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4 September, 2021 11:35:35 PM / LAST MODIFIED: 4 September, 2021 11:43:12 PM

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Use of probiotic and phytobiotic for safe broiler production in Bangladesh

many studies have shown that antibiotics administered to poultry and livestock are poorly absorbed through gut and usually excreted without metabolism. These excreted antibiotics eventually accumulated in the environment and enter into human food chain as well as development of multidrug resistance bacteria
Dr. Kazi Rafiqul Islam
Use of probiotic and phytobiotic for safe broiler production in Bangladesh

The poultry industry has grown so fast alongside an irrational use of antibiotics to maximize profit and made it cost effective production during last few decades. The rising and indiscriminate use of antibiotics might result in deposition of residues in poultry food products having detrimental effects on public health; and due to development of resistance to these drugs by the microorganisms, many diseases are becoming difficult to treat both in humans and animal.

On the other hand, many studies have shown that antibiotics administered to poultry and livestock are poorly absorbed through gut and usually excreted without metabolism.

These excreted antibiotics eventually accumulated in the environment and enter into human food chain as well as development of multidrug resistance bacteria. In this regard, to find out the alternatives is of paramount importance for the production of safe meat and egg.

Therefore, recently much research attention has been diverted towards the search for alternatives to antibiotic as in-feed growth promoter after banding of the antibiotic growth promoters by the EU, which in turn has resulted in the enhanced use of different types of feed additives in poultry feed. Along with our recently published data and evidences published elsewhere the use of probiotics, prebiotics, synbiotic, phytobiotics, their combinations and spirulina as growth promoters has many potential benefits.

We have recently shown that average final live weight gain and feed conversion ratio were highest in probiotic compared to antibiotic as growth promoter (AGP) treated broiler chicken. The mean hematology values regarding the total erythrocyte count, haemoglobin concentration, packed cell volume, and erythrocyte sedimentation rate differed significantly (P<0.05) among groups. Intestinal pH of all the treatment groups was significantly decreased compared to control group (P<0.05) where phytobiotic group was significantly (P<0.05) lower than all other groups. Highest total viable cell count was observed in control group and total coliform count in phytobiotic group was significantly lower compared to AGP and other treatment groups (P<0.05).

We have also shown that supplementation of probiotic and phytobiotic in feed significantly reduced triglyceride, cholesterol and HDL values compared to the value of control group (P<0.05). In addition, our dose dependent study with phytobiotic showed that although phytobiotic at 10 gm/kg in feed showed a significantly lowest intestinal pH, lower total viable count and lowest total coliform count and the best growth performances among all the groups including AGP group; however, we found most cost effective performance with phytobiotic at 2 gm/kg in feed.

Probiotic or its combination with phytobiotic has the potential to be exemplary alternatives to antibiotic growth promoters due to positive growth performance, lower FCR, carcass quality, and improved gut health of broiler chicks. However, their beneficial effects as growth promoters depend on various factors such as the compatibility between the diet and the alternatives, hygiene standards and good farm management practices. Moreover, keeping in view the consumers demand for safe meat and eggs as well as to combat with antimicrobial resistance efforts are being needed to explore further possibilities where alternatives of antibiotics in poultry production with desirable attributes without affecting the welfare of the layer and broiler birds. Meantime, awareness has to create to discourage the application of antibiotics as in-feed growth promoter as well as rational use of antibiotics in poultry industry.

The writer is a professor in Department of Pharmacology, Bangladesh Agricultural University, Mymensingh. E-mail:  [email protected]

 

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Published by the Editor on behalf of Independent Publications Limited at Media Printers, 446/H, Tejgaon I/A, Dhaka-1215.
Editorial, News & Commercial Offices : Beximco Media Complex, 149-150 Tejgaon I/A, Dhaka-1208, Bangladesh. GPO Box No. 934, Dhaka-1000.

Editor : M. Shamsur Rahman
Published by the Editor on behalf of Independent Publications Limited at Media Printers, 446/H, Tejgaon I/A, Dhaka-1215.
Editorial, News & Commercial Offices : Beximco Media Complex, 149-150 Tejgaon I/A, Dhaka-1208, Bangladesh. GPO Box No. 934, Dhaka-1000.

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