火鸡蛋壳膜中的钙和可溶性胶原蛋白水平。

Levels of calcium and soluble collagen in turkey egg shell membranes.

Robel E J

U.S. Department of Agriculture, Avian Physiology Laboratory, Beltsville, Maryland 20705.

Comp Biochem Physiol A Comp Physiol. 1988;90(3):421-4. doi: 10.1016/0300-9629(88)90212-5.

Abstract

This experiment examined the effect of weeks in egg production and type of housing confinement of turkey hens on calcium and soluble collagen levels in egg shell membranes; and discussion was given to their apparent relationship to gas exchange in turkey eggs. 2. The high level of acid-soluble collagen in inner and outer egg shell membranes of aging caged hens compared with the same aged floor-penned hens may have a relationship with the low hatchability generally recognized in caged hens. 3. The levels of calcium found in the outer shell membrane are low and appeared to decrease with the age of the hen. 4. There were no differences over time in levels of total collagen and neutral salt-soluble collagen (newly formed collagen) found in egg shell membranes of turkey hens confined in cages or floor pens. 5. It is suggested that the acid-soluble collagen levels found in inner shell membranes may have a relationship in limiting respiratory gas exchange during latter incubation time, and thus limit embryo survival.

摘要

本实验研究了蛋鸡产蛋周数和饲养方式对火鸡蛋壳膜中钙和可溶性胶原蛋白水平的影响，并探讨了它们与火鸡蛋气体交换的明显关系。2. 与同龄平养母鸡相比，笼养老龄母鸡内外蛋壳膜中酸溶性胶原蛋白水平较高，这可能与笼养母鸡普遍孵化率低有关。3. 外壳膜中的钙含量较低，且似乎随着母鸡年龄的增长而降低。4. 笼养或平养火鸡蛋壳膜中总胶原蛋白和中性盐溶性胶原蛋白（新形成的胶原蛋白）水平随时间无差异。5. 研究表明，内壳膜中发现的酸溶性胶原蛋白水平可能与后期孵化期间限制呼吸气体交换有关，从而限制胚胎存活。