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Articles by V. Ravinder Reddy
Total Records ( 3 ) for V. Ravinder Reddy
  M.V. Reddy , V. Chinni Preetam , A. Rajashekher Reddy , U. Raj Kumar , V. Ravinder Reddy , K. Gautham , D. Hareesh and P. Guru Vishnu
  The three naked neck broiler genotypes (NaNa, Nana and nana) were investigated for the effect of temperature on juvenile body weights, shank length, immune competence and carcass characteristics. Weekly body weights were recorded from day old to six weeks (n = 417). The body weights were significantly higher in naked neck genotypes (NaNa and Nana) at 4th, 5th and 6th week of age. Birds with NaNa and Nana genotype recorded significantly (p≤0.05) higher weight gains during 4th (211.17 g) and 5th (207.96 g) week, respectively than nana genotype. The body weight gains were numerically higher at all ages either in NaNa or Nana genotypes without any significant difference. The shank length did not show any significant variation among the genotypes, which ranged from 78.54 mm in full feathered (nana) birds to 79.67 mm in heterozygous (Nana) population with an overall mean of 79.13 mm. Mean anti SRBC titre, anti NDV titre and response to PHA-P ranged from 3.55-5.6, 2.75-5.10 and 1.35-1.47 mm, respectively in different genetic groups. The dressing percentage was significantly higher in NaNa genotypes (71.96) than their normal (nana) siblings (69.66), which can be attributed to higher body weight and less losses due to lack of feathers in naked neck chicken. The liver, heart and gizzard weights are numerically higher in NaNa and Nana genotypes. The present study invariably concluded that Na gene in homozygous and heterozygous condition is more beneficial to exploit for better performance of Naked neck in tropical conditions.
  Daida Krishna , V. Ravinder Reddy , M.V.L.N. Raju , Sanjit Kanjilal , B.V.R. Nagarjuna and R.B.N. Prasad
  The effect of dietary inclusion of solvent extracted pongamia cake (SPC) and iso propyl alcohol (IPA) treated SPC supplemented with protease (4000 U kg–1), phytase (400 U kg–1) and liver tonic (1 g kg–1) using 360 day old commercial broiler chicks. At 60 g kg–1 level, growth depression and poor FCR caused by the experimental diets could not be alleviated by enzymes/liver tonic supplementation. Dietary inclusion of SPC increased percent giblet weight. Pancreas, abdominal fat, HI titres to SRBC, CMI response to PHA-P and relative weight of spleen were similar in all the dietary groups. However, bursa weight was (p<0.05) higher in SPC supplementation with phytase (400 U kg–1) than control. The serum protein levels (p<0.05) increased in IPA treated SPC at 60 g kg–1 at 3rd week of age. The serum cholesterol level was significantly (p<0.05) higher in SPC incorporated diet with supplementation with liver tonic. The pongamia cake did not influence the activity of alkaline phosphatase. The histological changes suggested that pongamia cake leads to hepatotoxicity and nephrotoxicity in broilers. It can be concluded that, supplementation of enzymes/liver tonic cannot alleviate the toxic effects of SPC or IPA treated pongamia cake at 60 g kg–1 level in the diet.
  T. Srilatha , V. Ravinder Reddy , S. Qudratullah and M.V.L.N. Raju
  An experiment was conducted to study the effects of alpha-lipoic acid at graded levels (0, 20, 40, 60, 80 mg/kg), Vit-E (10, 50 mg/kg) and their combination in a 5 x 2 factorial design on performance, anti-oxidation and immune response of broilers. 400 day-old male broilers were divided into 10 treatment groups, each with 8 replications (5 broilers in each) and fed one of the test diets till 6 weeks of age. Supplementation of Lipoic acid in broiler diet at 80 mg/kg gave significantly (p<0.05) higher BWG than control. The humoral immune response to NDV at 28 days age significantly (p<0.05) increased with lipoic acid at 20 and 80 mg/kg plus Vit-E 50 mg/kg. At 42 days age, HI titers were significantly (p<0.05) higher in all diets supplemented with lipoic acid than control. Cell mediated immunity was significantly (p<0.05) higher on diets that contained lipoic acid at 60 and 80 mg/kg than control. Similarly, Vit-E at 50 mg/kg also had significantly (p<0.05) higher CMI than Vit-E at 10 mg/kg. Supplementation of lipoic acid and vitamin E influenced the activities of lipid peroxidase. Inclusion of lipoic acid in all dietary treatment groups increased glutathione peroxidase levels. RBC catalase levels significantly (p<0.05) increased on diets that contained lipoic acid at 60 mg/kg. It is concluded that alpha - lipoic acid at 80 mg/kg and Vitamin E at 50 mg/kg may be supplemented to the broiler diet for improved growth, antioxidant status and better immune responses.
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