ドジヨウ卵の孵化に及ぼす孵化用水の水素イオン濃度の影響に就いて

久保田 善二郎

doi:10.2331/suisan.16.12_151

On the Influence of PII of Hatching Water in the Hatching of Loaches' Eggs

Zenziro KUBOTA

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JOURNAL FREE ACCESS

1951 Volume 16 Issue 12 Pages 151-154

DOI https://doi.org/10.2331/suisan.16.12_151

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Published: November 15, 1951 Received: - Available on J-STAGE: February 29, 2008 Accepted: - Advance online publication: - Revised: -
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Date of correction: February 29, 2008 Reason for correction: - Correction: ABSTRACT Details: Wrong : The writer have studied on hatching rate of Ioaches' eggs putting them into the water with various degrees of PH controlled by HCL or NaOH
The optimum PH for hatching was found to exist between 6.0 and 7.2 the hatching rate was much higher in the acid water than in the alkaline. The range of PH for hatching lied between 3.8 to 10.0
In the course of experiment the rates of died eggs after fartilization to total died eggs were observed as follows:
In the lst experiment. 0-3 hours after fertilization……acid side was larger than alkaline side; 3-7 hours after fertilization……alkaline side was larger than acid side; 7-18 hours after fer tilization……acid side was larger than alkaline side.
In the 2nd experiment. 0-4.5 hours after fertilization……acid side was larger than alkaline side; 4.5-8 hours after fertilization……alkaline side was larger than acid side; 8-19 hours after fertilization……acid side was larger than alkaline side.
Malformed fishes were found only in both strong acid and alkaline waters.
Right : The writer have studied on hatching rate of Ioaches' eggs putting them into the water with various degrees of PH controlled by HCL or NaOH
The optimum PH for hatching was found to exist between 6.0 and 7.2 the hatching rate was much higher in the acid water than in the alkaline. The range of PH for hatching lied between 3.8 to 10.0
In the course of experiment the rates of died eggs after fartilization to total died eggs were observed as follows:
In the 1st experiment. 0-3 hours after fertilization……acid side was larger than alkaline side; 3-7 hours after fertilization……alkaline side was larger than acid side; 7-18 hours after fer tilization……acid side was larger than alkaline side.
In the 2nd experiment. 0-4.5 hours after fertilization……acid side was larger than alkaline side; 4.5-8 hours after fertilization……alkaline side was larger than acid side; 8-19 hours after fertilization……acid side was larger than alkaline side.
Malformed fishes were found only in both strong acid and alkaline waters.

Date of correction: February 29, 2008 Reason for correction: - Correction: CITATION Details: [in Japanese]

Date of correction: February 29, 2008 Reason for correction: - Correction: PDF FILE Details: -

Abstract

The writer have studied on hatching rate of Ioaches' eggs putting them into the water with various degrees of PH controlled by HCL or NaOH
The optimum PH for hatching was found to exist between 6.0 and 7.2 the hatching rate was much higher in the acid water than in the alkaline. The range of PH for hatching lied between 3.8 to 10.0
In the course of experiment the rates of died eggs after fartilization to total died eggs were observed as follows:
In the 1st experiment. 0-3 hours after fertilization……acid side was larger than alkaline side; 3-7 hours after fertilization……alkaline side was larger than acid side; 7-18 hours after fer tilization……acid side was larger than alkaline side.
In the 2nd experiment. 0-4.5 hours after fertilization……acid side was larger than alkaline side; 4.5-8 hours after fertilization……alkaline side was larger than acid side; 8-19 hours after fertilization……acid side was larger than alkaline side.
Malformed fishes were found only in both strong acid and alkaline waters.

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