Browsing by Author "Kumar, K. Suresh"
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ArticleItem Open Access Effect of concentrate feed supplementation during different physiological stages in Madras Red Sheep(Agricultural Research Communication Centre, 2018-04) Kumar, P. Suresh; Pasupathy, Karu; Kumar, K. Suresh; Veeramani, P.; Vasanthakumar, P.; Gopi, H.; TANUVASThis study was undertaken to assess the performance of Madras Red sheep fed concentrate feed at different physiological stages such as prior to breeding (14 days), late gestation (last 42 days) and early lactation (first 60 days) and compounded feed for growing lambs up to 120 days of age. The study was conducted at Postgraduate Research Institute in Animal Sciences, Kattupakkam, Tamil Nadu. In this, sixty ewes were selected in the age group of 3 to 5 years and divided into three groups with twenty in each group. The first group was allowed for grazing for seven hours daily from 9.00 A.M to 4.00 P.M and served as control group (G1).The second and third group (G2 and G3) of animals were supplemented with concentrate feed @ 10% and 20% of their daily dry matter requirement, respectively. The result indicates that the supplementation of concentrate feed to sheep significantly (p<0.05) improved the production and reproduction performance of sheep in terms of body weight gain during late pregnancy and early lactation, conception rate, lambing percentage, birth weight and ADG of lambs in group (G3) when compared to concentrate feed supplementation @ 10 % of dry matter requirement (G2) or nonsupplemented groups (G1). It is concluded that the net profit available per ewe was more in G3 followed by G 2 and G1 groups.ArticleItem Open Access Egg: Embryo Weight Ratio as an Indicator of Dwarfism Induced by Infectious Bronchitis Virus(Avian Pathology, 2004-06) Raj, G. Dhinakar; Kumar, K. Suresh; Nainar, A.M.; Nachimuthu, K.; TANUVASA Simple objective method to quantify embryo dwarfism induced by infectious bronchitis virus in embryonated chicken eggs has been used to determine endpoints in virus titration and neutralization assays. The EE ratios were compared with the uninoculated control eggs and endpoints could be calculated objectively. EE indices were also calculated by dividing the EE ratios of inoculated embryonated chicken eggs by the mean EE ratio of uninoculated controls, or in the case of virus neutralization tests by the mean EE ratio of eggs inoculated with virus alone. Although this mean EE index did not reflect the dwarfing (or lack of it) in individual eggs, it served as a group indicator. This method would be useful to observe embryo lesions especially in field (non-egg adapted) infectious bronchitis virus isolates, which does not cause observable dwarfing until several embryo passages.ArticleItem Open Access Genotypic Characterization of Infectious Bronchitis Viruses from India(Indian Journal of Biotechnology, 2007-01) Kumar, K. Suresh; Raj, G. Dhinakar; Raja, A.; Ramadass, P.; TANUVASThesisItem Open Access Genotyping of Infectious Bronchitis Virus(TANUVAS, 2003) Kumar, K. Suresh; TANUVASArticleItem Open Access Influence of Season on Milk Composition of Jersey X Red Sindhi Crossbred Cows Under Farm Condition(2018-01) Maheswari, S.; Jaishankar, S.; Gopi, H.; Kumar, K. Suresh; TANUVASA study was conducted to assess the influence of season on milk composition of Jersey X Red Sindhi crossbred cows maintained at Post Graduate Research Institute in Animal Sciences, Kattupakkam. A total of 720 milk samples were collected at weekly interval from December 2015 to May 2016. The entire study period was divided into two seasons namely, winter (December-February) and summer (March-May). The milk composition viz., fat, solid not fat, total solid, protein and lactose content of milk were analyzed. All parameters of milk except lactose, showed highly significant (p<0.01) difference between seasons.ThesisItem Open Access PRODUCTIVE AND REPRODUCTIVE PERFORMANCE OF MADRAS RED SHEEP UNDER ACCELERATED(TANUVAS, Chennai, 2015) Kumar, K. Suresh; TANUVAS; Sundaram, S. Meenakshi; Sivakumar, T.; Selvakumar, K.N.; Gopi, H.The study was carried out Lo find the productive and reproductive performance of Madras Red sheep under accelerated lambing system against the Conventional once-yearly lambing system. Seventy two cyclic Madras Red ewes between 2 & 4 years of age, belonging to the Sheep and Goat Breeding Unit of Postgraduate Research Institute in Animal Sciences, Kattupakkam were utilised for this study.ThesisItem Open Access Skin Follicles and It's Relationship with Wool Characteristics of Nilgiris, Merino and It's Crosses(TANUVAS, 2001) Kumar, K. Suresh; TANUVAS; Arunachalam, S; Sivakumar, T; Venkataramanujam, VArticleItem Open Access SKIN FOLLICLES AND ITS RELATIONSHIP WITH WOOL CHARACTERISTICS OF NILGIRI, MERINO AND ITS CROSSES(2003) Kumar, K. Suresh; Arunachalam, S.; Sivakumar, T.; Ramesh, V.; Muralidharan, M.R.; TANUVASA study on skin follicles and its relationship with wool characteristics of Nilgiri, Merino and its crosses was carried out. Statistical analysis revealed a highly significant (P<0.01) negative correlation between S/P ratio and fibre diameter in Nilgiri and Merino, but Nilgiri X Merino had a non-significant negative correlation. A highly significant (P<0.01) positive correlation was found between 5/ P ratio and fibre length and crimp. In Nilgiri, the total number of follicles had a non~significant negative correlation with fibre diameter, a highly significant (P<0.01) positive correlation with crimp.