| dc.description.abstract | Intensive broiler production now a day’s not only means that work involved in feeding,
handling, bio-safety and preventive medicine must be extremely efficiently, but also the
birds have to be kept healthy for as long as possible. Looking after these poultry populations
and making sure that the maximum standards of health are is a huge challenge and that is
why growth enhancers and products that improve and preserve the bird's over-all general
immune response are essential.
A study was conducted with green tea powder to evaluate their effect on broiler growth,
meat quality and the development of internal organ.
A total of one hundred day old chicks Cobb 500 broiler were purchased from the local
hatchery (Nourish Poultry and Hatchery Ltd.) and after seven days of acclimatization chicks
were randomly assigned into five treatment group, each group 20 chicks. The groups were
control T0 (basal diet), Green tea T1, T2 and T3 (0.5%, 1% and 2% with basal diet), antibiotic
(basal+0.1gm/kg oxytetracycline). The birds were reared in wire cages following a
completely randomized designed for a period of five weeks under recommended broiler
starter, grower and finisher diets. Except the dietary supplementation all rearing conditions
and protocol maintained were same for all the groups. The birds were reared for five weeks
and final performance parameter was studied in all the groups.
Results should that the initial body weights of group To, T1, T2, T3 and T4 day of the
experiment were 176.8 ±1, 184.2±1.3, 185.1±1, 190.2±084, 180.2±1.22 gm respectively and
after 35th day of experiment final body weight were 1972±3.22, 1992±2.77, 1940±3.17,
1778±3.52, 1918±2.81 gm respectively. The net body weight gains were 1795.2±2.22,
1807.8±1.47, 1754.9±2.17, 1727.8±2.68, 1737.8±1.52 gm respectively and economics of
production were analyzed and found the net profit per broiler. Green tea powder significantly
decrease feed intake To, T1, T2, T3 and T4 respectively 3058± 4.23, 2971±4.01, 2995±5.57,
3208±4.3 and 3226±5.25 and increase body weight.
Carcass weight, breast muscle and thigh muscle significantly difference from the control
group but no difference like heart and liver weight. Here the total cholesterol is lower in the
group of broiler supplied green tea 0.5% and compare to other group of GT and antibiotic
group. Antibiotic resistance is a significant problem and excessive use of antibiotics in
human as well as livestock and poultry must be discouraged. | en_US |
