家珠鸡孵化卵中的呼吸交换

Respiratory exchanges in the incubated egg of the domestic guinea fowl.

作者信息

Ancel A, Visschedijk A H

机构信息

Centre d'Ecologie et Physiologie Energétiques, (ex Laboratoire d'Etude des Régulations Physiologiques), Centre National de la Recherche Scientifique, Strasbourg, France.

出版信息

Respir Physiol. 1993 Jan;91(1):31-42. doi: 10.1016/0034-5687(93)90087-q.

DOI:10.1016/0034-5687(93)90087-q

PMID:8441869

Abstract

The daily O2 uptake (MO2) and CO2 production (MCO2) rates were measured in guinea fowl eggs with a wide range of mass specific shell water vapor conductance, spGH2O [0.108 to 0.365 mg.(g.Torr.day)-1], from day 10 to the end of incubation, day 28. The respiration rate showed a plateau, from day 22 to day 24, typical of a precocial bird: MO2 approximately 21.4 and MCO2 approximately 15.2 mmol.day-1. The plateau MO2 value was that predicted by allometric relation. At the plateau, respiratory exchanges appeared significantly limited by spGH2O. The limiting effect of spGH2O on respiratory metabolism began as soon as day 18 (64% of incubation time). The respiratory ratio was 0.75 at day 10, decreased to 0.65-0.66 on days 12-14 and stabilized at 0.70-0.71 on days 20-28.

摘要

从孵化第10天到孵化结束（第28天），对一系列具有广泛质量比壳水蒸气传导率（spGH2O，范围为0.108至0.365毫克·（克·托·天）-1）的珍珠鸡蛋测量每日氧气摄取率（MO2）和二氧化碳产生率（MCO2）。呼吸率在第22天到第24天出现一个平稳期，这是早成鸟的典型特征：MO2约为21.4，MCO2约为15.2毫摩尔·天-1。平稳期的MO2值是由异速生长关系预测得出的。在平稳期，呼吸交换明显受到spGH2O的限制。spGH2O对呼吸代谢的限制作用在第18天（孵化时间的64%）就开始了。呼吸商在第10天为0.75，在第12至14天降至0.65 - 0.66，并在第20至28天稳定在0.70 - 0.71。