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Effects of dietary combination of chromium and biotin on egg production, serum metabolites, and egg yolk mineral and cholesterol concentrations in heat-distressed laying quails.
Biol Trace Elem Res. 2004 Nov; 101(2):181-92.BT

Abstract

Chromium picolinate is used in the poultry diet because of its antistress effects in addition to the fact that the requirement for it is increased during stress. This study was conducted to determine if the negative effects of high ambient temperature (34 degrees C) on egg production, egg quality, antioxidant status, and cholesterol and mineral content of egg yolk could be alleviated by combination of chromium picolinate and biotin (0.6/2.0; Diachrome, as formulated by Nutrition 21 Inc.), in laying Japanese quails (Coturnix coturnix japanica). Quails (n= 240; 50 d old) were divided into 8 groups, 30 birds per group. The quails were fed either a basal diet or the basal diet supplemented with 2, 4, or 8 mg of Diachrome/kg diet. Birds were kept at 22 degrees C and 53% relative humidity (RH). At 14 wk of age, the thermoneutral (TN) group remained in the same temperature as at the beginning of experiment, whereas the heat stress (HS) group was kept in an environment-controlled room (34 degrees C and 41% RH) for 3 wk. Heat exposure decreased performance when the basal diet was fed (p = 0.001). Diachrome supplementation at 4 and 8 mg/kg diet, increased feed intake (p = 0.05), egg production (p = 0.05), feed efficiency (p = 0.01), egg weight (p = 0.05), and Haugh unit (p = 0.01) in quails reared under heat stress conditions. Heat exposure increased concentrations of serum malondialdehyde (MDA) (p = 0.001), glucose, and cholesterol (p = 0.01), which were elevated by supplemental Diachrome (p < or = 0.05). Egg yolk Cr, Zn, and Fe (p = 0.01) concentrations increased linearly, whereas MDA and cholesterol concentrations decreased (p = 0.05) as dietary Diachrome supplementation increased in HS groups. Similar effects of supplementation on serum levels of glucose and cholesterol (p = 0.05) and egg yolk concentrations of cholesterol (p = 0.05) and Cr (p = 0.01) were observed in TN groups. No significant differences in other values were observed in the TN groups. Results of the present study suggest that supplementation with Diachrome protects the quail by reducing the negative effects of heat stress.

Authors+Show Affiliations

Department of Animal Nutrition, Faculty of Veterinary Sciencee, Firat University, Elazig, Turkey.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

15557680

Citation

Sahin, K, et al. "Effects of Dietary Combination of Chromium and Biotin On Egg Production, Serum Metabolites, and Egg Yolk Mineral and Cholesterol Concentrations in Heat-distressed Laying Quails." Biological Trace Element Research, vol. 101, no. 2, 2004, pp. 181-92.
Sahin K, Onderci M, Sahin N, et al. Effects of dietary combination of chromium and biotin on egg production, serum metabolites, and egg yolk mineral and cholesterol concentrations in heat-distressed laying quails. Biol Trace Elem Res. 2004;101(2):181-92.
Sahin, K., Onderci, M., Sahin, N., Gursu, M. F., Vijaya, J., & Kucuk, O. (2004). Effects of dietary combination of chromium and biotin on egg production, serum metabolites, and egg yolk mineral and cholesterol concentrations in heat-distressed laying quails. Biological Trace Element Research, 101(2), 181-92.
Sahin K, et al. Effects of Dietary Combination of Chromium and Biotin On Egg Production, Serum Metabolites, and Egg Yolk Mineral and Cholesterol Concentrations in Heat-distressed Laying Quails. Biol Trace Elem Res. 2004;101(2):181-92. PubMed PMID: 15557680.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of dietary combination of chromium and biotin on egg production, serum metabolites, and egg yolk mineral and cholesterol concentrations in heat-distressed laying quails. AU - Sahin,K, AU - Onderci,M, AU - Sahin,N, AU - Gursu,M F, AU - Vijaya,J, AU - Kucuk,O, PY - 2004/01/05/received PY - 2004/03/03/accepted PY - 2004/11/24/pubmed PY - 2005/4/22/medline PY - 2004/11/24/entrez SP - 181 EP - 92 JF - Biological trace element research JO - Biol Trace Elem Res VL - 101 IS - 2 N2 - Chromium picolinate is used in the poultry diet because of its antistress effects in addition to the fact that the requirement for it is increased during stress. This study was conducted to determine if the negative effects of high ambient temperature (34 degrees C) on egg production, egg quality, antioxidant status, and cholesterol and mineral content of egg yolk could be alleviated by combination of chromium picolinate and biotin (0.6/2.0; Diachrome, as formulated by Nutrition 21 Inc.), in laying Japanese quails (Coturnix coturnix japanica). Quails (n= 240; 50 d old) were divided into 8 groups, 30 birds per group. The quails were fed either a basal diet or the basal diet supplemented with 2, 4, or 8 mg of Diachrome/kg diet. Birds were kept at 22 degrees C and 53% relative humidity (RH). At 14 wk of age, the thermoneutral (TN) group remained in the same temperature as at the beginning of experiment, whereas the heat stress (HS) group was kept in an environment-controlled room (34 degrees C and 41% RH) for 3 wk. Heat exposure decreased performance when the basal diet was fed (p = 0.001). Diachrome supplementation at 4 and 8 mg/kg diet, increased feed intake (p = 0.05), egg production (p = 0.05), feed efficiency (p = 0.01), egg weight (p = 0.05), and Haugh unit (p = 0.01) in quails reared under heat stress conditions. Heat exposure increased concentrations of serum malondialdehyde (MDA) (p = 0.001), glucose, and cholesterol (p = 0.01), which were elevated by supplemental Diachrome (p < or = 0.05). Egg yolk Cr, Zn, and Fe (p = 0.01) concentrations increased linearly, whereas MDA and cholesterol concentrations decreased (p = 0.05) as dietary Diachrome supplementation increased in HS groups. Similar effects of supplementation on serum levels of glucose and cholesterol (p = 0.05) and egg yolk concentrations of cholesterol (p = 0.05) and Cr (p = 0.01) were observed in TN groups. No significant differences in other values were observed in the TN groups. Results of the present study suggest that supplementation with Diachrome protects the quail by reducing the negative effects of heat stress. SN - 0163-4984 UR - https://www.unboundmedicine.com/medline/citation/15557680/Effects_of_dietary_combination_of_chromium_and_biotin_on_egg_production_serum_metabolites_and_egg_yolk_mineral_and_cholesterol_concentrations_in_heat_distressed_laying_quails_ L2 - https://dx.doi.org/10.1385/BTER:101:2:181 DB - PRIME DP - Unbound Medicine ER -