| Titles |
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English :
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Effect of supplementing copper sulfate on productive performance and carcass traits of Pekin ducks: 1- growth performance
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Arabic :
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تأثير اضافة كبريتات النحاس على الاداء الانتاجى و صفات الذبيحة في البط البكينى 1- اداء النمو
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| Abstract |
A total number of 240 Pekin ducklings at 3-weeks-old Pekin ducklings were weighed, and divided into 4 groups to investigate the effect of supplementing copper sulfate at levels of 0 , 100 , 300 and 500 mg / kg diet from 3 to 13 weeks of age on some growth performance and carcass traits .The results indicated that all levels of copper sulfate supplementation produced significantly higher body weights of ducklings by about 5.46 to 9.04 % compared to the control at 12 weeks of age , but the improvement of body weights at 6 and 9 weeks of age were not significantly affected . Body weight gain of ducklings was significantly improved at periods 6– 9 , 9–12 and 3–12 weeks of age in the groups fed diets supplemented with 300 and 500 mg CuSO4/ kg diet compared to the control . Feed consumption ( g /duck / 21 days) was significantly decreased due to treatment by 7.9 – 8.5 % compared to the control only during the period 3 – 6 wks of age, while it was not affected at the other experimental periods . Feed conversion ( g feed / g BW gain ) was significantly improved due to treatment at different periods except the periods 3-6 and 9-12 wks of age in the groups fed diets supplemented with 100 mg CuSO4 kg .Blood serum parameters of male or female ducklings were significantly affected by supplementation of copper sulfate to the diets .Total cholesterol in female ducklings was significantly decreased by supplementing 100 mg CuSO4 /kg diet, while significantly increased by supplementing 500 mg Cuso4 / kg diet. Serum HDL cholesterol was significantly increased in male and female ducklings with supplementing 300 mg CuSO4/ kg diet .Serum triglycerides were significantly decreased in female ducklings with all levels of copper sulfate supplementation, and in male ducklings with supplementing 300 mg CuSO4 / kg diet only . Serum total protein was significantly increased with supplementing 100 and 300 mg CuSO4 / kg diet in female ducklings . Serum GOT and GPT in male ducklings were significantly increased with supplementing 100 and 500 mg CuSO4/ kg diet , while , significantly decreased with supplementing 100 and 300 mg CuSO4/ kg diet in female ducklings . Carcass traits were not significantly affected by treatment. The edible parts and dressed carcass percentages were improved, while abdominal fat was decreased by about 22.7 % by using 500 mg CuSO4 / kg diet compared to the control .Chemical analyses of carcasses meat were not significantly affected by treatment, however dry matter ,ether extract and ash were numerically decreased and total moisture and protein were increased by increasing copper sulfate levels . These results indicated that copper sulfate could be supplemented to starter and grower duck diets up to 500 mg / kg without any adverse effects on their growth performance. and it may reduced abdominal fat and improved dressed carcass and edible parts percentages.
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| Publication year |
2007
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| Pages |
1223-1237
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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 |
Animal Production Research Institute (APRI)
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| City |
الاسكندرية
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| serial title |
Egyptian Poultry Science Journal
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| ISSN |
1110-5623
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| Author(s) from ARC |
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| Agris Categories |
Animal physiology - Nutrition
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AGROVOC
TERMS |
Carcass composition.
Cholesterol.
Ducks.
Females.
Males.
Performance testing.
Triglycerides.
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| Proposed Agrovoc |
copper sulfate;Blood serum parameters;
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| Publication Type |
Journal
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