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Technology Research On China Turtle Breeding Without Pollution

Posted on:2008-01-06Degree:MasterType:Thesis
Country:ChinaCandidate:X J WangFull Text:PDF
GTID:2143360245987801Subject:Fisheries
Abstract/Summary:PDF Full Text Request
Based on the traditional breeding and the principle of ecology and systems engineering science,a complete set of more perfect breeding technology for China turtle,comprising traditional natural turtle breeding and modern plant turtle breeding at constant temperature,was studied in this paper.During the course of breeding,matter cycle system in the nature was used,and the breeding technology was investigated via adopting the preventive measures to throw in infant turtle with no epidemic disease,imitate natural entironment,confirm logical breeding density,enhance water quality management and normal production management.This measure realized to keep the zoology balance,reduce the disease,and increase the breeding benefit.Firstly,the infant turtles were hatched by ourselves.In the cource,On the condition of the temperature of 30℃,the humidity of 80%,containing water quantity 5-8%in the sand,the hatching period was shortend to 41 days or so from 60-70 days in natural condition and 50 days in other manual hatching in our country.Secondly,Heating up at both ends in the experiment,that is,to breed infant turtle at a fitting temperature by heating up in the early spring and late autumn.In this course,we protracted the growth period of infant turtle,ensure the turtle grow healthily by regulating bait component,water quality,and humidity,and then increase the survival rate of infant turtle,shorten nurturance period,increase economical benefit.It took about 2 years for a turtle to grow to bionic grown turtle(500g per turtle) from 3-5g infant turtle.The idiographic course includes two phases:breeding at constant temperature in greenhouse and outdoor breeding at normal temperature.At greenhose,the infant turtle grew to 100g per turtle from September to June in next year,when the temperature of the outdoor water reached 25℃or so.Then they are threw in the pool in the air to breed,and finally the average survival rate can reach more than 90%.Outdoor breeding at normal temperature,that is,throwing the young turtle into natural pool in the air from the greenhouse,and after breeding in the summer next year and hibernation,until October in the third year,the grown turtles were caught to come into the market.In this experiment,the average weight was 503g per grown turtle,and the biggest turtle was over 700g.The survival rate of young turtle was more than 85%,and the average unit output was 2.15kg per square meter.In this paper,current research on the breeding of China turtle was discussed at the same time,and a new operating regulation for China turtle without pollution was advanced according to former breeding experience,and a new path was broken in order to pull green breeding mode witout pollution entirely,offer a available approach for effective green aquiculture,develop China turtle breeding healthily,steadily,continuably.
Keywords/Search Tags:China turtle, breeding without pollution, heating up at both ends, bionic grown turtle
PDF Full Text Request
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