The effect of the additive containing Artichoke extract (APC) on growth performance, blood cholesterol level, carcass characteristics and immune system of broiler chickens

Subject Areas : Veterinary Clinical Pathology

farang Rouzmehr ¹ , ardeshir mohit ² , mahmoud KoshSekeh ³ , mohammad hassanzade ⁴

1 - دانشگاه علوم کشاورزی، دانشکده کشاورزی، دانشجوی دوره دکتری، ساری، ایران.
2 - دانشگاه گیلان، دانشکده کشاورزی، استادیار گروه علوم دامی، گیلان، ایران.
3 - دانشگاه آزاد اسلامی، واحد کرج، دانش آموخته دانشکده دامپزشکی، کرج، ایران.
4 - دانشگاه تهران، دانشکده دامپزشکی، استاد گروه بیماری‌های طیور، تهران، ایران.

Received: 2013-07-30 Accepted : 2014-06-24 Published : 2014-05-22

Keywords: broiler chicks, Cholesterol, growth rate, Artichoke extract, Carcase characteristics,

Abstract :

   In order to investigate the effect of different levels of the additive containing Artichoke premix concentrated (APC) on growth performance, serum cholesterol level, carcass characteristics and immune responses of broilers two separate trials were conducted. In the first trial, APC was added at three levels of 0, 100 and 200 gr/ton diet during the first 21 days of growing period. One hundred and fifty unsexed day old broiler chickens of Ross strain were randomly divided in three groups with 5 replicate of 10 chicks in each cage, by a completely randomized design. At the end of each week, the birds were weighed individually and feed conversion ratios calculated. In order to determine serum cholesterol level, at day 21 blood sample was taken from 15 chickens per treatment. At the end of the 42nd day, 5 birds from each group were randomly selected and slaughtered for investigation of carcass characteristics. In the second trial, the effects of APC at 150gr/ton feed were studied on growth parameters and immune function of broiler chickens in a commercial farm. The results showed that application of APC in a level of 200 gr/ton diet significantly increased body weight of chickens at the first (p<0.01) and sixth weeks (p<0.05) of age. Feed conversion ratio was improved significantly during the 0-7 (p<0.01), 0-21 (p<0.05) and 0-42 (p<0.01) days. The blood cholesterol level significantly (p<0.01) decreased in group of chickens that were fed APC in the diet when compared with the control birds. The carcass characteristics showed a significant increase (p<0.01) in average live weight, carcass weight, thigh and breast weights of Arc fed birds compared with the control birds, as treatment with APC significantly decreased abdominal fat of treated birds (p<0.05). On the other hand in the commercial farm conditions, APC cause improved growth performance and immune responses of broiler chickens but such improvements were not significant.

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