Effect of Garlic and Thyme Extracts on Growth Performance and Carcass Characteristics of Broiler Chicks

Published on: 05/23/2013
Author/s : Anvar Amouzmehr, Behrouz Dastar (Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran); Jalil Ghassemi Nejad, Kyung Il Sung (Department of Animal Life System, College of Animal Life Sciences, Kangwon National University, Chuncheon, Republic of Korea); Jayant Lohakare (Department of Animal Biotechnology, College of Animal Life Sciences, Kangwon National University, Chuncheon, Republic of Korea) and Fereidoun Forghani (Department of Food Science and Biotechnology and Institute of Bi

INTRODUCTION Antibiotics have been extensively used as feed additives and growth promoters in animal feed industry. The use of antibiotics as feed additives is hazardous due to crossresistance and multiple resistances of pathogens (Schwarz et al., 2001). Therefore, European Union has banned the application of most of antibiotics in poultry diets. Thus, during the past decade many studies investig...

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May 23, 2013
no more effect of garlic, i try 2 years used 0.3% informula with china garlic 65%.
Dr Asad Abbas Malik Dr Asad Abbas Malik
DVM, M.Phill Animal Nutrition
May 23, 2013
Dear Dr. Jalil,
I just want to ask one thing about the trial feeds given to the birds.
as you mentioned:
a- 1-21 Day Birds were given 18.7% CP and 3000 ME.
b- 22-42 Day Birds were given 20.8% CP and 2890 ME.
its very strange, is this a typing mistake? or if this is right then why you used the started feed at the end of experiment and finisher feed for first 21 days?
Sushil Chandra Sushil Chandra
Master in Poultry Nutrition 1975
May 23, 2013
There looks some confusion in preparing starter and finisher diets.
we generally use higher protein i.e 22 % and ME 2900-2950/kcal in starter diet and around 19-20%protein and 3050-3100 ME in Finisher diet.If this a typographical error,then author needs to correct the same.
We also prefer using pre stater from 1to 14 days,starter from 15to 25 days and finisher from 26 to 36 days onwards.
The performance using garlic and Thyme extract in the experiment donot show significant changes in body wt.

Dr Sushil chandra
Dr Manal Kamal Dr Manal Kamal
Specialist in Animal Nutrition
May 24, 2013
Their is any significant effects on all parameters you measured and this is not illegal, so, what about immunity.
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