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Effect of high concentrations of dietary vitamin e during various age periods on performance, plasma vitamin e and meat stability of broiler chicks at 7 weeks of age
Year:
1992
Source of publication :
British Poultry Science
Authors :
Bartov, Ido
;
.
Volume :
33
Co-Authors:
Bartov, I., Department of Poultry Science, Agricultural Research Organisation, The Volcani Center, P.O.B. 6, Bet Dagan, 50250, Israel
Frigg, M., Department VM/A, F. Hoffman- La Roche Ltd, CH-4002, Basel, Switzerland
Facilitators :
From page:
393
To page:
402
(
Total pages:
10
)
Abstract:
1. The effect of high concentrations of vitamin E (a- tocopheryl acetate) fed during various age periods on the performance and the oxidative stability (thiobarbituric acid [TBA] values) of the drumstick meat of 7-week-old broiler chicks was determined. The basal diets (for the age periods 0 to 3, 3 to 6 and 6 to 7 weeks) contained 60 g soyabean oil and 24 mg vitamin E/kg. The following five treatments were evaluated: (1) the basal diets from 0 to 7 weeks of age (control); (2) vitamin E, 100 mg/kg diet from 0 to 7 weeks of age; (3) vitamin E, 150 mg/kg diet from 0 to 3 weeks of age; (4) vitamin E, 150 mg/kg diet from 0 to 3 weeks of age and 100 mg/kg diet from 6 to 7 weeks of age; (5) vitamin E, 100 mg/kg diet from 5 to 7 weeks of age. 2. Food intake, weight gain and food efficiency were not significantly (P0-05) affected by the vitamin E treatments. 3. Plasma a-tocopherol (AT) concentrations in treatments 2, 4 and 5 were similar, and markedly higher than those in treatments 1 and 3, while those of treatment 3 were significantly (P0-001) higher than those of treatment 1. Plasma retinal concentrations were not significantly (P0-05) affected by the vitamin E treatments. 4. TBA values of the meat were very low and not significantly affected by the vitamin E treatments. However, after incubation the TBA values were highly significantly (PCO-OI) negatively correlated with the amount of vitamin E consumed during the experiment. The stability of meat of birds fed the various combinations of vitamin E (treatments 3, 4 and 5) was significantly (P0-05) higher than that of birds which did not receive additional vitamin E (treatment 1), but it was significantly (P0-001) lower than that of birds which received vitamin E continuously (treatment 2). 5. It is concluded that a high concentration of vitamin E fed during 0 to 3 weeks of age may significantly improve AT status of the broiler chick up to 7 weeks of age. © 1992, Taylor & Francis Group, LLC. All rights reserved.
Note:
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More details
DOI :
10.1080/00071669208417477
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
24228
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:06
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Scientific Publication
Effect of high concentrations of dietary vitamin e during various age periods on performance, plasma vitamin e and meat stability of broiler chicks at 7 weeks of age
33
Bartov, I., Department of Poultry Science, Agricultural Research Organisation, The Volcani Center, P.O.B. 6, Bet Dagan, 50250, Israel
Frigg, M., Department VM/A, F. Hoffman- La Roche Ltd, CH-4002, Basel, Switzerland
Effect of high concentrations of dietary vitamin e during various age periods on performance, plasma vitamin e and meat stability of broiler chicks at 7 weeks of age
1. The effect of high concentrations of vitamin E (a- tocopheryl acetate) fed during various age periods on the performance and the oxidative stability (thiobarbituric acid [TBA] values) of the drumstick meat of 7-week-old broiler chicks was determined. The basal diets (for the age periods 0 to 3, 3 to 6 and 6 to 7 weeks) contained 60 g soyabean oil and 24 mg vitamin E/kg. The following five treatments were evaluated: (1) the basal diets from 0 to 7 weeks of age (control); (2) vitamin E, 100 mg/kg diet from 0 to 7 weeks of age; (3) vitamin E, 150 mg/kg diet from 0 to 3 weeks of age; (4) vitamin E, 150 mg/kg diet from 0 to 3 weeks of age and 100 mg/kg diet from 6 to 7 weeks of age; (5) vitamin E, 100 mg/kg diet from 5 to 7 weeks of age. 2. Food intake, weight gain and food efficiency were not significantly (P0-05) affected by the vitamin E treatments. 3. Plasma a-tocopherol (AT) concentrations in treatments 2, 4 and 5 were similar, and markedly higher than those in treatments 1 and 3, while those of treatment 3 were significantly (P0-001) higher than those of treatment 1. Plasma retinal concentrations were not significantly (P0-05) affected by the vitamin E treatments. 4. TBA values of the meat were very low and not significantly affected by the vitamin E treatments. However, after incubation the TBA values were highly significantly (PCO-OI) negatively correlated with the amount of vitamin E consumed during the experiment. The stability of meat of birds fed the various combinations of vitamin E (treatments 3, 4 and 5) was significantly (P0-05) higher than that of birds which did not receive additional vitamin E (treatment 1), but it was significantly (P0-001) lower than that of birds which received vitamin E continuously (treatment 2). 5. It is concluded that a high concentration of vitamin E fed during 0 to 3 weeks of age may significantly improve AT status of the broiler chick up to 7 weeks of age. © 1992, Taylor & Francis Group, LLC. All rights reserved.
Scientific Publication
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