.; Premavalli, K.; Churchil, R. Richard; Omprakash, A.V.; TANUVASA biological study was conducted on the effect of supplementation of sacchromcerevisiae on growth performance of Nandanam chicken- 4 at Poultry Research Station, Madhavaram, TANUVAS, Chennai. A total of 90 day old chicks were housed in cage system of management and were randomly divided into three treatment groups with three replicates of 10 numbers of day old Nandanam chicks-4 each. An isocaloric and isonitrogenous experimental feeds were prepared by supplementation with sacchromcerevisiae at zero gram (control- Tl), 500gm (T2) and 1000gm (T3) per ton in feed of brooder mash fed adlibitum for a period of eight weeks under standard managemental conditions.