Publications by authors named "Zhiqiong Mao"
Article Synopsis
- - In China, a large number of spent laying hens, primarily around 100 weeks old, are disposed of each year, with their sale becoming an important source of income for the poultry industry.
- - A study conducted on 90 Rhode Island Red hens highlighted that body weight (preferably 1.5 to 2 kg) significantly influences their market price, while dislocations during slaughter adversely affect carcass quality.
- - The research indicated that dislocations, occurring mainly due to external forces during culling, do not correlate with bone health, emphasizing the need for better handling to improve product quality and farmer profits.
Currently, there is a dearth of in-depth analysis and research on the impact of canthaxanthin on the production performance, egg quality, physical characteristics, and offspring health of laying hens. Furthermore, the metabolic mechanism of cantharidin in the body remains unclear. Therefore, to solve the above issues in detail, our study was conducted with a control group (C group), a low-dose canthaxanthin group (L group), and a high-dose canthaxanthin group (H group), each fed for a period of 40 days.
View Article and Find Full Text PDFBackground: Protoporphyrin IX (Pp IX) is the primary pigment for brown eggshells. However, the regulatory mechanisms directing Pp IX synthesis, transport, and genetic regulation during eggshell calcification in chickens remain obscure. In this study, we investigated the mechanism of brown eggshell formation at different times following oviposition, using White Leghorn hens (WS group), Rhode Island Red light brown eggshell line hens (LBS group) and Rhode Island Red dark brown eggshell line hens (DBS group).
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