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Study on royal jelly in poultry feeding: 1- effect of royal jelly type on the performance of laying hens at the end of production season [electronic resouce].

By:

Hammad, A. M. S

Contributor(s):

Royal jelly

Language: English Summary language: Arabic Description: p.1-15Other title:

دراسة علي استخدام الغذاء الملكي في تغذية الدواجن 1- تأثير نوع الغذاء الملكي علي أداء الدجاج البياض في نهاية موسم الإنتاج [Added title page title]

Uniform titles:

Egyptian poultry science journal, 2006 v. 26 (I) [electronic resouce].

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Online resources:

Full Text Article.

In: Egyptian poultry science journal 2006.v.26(I)Summary: A total of 85 hens, 44 wks old, ISA brown were randomly assigned to five treatment groups (T1 to T5) and housed in six cages per treatment until 60 wks of age. Diet was formulated to have 17% CP and 2903 Kcal ME/kg. Lyophilized royal jelly (RJ) was given either in the diet (T2) at the level of 60 mg/kg diet or in drinking water (T3) at the level of 7 mg/hen/day. Frozen RJ from Egypt (T4) and China (T5) were given in drinking water at the level of 21 mg/hen/day. Control group (T1) fed the previous diet without any addition. All RJ treatments increased body weight. Eggs laid per hen were significantly (P<0.05) increased by 3.25, 3.31 and 3.57% with T2, T3 and T5 groups, respectively. Average egg weight was significantly (P<0.05) increased by 2.50% in T2 group, while decreased by 2.27 and 1.66% in T3 and T4 groups, respectively. Feed intake significantly (P<0.05) decreased by 2.25, 1.30 and 5.16% in groups received T2, T3 and T5 treatments, respectively. Feed conversion ratio was improved by 6.82, 1.82 and 8.64% with T2, T3 and T5 groups, respectively. On the other hand, feed conversion ratio of T4 group was the worst. Digestibility of CP was increased, while digestibility of EE was significantly (P<0.05) decreased by 12.49, 15.57 and 14.84% when birds received T2, T3 and T4 treatments, respectively. Digestibility of CF was significantly (P<0.05) decreased by 64.76, 61.74, 63.06 and 70.64% when birds received T2, T3, T4 and T5 treatments, respectively. ME value was significantly (P<0.05) increased by 3.68% with T5 treatment. RJ treatment in T2, T3 and T5 groups increased money return per house by 11.28, 7.00 and 18.68%, respectively. In conclusion, lyophilized RJ in diet at 60 mg/kg or drinking water at the level of 7 mg/hen/day, or Chinese frozen RJ in drinking water at the level of 21 mg/hen/day improved productive performance, body gain, CP digestibility, ME value, and economical efficiency of feed. However, Egyptian frozen RJ showed a dramatic effect on most of the measured traits.

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A total of 85 hens, 44 wks old, ISA brown were randomly assigned to five treatment groups (T1 to T5) and housed in six cages per treatment until 60 wks of age. Diet was formulated to have 17% CP and 2903 Kcal ME/kg. Lyophilized royal jelly (RJ) was given either in the diet (T2) at the level of 60 mg/kg diet or in drinking water (T3) at the level of 7 mg/hen/day. Frozen RJ from Egypt (T4) and China (T5) were given in drinking water at the level of 21 mg/hen/day. Control group (T1) fed the previous diet without any addition. All RJ treatments increased body weight. Eggs laid per hen were significantly (P<0.05) increased by 3.25, 3.31 and 3.57% with T2, T3 and T5 groups, respectively. Average egg weight was significantly (P<0.05) increased by 2.50% in T2 group, while decreased by 2.27 and 1.66% in T3 and T4 groups, respectively. Feed intake significantly (P<0.05) decreased by 2.25, 1.30 and 5.16% in groups received T2, T3 and T5 treatments, respectively. Feed conversion ratio was improved by 6.82, 1.82 and 8.64% with T2, T3 and T5 groups, respectively. On the other hand, feed conversion ratio of T4 group was the worst. Digestibility of CP was increased, while digestibility of EE was significantly (P<0.05) decreased by 12.49, 15.57 and 14.84% when birds received T2, T3 and T4 treatments, respectively. Digestibility of CF was significantly (P<0.05) decreased by 64.76, 61.74, 63.06 and 70.64% when birds received T2, T3, T4 and T5 treatments, respectively. ME value was significantly (P<0.05) increased by 3.68% with T5 treatment. RJ treatment in T2, T3 and T5 groups increased money return per house by 11.28, 7.00 and 18.68%, respectively. In conclusion, lyophilized RJ in diet at 60 mg/kg or drinking water at the level of 7 mg/hen/day, or Chinese frozen RJ in drinking water at the level of 21 mg/hen/day improved productive performance, body gain, CP digestibility, ME value, and economical efficiency of feed. However, Egyptian frozen RJ showed a dramatic effect on most of the measured traits.

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