Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s11250-014-0617-2 |
Upgrade of egg quality through different heat-combating systems during high environmental temperature | |
Anjum, Muhammad Safdar1; Sandhu, Mansur Abdullah1,3; Mukhtar, Nasir1; Rahman, Zia-ur2 | |
通讯作者 | Sandhu, Mansur Abdullah |
来源期刊 | TROPICAL ANIMAL HEALTH AND PRODUCTION
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ISSN | 0049-4747 |
EISSN | 1573-7438 |
出版年 | 2014 |
卷号 | 46期号:7页码:1135-1140 |
英文摘要 | The aim of the study was to find out the effect of various heat-combating systems (HCS) on the egg quality characteristics of commercial laying hens during high environmental temperature of the year. Three hundred pullets were wing banded and randomly divided into 15 experimental units comprising of 20 pullets each. These units were randomly allotted to five treatment groups, replicated thrice according to four heat-combating systems (desert cooling, water sprinkling, time limit feeding, ascorbic acid supplementation), and the control was maintained under the same housing system. The mean values of egg weight, eggshell thickness, Haugh unit, thick albumen height, yolk height, and yolk diameter were calculated. The layers kept under the influence of desert cooling produced eggs with more weight and thicker shells than those under other systems. Results of the present study did not show any difference in the shell thickness between water sprinkling and ascorbic acid supplementation as compared to the control group. Haugh unit and yolk index values obtained from the layers kept under various HCS did not significantly differ from those of the control group. All HCS significantly reduced the occurrence of blood spots in the eggs as compared to the control. All the treatments in general markedly reduced the incidence of meat spots in the eggs especially with the supplementation of ascorbic acid being the most effective. Among all of the treatments, the desert cooling system proved to be the best for producing better-quality eggs during hot periods of the year with less humidity. |
英文关键词 | Egg quality Heat stress Heat-combating system Layers Summer |
类型 | Article |
语种 | 英语 |
国家 | Pakistan |
收录类别 | SCI-E |
WOS记录号 | WOS:000342497900005 |
WOS关键词 | WHITE LEGHORN HENS ; LAYING HENS ; VITAMIN-C ; STRESS ; PERFORMANCE ; MEMBRANE |
WOS类目 | Agriculture, Dairy & Animal Science ; Veterinary Sciences |
WOS研究方向 | Agriculture ; Veterinary Sciences |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/185177 |
作者单位 | 1.PMAS Arid Agr Univ, Fac Vet & Anim Sci, Rawalpindi 46300, Pakistan; 2.Univ Agr Faisalabad, Sch Poultry Sci, Faisalabad, Pakistan; 3.PMAS Arid Agr Univ, Fac Vet & Anim Sci, Dept Vet Biomed Sci, Rawalpindi 46300, Pakistan |
推荐引用方式 GB/T 7714 | Anjum, Muhammad Safdar,Sandhu, Mansur Abdullah,Mukhtar, Nasir,et al. Upgrade of egg quality through different heat-combating systems during high environmental temperature[J],2014,46(7):1135-1140. |
APA | Anjum, Muhammad Safdar,Sandhu, Mansur Abdullah,Mukhtar, Nasir,&Rahman, Zia-ur.(2014).Upgrade of egg quality through different heat-combating systems during high environmental temperature.TROPICAL ANIMAL HEALTH AND PRODUCTION,46(7),1135-1140. |
MLA | Anjum, Muhammad Safdar,et al."Upgrade of egg quality through different heat-combating systems during high environmental temperature".TROPICAL ANIMAL HEALTH AND PRODUCTION 46.7(2014):1135-1140. |
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