Effects of feeding strategies on eggshell quality of laying hens during late laying period
ABSTRACT: Insufficient calcium supply during the dark period is an important reason for deteriorated eggshell quality in laying hens. In the present study, the feeding time of hens was altered in order to investigate whether the changes in feeding time and feed consumption could influence the laying...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-02-01
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| Series: | Poultry Science |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0032579122007003 |
| _version_ | 1811175494732742656 |
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| author | Yu Liu Victoria Anthony Uyanga Hongchao Jiao Xiaojuan Wang Jingpeng Zhao Yunlei Zhou Hai Lin |
| author_facet | Yu Liu Victoria Anthony Uyanga Hongchao Jiao Xiaojuan Wang Jingpeng Zhao Yunlei Zhou Hai Lin |
| author_sort | Yu Liu |
| collection | DOAJ |
| description | ABSTRACT: Insufficient calcium supply during the dark period is an important reason for deteriorated eggshell quality in laying hens. In the present study, the feeding time of hens was altered in order to investigate whether the changes in feeding time and feed consumption could influence the laying performance and eggshell quality of hens. A total of 192, 60-wk-old Hy-line Brown hens with similar body weight and laying rate were obtained. The hens were randomly divided into 4 groups and subjected to the following feeding strategies: feeding 3 times a day (control group, CON), or feeding once a day in the morning at 08:00 (MF), in the noon at 12:00 (NF), or in the afternoon at 16:00 (AF), respectively. The feeding strategies had no significant effect (P > 0.05) on laying rate, egg weight, and egg mass. Although the feed intake did not differ among treatments, the time phase of feed consumption was changed. From 15:00 to 21:00 h, hens consumed 49.7%, 42.4%, 49.1%, and 70.8% of daily feed intake in the CON, MF, NF, and AF groups, respectively. Feeding strategy had no detectable influence (P > 0.05) on egg shape index, eggshell strength, and eggshell percentage. Compared to CON, AF hens tended to have a higher eggshell thickness (P = 0.053). In MF and NF treatments, plasma calcium (Ca), phosphorus (P) levels, and alkaline phosphatase (ALP) activity did not differ (P > 0.05) compared with CON. In contrast, AF-hens had lower Ca and P levels, but a higher ALP activity than CON (P < 0.01). The AF hens had higher uterine fluid Ca than MF and NF hens (P < 0.05). Compared to CON, the expression level of CaBP-D28K was increased in the shell gland mucosa of MF-hens. Also, MF-, NF-, and AF-hens had higher Osteopontin (OPN) expression level (P < 0.05), whereas NF had a higher expression of OC-116 (P < 0.01). In conclusion, the results indicated that feeding in the afternoon changed the pattern of feed consumption and exerted a positive influence on eggshell thickness. |
| first_indexed | 2024-04-10T19:37:59Z |
| format | Article |
| id | doaj.art-b64757ba63a846eab4fdb431d7f7ea2a |
| institution | Directory Open Access Journal |
| issn | 0032-5791 |
| language | English |
| last_indexed | 2024-04-10T19:37:59Z |
| publishDate | 2023-02-01 |
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| series | Poultry Science |
| spelling | doaj.art-b64757ba63a846eab4fdb431d7f7ea2a2023-01-30T04:11:39ZengElsevierPoultry Science0032-57912023-02-011022102406Effects of feeding strategies on eggshell quality of laying hens during late laying periodYu Liu0Victoria Anthony Uyanga1Hongchao Jiao2Xiaojuan Wang3Jingpeng Zhao4Yunlei Zhou5Hai Lin6College of Animal Science and Technology, Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Key Laboratory of Efficient Utilization of Non-grain Feed Resources (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Taian, Shandong 271018, ChinaCollege of Animal Science and Technology, Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Key Laboratory of Efficient Utilization of Non-grain Feed Resources (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Taian, Shandong 271018, ChinaCollege of Animal Science and Technology, Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Key Laboratory of Efficient Utilization of Non-grain Feed Resources (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Taian, Shandong 271018, ChinaCollege of Animal Science and Technology, Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Key Laboratory of Efficient Utilization of Non-grain Feed Resources (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Taian, Shandong 271018, ChinaCollege of Animal Science and Technology, Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Key Laboratory of Efficient Utilization of Non-grain Feed Resources (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Taian, Shandong 271018, ChinaCollege of Chemistry and Material Science, Shandong Agricultural University, Taian 271018, ChinaCollege of Animal Science and Technology, Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Key Laboratory of Efficient Utilization of Non-grain Feed Resources (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Taian, Shandong 271018, China; Corresponding author:ABSTRACT: Insufficient calcium supply during the dark period is an important reason for deteriorated eggshell quality in laying hens. In the present study, the feeding time of hens was altered in order to investigate whether the changes in feeding time and feed consumption could influence the laying performance and eggshell quality of hens. A total of 192, 60-wk-old Hy-line Brown hens with similar body weight and laying rate were obtained. The hens were randomly divided into 4 groups and subjected to the following feeding strategies: feeding 3 times a day (control group, CON), or feeding once a day in the morning at 08:00 (MF), in the noon at 12:00 (NF), or in the afternoon at 16:00 (AF), respectively. The feeding strategies had no significant effect (P > 0.05) on laying rate, egg weight, and egg mass. Although the feed intake did not differ among treatments, the time phase of feed consumption was changed. From 15:00 to 21:00 h, hens consumed 49.7%, 42.4%, 49.1%, and 70.8% of daily feed intake in the CON, MF, NF, and AF groups, respectively. Feeding strategy had no detectable influence (P > 0.05) on egg shape index, eggshell strength, and eggshell percentage. Compared to CON, AF hens tended to have a higher eggshell thickness (P = 0.053). In MF and NF treatments, plasma calcium (Ca), phosphorus (P) levels, and alkaline phosphatase (ALP) activity did not differ (P > 0.05) compared with CON. In contrast, AF-hens had lower Ca and P levels, but a higher ALP activity than CON (P < 0.01). The AF hens had higher uterine fluid Ca than MF and NF hens (P < 0.05). Compared to CON, the expression level of CaBP-D28K was increased in the shell gland mucosa of MF-hens. Also, MF-, NF-, and AF-hens had higher Osteopontin (OPN) expression level (P < 0.05), whereas NF had a higher expression of OC-116 (P < 0.01). In conclusion, the results indicated that feeding in the afternoon changed the pattern of feed consumption and exerted a positive influence on eggshell thickness.http://www.sciencedirect.com/science/article/pii/S0032579122007003laying hensfeeding strategyeggshell qualitycalciumuterine fluid |
| spellingShingle | Yu Liu Victoria Anthony Uyanga Hongchao Jiao Xiaojuan Wang Jingpeng Zhao Yunlei Zhou Hai Lin Effects of feeding strategies on eggshell quality of laying hens during late laying period Poultry Science laying hens feeding strategy eggshell quality calcium uterine fluid |
| title | Effects of feeding strategies on eggshell quality of laying hens during late laying period |
| title_full | Effects of feeding strategies on eggshell quality of laying hens during late laying period |
| title_fullStr | Effects of feeding strategies on eggshell quality of laying hens during late laying period |
| title_full_unstemmed | Effects of feeding strategies on eggshell quality of laying hens during late laying period |
| title_short | Effects of feeding strategies on eggshell quality of laying hens during late laying period |
| title_sort | effects of feeding strategies on eggshell quality of laying hens during late laying period |
| topic | laying hens feeding strategy eggshell quality calcium uterine fluid |
| url | http://www.sciencedirect.com/science/article/pii/S0032579122007003 |
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