تأثير العمر و فترة الموسم (التجميع الحراري) على وقت و نسبة الاستجابة لأمات أسماك الكارب الشائع Cyprinus Carpio L. 1758 في مفاقس الاسماك
Other Title(s)
Effect of fishes age and season period (heat summation) on the ratio and duration of maternal response of spawners of common carp cyprinus Carpio L. in fish hatcheries
Joint Authors
طه ياسين فرحان
التوبي، حسن عويد فزاع
خليل إبراهيم صالح
Source
Issue
Vol. 7, Issue 4 (31 Dec. 2019), pp.68-77, 10 p.
Publisher
Al-Muthanna University Agriculture College
Publication Date
2019-12-31
Country of Publication
Iraq
No. of Pages
10
Main Subjects
Topics
Abstract EN
This study was conducted to investigate the effect of spawners age and heat summation of common carp females.
Heat summation were measured on 1/1/2016.
The experiment started in the first stage in 16 / 3 / 2016 and it finished in the last stage in 13 / 5 / 2016.
The fishes were divided into three age groups for each group of artificial multiplication.
The results of study showed that the heat summation and spawners age revealed the significant effect (P<0.05) on fish.
The temperature affected on the ratio and duration of spawners response to hormonal injection and the required time for the fish responding to injection decreased gradually with elevation of temperatures.
The lowest heat summation in first group the experiment was about (784 degree / day), the fish took the responding time (13.03, 12.
3 and 12.01) hour for smallest aging spawners < 3 years, (3-4 years) and (than> 4 years) respectively and the significant superiority for largest and medium groups.
In the last experiment in heat summation (1886 degree / day) and responding time (8.03, 8.04 and 8.30) hour for spawners respectively response, the ratio of responding were in first experiment (100% , 85.7% , 75% ) a large then medium then smallest age, when last experiment which(92% , 75% , 83% ) smallest then medium then largest.
We conclude that with the high values of heat summation, old spawners were the best at the beginning of the season.
Small-aged spawners were the best at the end of the season, and middle-aged spawners hadn't changed significantly.
American Psychological Association (APA)
طه ياسين فرحان وخليل إبراهيم صالح والتوبي، حسن عويد فزاع. 2019. تأثير العمر و فترة الموسم (التجميع الحراري) على وقت و نسبة الاستجابة لأمات أسماك الكارب الشائع Cyprinus Carpio L. 1758 في مفاقس الاسماك. مجلة المثنى للعلوم الزراعية،مج. 7، ع. 4، ص ص. 68-77.
https://search.emarefa.net/detail/BIM-1111759
Modern Language Association (MLA)
طه ياسين فرحان....[و آخرون]. تأثير العمر و فترة الموسم (التجميع الحراري) على وقت و نسبة الاستجابة لأمات أسماك الكارب الشائع Cyprinus Carpio L. 1758 في مفاقس الاسماك. مجلة المثنى للعلوم الزراعية مج. 7، ع. 4 (2019)، ص ص. 68-77.
https://search.emarefa.net/detail/BIM-1111759
American Medical Association (AMA)
طه ياسين فرحان وخليل إبراهيم صالح والتوبي، حسن عويد فزاع. تأثير العمر و فترة الموسم (التجميع الحراري) على وقت و نسبة الاستجابة لأمات أسماك الكارب الشائع Cyprinus Carpio L. 1758 في مفاقس الاسماك. مجلة المثنى للعلوم الزراعية. 2019. مج. 7، ع. 4، ص ص. 68-77.
https://search.emarefa.net/detail/BIM-1111759
Data Type
Journal Articles
Language
Arabic
Notes
-
Record ID
BIM-1111759