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Effect of supplementing diet with Chromium Picolinate on productive, reproductive, physiological performance and immune response of Golden Montazah chickens
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Abstract: This study was carried out to determine the effects of chromium picolinate, (CrPic) supplementation on productive, reproductive and physiological performance as well as immune response in developed strain of chicken. A total number of one hundred and fifty laying hens and twenty five cocks of Golden Montazah local strain at 40 weeks of age were housed individually in single cages in an open system house and randomly distributed into five treatments (30 females and 5 males in each treatment). Birds were fed basal diet of layers. Dietary treatments consisted of the basal diet supplemented with 0 (control), 200, 400, 600 and 800 ug of Cr/kg of diet. All birds received feed and water ad libitum.
Chromium Picolinate (CrPic) was used as Cr source
Results obtained are summarized in the following:
1-Increased dietary chromium picolinate levels resulted in an increase in weight gain (P < 0.05) and did not affect feed consumption of both sexes while, improved feed conversion (P < 0.01) of hens.
2- Inclusion of chromium picolinate significantly (P<0.05) increased egg production %' and egg mass.
3-Egg yolk percentage, and yolk index were significantly increased as dietary chromium . picolinate levels increased.
4- No significant differences were found in external or internal egg quality.
5-Significant (P<0.05) improvements in semen physical properties were observed as affected by supplementing diet with chromium picolinate compared with those of the control treatment.
6- Cr supplementation from Cr picolinate significantly (P<0.05) increased Ejaculate volume, advanced motility and alive sperm (%) compared with control group.
7- Significant (P<0.05) improvements in semen physical properties were observed as affected by supplementing diet with chromium picolinate compared with those of the control treatment.
8- Weight % of ovary, tests and heart of both sexes were significantly (P<0.05) increased compared with those for control group.
9- Serum insulin concentration was increased (P < 0.05), whereas corticosterone concentration was linearly decreased (P < 0.05) as dietary chromium picolinate supplementation increased.
10- Serum glucose and cholesterol concentrations were decreased (P < 0.05) while, protein . concentrations was linearly increased (P < 0.05) when dietary chromium picolinate supplementation increased.
11- Similary, serum phosphorus, calcium and albumin concentration were increased (P < 0.05) while, ALT and AST concentration was linearly decreased (P < 0.05) as dietary chromium picolinate supplementation increased. However, LDL and HDL concentration were insignificantly affected as dietary chromium picblinate levels increased.
12- Antibody response against SRBC (IgG) of G.M laying hens was significantly (P < 0.05) higher in 48 week old G.M laying hens fed 800 ppb Cr compared with control or 200, 400 and 600 ppb treatment groups.
In conclusion, supplementing the chicken diet with 800 ppb chromium picolinate improved most of the previous mentioned productive traits, egg quality, semen quality, fertility and hatchability carcass parameters, blood parameters as well as the immune response
Key Words: Chromium picolinate, productive, reproductive, immune response.
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| Publication year |
2013
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| Pages |
751-767
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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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| City |
المنصورة
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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 - NutritionAnimal physiology - Reproduction
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AGROVOC
TERMS |
Chickens.
Cocks.
Immune response.
Layer chickens.
Reproductive performance.
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| Proposed Agrovoc |
productive;Chromium picolinate;physiological performance;developed strain;
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| Publication Type |
Journal
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