Chaurasia R.K.,Krishi Vigyan Kendra |
Mech A.,National Research Center on Mithun |
Dhali A.,NIANP |
Indian Journal of Animal Sciences | Year: 2013
A comparative study on effect of altitude on growth performance and nutrient utilization in mithun calves was carried out at National Research Centre on Mithun at Medziphema farm (300 MSL) and Porba farm (2100 MSL), to find its adaptability so that it can be reared a low altitude to compensate the high demand of mithun meat in the state. The mithuns of either sex were selected and fed in confined condition. Growth rate of 472.7 g/ day and 470.55 g/day were obtained during the experimental period at Medziphema and Porba farms which were nonsignificant. DM, OM, EE, CF and TCHO intake were significantly different and CP intake does not differ significantly. However CP, CF and TCHO digestibility differed significantly at both the altitude. Dry matter, digestible crude protein, total digestible nutrients and Metabolizable energy intake at both the altitude were nonsignificant. Feed conversion efficiency at both farms were same for DM and DCP intake; however, the values TDN intake differed significantly. Results on the body weight gain showed that there was no significant difference at both the farms which means that mithuns can be reared at low altitude without any difference in their growth rate and can be an alternative source for providing good quality meat.
Ramesh K.,IVRI |
Sejian V.,NIANP |
Hyder I.,NTR University of Health Sciences
Tropical Animal Health and Production | Year: 2014
Heat and humidity stress is a constant challenge to buffalo rearing under tropical climatic conditions. Heat shock proteins (HSPs) constitute a ubiquitous class of highly conserved proteins that contribute to cell survival during different conditions of stress. The present study was carried out in Tarai buffaloes to study the expression of HSP70 in their peripheral blood mononuclear cells during different seasons and establish it as a marker of heat and humidity stress in buffaloes. Blood samples were collected from each healthy, non-lactating and non-pregnant buffalo above 2 years of age, once in the month of January (temperature-humidity index (THI) < 72) and in the month of May (THI > 72). Blood samples were also collected during October (THI = 72) to be used as calibrator/control. Real-time PCR was used to profile the HSP70 gene expression in the peripheral blood mononuclear cells (PBMCs). The relative expression values of HSP70 in Tarai buffalo was found to be significantly higher (P < 0.05) during summer season (2.37 ± 0.12) as compared to winter season (0.29 ± 0.04). The expression positively correlated with changes in physiological parameters like respiration rate (RR), pulse rate (PR) and rectal temperature (RT). In conclusion, it can be said that RR and HSP70 may act as characteristic physiological and cellular markers of heat and humidity stress in buffaloes. © 2014, Springer Science+Business Media Dordrecht.
Chaturvedi O.H.,Central Sheep and Wool Research Institute |
Bhatta R.,NIANP |
Sankhyan S.K.,Central Sheep and Wool Research Institute |
Karim S.A.,Central Sheep and Wool Research Institute
Indian Journal of Animal Sciences | Year: 2010
Male lambs (20), 2-3 months age and weighing 10.15±0.0.432 kg were selected and randomly divided into 2 groups of 10 each (Gland G2). Lambs in both the groups were grazed on natural rangeland from 07.00 to 18.00 hr, followed by night shelter in the animal shed. G2 lambs were maintained on sole grazing while lambs in G1, in addition to grazing received concentrate mixture @ 1.5% of their body weight. The mean biomass yield of the community rangeland was 13.8 q DM/ha. The roughage intake was similar between supplemented (G1) and non-supplemented (G2) group. However, there was significant difference in the total DMI, DCP and ME between G1 and G2. The digestibility of DM, OM, CP, NDF and ADF was higher in G1 as compared to G2. After 90 days of feeding, the body weight of lambs in G1 and G2 reached 21.64 and 18.74 kg, respectively. The average body weight gain and average daily gain in Gl was higher than that in G2 (8.63 kg and 95.9 g). The wool yield (g) and fibre characteristics, viz. hetro medullation (%), staple length (cm) and crimp per centimeter did not differ between the two groups. However, diameter (micron) and hairy medullation (%) were higher (P<0.05) in G1 than that in G2. The cost: benefit ratio of the supplementary feeding was 1: 1.42. It is concluded from this study that the biomass yield of the community rangeland in semi-arid region of India is low and insufficient to meet the nutrient requirement of weaner lambs. However, concentrate supplementation @ 1.5% of the body weight to the lambs during this active phase of growth enhanced their growth rate for cost effective mutton production.
Malik P.K.,National Dairy Research Institute |
Singhal K.K.,NIANP |
Soren N.M.,NIANP |
Thulasi A.,National Dairy Research Institute |
And 2 more authors.
Indian Journal of Animal Sciences | Year: 2013
Saponin content of Egyptian clover at 3 different cuts was determined and second cut fodder was selected for the supplementation @ 0 (T0), 15 (T1), 30 (T2) and 45 (T3)% to wheat straw based diet to study the effect on in vitro methane production and fermentation pattern Saponin level of the diet after inclusion of fodder was 0, 0.15, 0.30 and 0.45%, respectively in T0, T1, T2 and T3 Total gas production was significantly higher in T3 and T2 as compared to control group On the inclusion of clover, a reduction of 9.6, 15.2 and 23.6% in methane production was noticed in T 1, T2 and T3, respectively Decreasing proportion of methane in total gas with increasing levels of supplementation reflected that saponin up to 0.45% of diet did not affect the fermentability adversely Maximum reduction in protozoal numbers was observed in treatment T3 Significant increase in DM degradability as compared to control was reported in treatment T2 and T3 Likewise TVFA production (mmol/L) also increased considerably on berseem fodder supplementation Looking at the efficacy of saponin containing Egyptian clover, it may be inferred that there is an urgent need to explore the newer feed resources possessing substantial saponin and to establish their safe inclusion level in diet of ruminants.