Search

Background: The reproductive and productive performance play significant role in judging the qualitative and quantitative traits in a dairy animal and has direct effect on the milk production and profitability in any dairy enterprise. Methods: The present study was conducted in Jharkhand State, wherein 180 members of Jharkhand State Cooperative Milk Producers’ Federation and 180 non-member dairy farmers were randomly selected from three districts of Jharkhand. The data was collected from a total of 360 respondents using structured interview schedule. For present study, 135 crossbred, 58 indigenous cattle and 82 buffaloes were selected from the members; whereas 102 crossbred cattle, 36 indigenous cattle and 79 buffaloes were selected from non-members. Result: The findings revealed that dairy animals reared by cooperative members showed better reproductive and productive performance that their non-member counterparts. This is attributed to reason that JMF members adopted better dairy management practices due to availability of timely veterinary services, quality feed and training on improved dairy practices. Therefore, through increased participation in JMF; creating awareness and training regarding improved dairy management, adequate extension, breeding policy and financial support would further enhance the productivity among the dairy animals in the state. [ABSTRACT FROM AUTHOR]

Suaeda fruticosa and S. monoica are important halophytes for ecological rehabilitation of saline lands. We report differential physio-chemical, photosynthetic, and chlorophyll fluorescence responses in these halophytes under 100 mM sodium chloride (NaCl), 50% strength (16.25 ppt) of seawater (SW)-imposed salinity, and 10% polyethylene glycol 6000 imposed osmotic stress at 380 (ambient) and 1200 (elevated) µmol mol–1 CO2 concentrations. SW salinity enhanced the growth in both species; however, compared with S. fruticosa, the S. monoica exhibited comparatively better growth and biomass accumulation under saline conditions at elevated CO2. Results demonstrated better photosynthetic performances of S. monoica under stress conditions at both levels of CO2, and this resulted in higher accumulation of carbon, nitrogen, sugar, and starch contents. S. monoica exhibited improved antenna size, electron transfer at PSII donor side, and efficient working of photosynthetic machinery at elevated CO2, which might be due to efficient upstream utilization of reducing power to fix the CO2. The δ13C results supported the operation of C4 CO2 fixation in S. monoica and C3 or intermediate pathway of CO2 fixation in S. fruticosa. Lower accumulation of reactive oxygen species, reduced membrane damage, lowered solute potential, and higher accumulation of proline and polyphenol contents indicated elevated CO2-induced abiotic stress tolerance in Suaeda. Higher activity of antioxidant enzymes in both species at both levels of CO2 help plants to combat the oxidative stress. Upregulation of NADP-dependent malic enzyme and NADP-dependent malate dehydrogenase genes indicated their role in abiotic stress tolerance as well as photosynthetic carbon (C) sequestration. Operation of C4 type CO2 fixation in S. monoica and an intermediate CO2 fixation in S. fruticosa could be the possible reason for the superior photosynthetic efficiency of S. monoica under stress conditions at elevated CO2. [ABSTRACT FROM AUTHOR]