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Effect of adding, green tea leaves in diet and its aqueous extract in water as natural antioxidants on growth performance, digestibility coefficients and some blood parameters of growing rabbits
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Abstract: The objective of this study was to evaluate the effect of adding green tea leaves in diet and its aqueous extract in water as na1ural antioxidants on growth performance, digestibility, some blood parameters and carcass characteristics of growing rabbit One hundred and forty APRI line weaned rabbits (20 rabbit per treatment) of about 5 weeks of age with an average live body weight of 580 gm, were used in this study.
Seven experimental treatments were designed in this experiment to evaluate different levels of green tea leaves in diets and the same doses of green tea extract in water, which calculated as gm green tea /kg live body weight The experimental treatments were as follows: control (received basal diet and without any Supplementation in water), GTL2 (received 2% green tea leaves powder in diet and without any supplementation in water), GTL4 (received 4% green tea leaves powder in diet and without any supplementation in water) GTL6 (received 6% green tea leaves powder in diet and without any supplementation in water), GTE2 (received basal diet and aqueous green tea extract at equal dose of GTL2 supplementing in water), GTE4 (received basal diet and aqueous green tea extract at equal dose of GTL4 supplementing in water) and GTE6 (received basal diet and aqueous green tea extract at equal dose ofGTL6 supplementing in water).
The results of this. study showed that final body weight and daily weight gain did not significantly differences among rabbits received control, GTL2 and GTE2 treatments. While, final body weight and daily weight gain were decreased significantly with other levels of GTL in diet or GTE in water. Feed intake (gm/d) was decreased significantly adding GIL in diet or GTE in water. Feed conversion ratio improved significantly with adding GTL in diet or its GTE. Mortality rate did not significantly affect by experimental treatment Supplementing GTL in rabbit's diet or GTE in water had no significant effect on nutrient digestibility, except for digestion coefficient of CP, which significantly decreased with supplementing GTL or GTE. Addition of dietary green tea leaves or its aqueous extract at water decreased significantly both blood serum cholesterol and total lipids as compared with that of control. In addition there was no adverse effect on both liver and kidney functions. In conclusion, supplementing 2% green tea leaves in diet or its aqueous extract at equal dose in water as natural antioxidants for growing rabbits can reduce lipids metabolism and cholesterol content in meat without any adverse effect on their growth performance. Also, evidences indicated that green tea can decrease blood lipids tractions.
Keywords: Rabbit, green tea, digestibility, blood, growth performance.
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| Publication year |
2013
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| Pages |
420-432
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| Availability location |
معهد بحوث الانتاج الحيوانى-شارع نادى الصيد- الدقى- الجيزة
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| Availability number |
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| Organization Name |
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| serial title |
The 4th Scientific Conference of Animal Production Research Institute (APRI) 12-13 Nov. 2013The 4th Scientific Conference of Animal Production Research Institute (APRI)
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| Author(s) from ARC |
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| Agris Categories |
Animal physiology - Nutrition
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AGROVOC
TERMS |
Antioxidants.
Blood composition.
Carcass composition.
Digestibility.
Rabbits.
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| Proposed Agrovoc |
growth performance;green tea;
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| Publication Type |
Conference/Workshop
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