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Articles by Shabana Naz
Total Records ( 3 ) for Shabana Naz
  Rifat Ullah Khan , Shabana Naz and Kuldeep Dhama
  Heat stress has been associated with depressed growth in meat-type birds and a decline in egg production and quality in laying hens. During heat stress, feed intake tends to decrease, thus the availability of certain important minerals is reduced. Chromium (Cr) is one such mineral which is required for maintaining growth performance in poultry due to its role in growth, metabolism and alleviation of lipid peroxidation. The available scientific literature on Cr has documented the beneficial effects of this essential mineral in improving poultry performance under conditions of environmental heat stress. In the present study, past and present information about the specific role of Cr in heat-stressed poultry is presented.
  Rifat Ullah Khan , Shabana Naz , Kuldeep Dhama , Mani Saminathan , Ruchi Tiwari , Gwang Joo Jeon , Vito Laudadio and Vincenzo Tufarelli
  Trace elements supplementation is now widely considered not only essential but also beneficial to avian species. In the last few decades, chromium (Cr) has been considered to play important role in livestock and poultry nutrition, production and health and also as a potent toxin depending on the dosage levels. It has been documented that chromium may enhance growth rate and egg quality in meat and egg type chickens, respectively. Chromium is identified as an essential nutritional supplement and it has been utilized for weight gain, to improve Feed Conversion Ratio (FCR), increase relative organ weight, muscle development and relative breast mass, that’s why Cr has been a popular mineral supplement. It is also a potent antioxidant and hypocholesterimic agent. It increases the retention of other essential elements in blood and decreases their excretion. The beneficial effects of Cr have been linked with improved nutrient digestion and enhanced metabolism. Chromium (Cr) supplementation may improve function of various digestive organs such as liver and pancreas with regards to secretion of digestive enzymes. Supplementation of Cr has promising effects on the immune system by way of relative increase in lymphoid organ weight (bursa of Fabricius, spleen and thymus), decreased heterophil:lymphocyte ratio, enhanced antibody response against infectious diseases and increased Cell-Mediated Immune (CMI) response. In the current review some of the beneficial aspects of Cr in poultry nutrition and their possible mechanisms of actions are discussed with a view to explore and promote its optimum utilization in poultry production and health.
  Rifat Ullah Khan , Shabana Naz , Kuldeep Dhama , K. Karthik , Ruchi Tiwari , Mutassim M. Abdelrahman , Ibrahim A. Alhidary and Arshad Zahoor
  Recently, animal food industry has shown an increasing interest in Direct-Fed Microbials (DFM) to keep the concept of safe food supply at the consumer level. In the absence of suitable growth stimulant after banning the use of antibiotics in animal feed, a positive manipulation of rumen microbes has become the field research for entrepreneurs and research scientists. Direct-fed microbials is a term reserved for naturally occurring live microbes that can be supplemented orally to produce a beneficial health response in the host animal. A number of genera of live microorganisms including; bacteria, yeast and fungi are frequently used in different combination feed as DFM for domestic ruminants. It has been documented that these live culture of microbes improve ruminant productivity, milk production, immunity, digestibility of feed, counter infectious pathogens and protect health. Possible attempts have also been undertaken to justify the mechanism of these microbes. This review tries to summarize the effect of supplementation of DFM on the production, immune response, fermentation pattern and safeguarding health. The discussed concepts and advances concerning to DFM implementation will be useful not only for the researchers, animal owners, feed manufacturers, pharmacists, pharmaceutical companies, stake holders but will also boost the economic gains and profits by promoting the ruminant health and production through feed modification.
 
 
 
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