CN102657118B - Method for researching compensatory growth in process of fish-family seed selection - Google Patents
Method for researching compensatory growth in process of fish-family seed selection Download PDFInfo
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- 230000001447 compensatory effect Effects 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 35
- 230000008569 process Effects 0.000 title claims abstract description 16
- 230000000694 effects Effects 0.000 claims abstract description 20
- 238000011160 research Methods 0.000 claims abstract description 10
- 241000251468 Actinopterygii Species 0.000 claims description 36
- 230000037396 body weight Effects 0.000 claims description 33
- 238000009395 breeding Methods 0.000 claims description 16
- 230000001488 breeding effect Effects 0.000 claims description 16
- 210000001015 abdomen Anatomy 0.000 claims description 3
- 241000191442 Tenualosa reevesii Species 0.000 claims description 2
- 238000011156 evaluation Methods 0.000 claims description 2
- 238000010200 validation analysis Methods 0.000 claims description 2
- 238000004458 analytical method Methods 0.000 abstract description 5
- 238000012795 verification Methods 0.000 abstract 1
- 230000004584 weight gain Effects 0.000 abstract 1
- 235000019786 weight gain Nutrition 0.000 abstract 1
- 241001465754 Metazoa Species 0.000 description 6
- 235000016709 nutrition Nutrition 0.000 description 4
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- 241000252233 Cyprinus carpio Species 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 235000010469 Glycine max Nutrition 0.000 description 1
- 244000068988 Glycine max Species 0.000 description 1
- 238000009360 aquaculture Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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Abstract
The invention relates to a method for researching compensatory growth in the process of fish-family seed selection. According to the method disclosed by the invention, researches on a situation whether compensatory growth exists, the compensation degree, the influences of compensatory growth on weight and weight gain, and the like are performed in three aspects such as compensation index hypothesis, YN effect hypothesis, and compensation degree verification. Results show that: the method for researching compensatory growth can be applied to the analysis on the compensation effect in the process of family seed selection, and is significant in effect.
Description
Technical field
The invention belongs to Quantitative Genetics fish breeding technical field, relate in particular to the method for research compensatory growth in a kind of fish family Breeding Process.
Background technology
Compensatory growth is a kind of biological phenomenon that occurring in nature exists, it is biological a kind of result of for adapting to the external environment variation, passing through natural selection, meaning that animal body is after the limiting growth of experience a period of time, is the physiology course of the tachyauxesis carrying out of body weight that reaches the unconstrained animal of growth.Compensatory growth is divided into full compensation, partial-compensation, zero-compensation and 4 kinds of forms of negative compensation usually.Compensatory growth can be weighed by the compensation index.The compensation index refers to that not limit raises the difference of with limit, raising the weight of animals and deduct limit and raise after animal via overcompensation growth poor with the intact animal body weight, and the difference obtained does not account for and limits and raise and the ratio of limitting the difference of raising rear the weight of animals.
On fish breeding, understand the pattern of specific shoal of fish compensatory growth, can be used for having the fish breeding of compensatory growth characteristics, like this can with the flexible combination in market, can, for designing feeding pattern in production practices, reduce costs.In practice, the factor of limiting growth except nutrition, compensatory growth also with temperature, oxygen-supplying amount, salinity, Hormone change, the factors such as the change of density are closely related, yet the research of compensatory growth difference between different familys have not been reported.
So, a kind of method of studying compensatory growth difference between different familys is provided, compensate and analyze and differentiate due to the impact on the fish body weight of the difference of degree of compensation, can provide basis for the popularization of fish, the popularization that continues seed selection and aquaculture model and improvement.
Summary of the invention
The technical problem solved: the object of the invention is to overcome the deficiencies in the prior art, the method for research compensatory growth in a kind of fish family Breeding Process is provided.
Technical scheme: the method adopts compensation index assumption, YN effect hypothesis, and whether compensation level is appraised and decided 3 aspects and studied compensatory growth in family selective breeding and exist, and degree of compensation how, and compensatory growth is on the impact of body weight, weightening finish etc.
Concrete treatment step is as follows:
(1) obtain the weight data of the fish of different vegetative stages in the fish family seed selection: concrete operations are for first carrying out one by one the PIT individual mark to the fish of cultivating 7～15g, with syringe, the less radio-frequency mark is injected to the fish belly chamber, then carry out artificial feeding to the 3 years, body weight while while recording fish from the PIT mark to results, in this time period, being no less than 2 time points
(2) set up 3 hypothesis analyzing for compensatory growth:
Because the definition of compensating effect is usually relevant with Nutrition Restriction, environmental limitations, and, in the family Breeding Process, in order to improve the accuracy of seed selection, these conditions are controlled its uniformity as much as possible, therefore:
First hypothesis of I: the hypothesis of compensation index---the weightlessness of restriction of assumption condition is to be 2 relatively weight poor of familys at the PIT mark, and the correspondence weightlessness of this two family while being defined as results of the weightlessness after compensation.
Second hypothesis of II: the hypothesis of Yes-No effect (YN effect)---97 familys are when carrying out comparing in twos, during the PIT mark, body weight reaches significant difference, and significantly be not defined as these two familys to body weight difference between when results two familys, does not have the YN effect.Therefore, for each family, and other the residue family compare, the not only YN effect of may be arranged.
The 3rd hypothesis of III: compensation level is appraised and decided---and different compensation levels: 97 familys of take are benchmark, with 5%, 10%, 15%, calculate by that analogy criteria for classification, until the categorization levels of calculating is higher than the maximum family coefficient magnitudes that has the YN effect in 97 familys, the YN effect numerical value of class standard and each family of then scoring compares step by step, for specific criteria for classification, when the YN effect lower than criteria for classification, be designated as 0, reach or be greater than this criteria for classification, be designated as 1, so just all familys have been carried out having according to compensation level and nothing or the classification of different degree of compensation,
As a further improvement on the present invention: measure the weight data of 2 time point macrura reevesiis in step (1), while being respectively the PIT mark and when results.
As a further improvement on the present invention: also comprise method validation step (3): i.e. the different family degree of compensation, carry out the impact of body weight and weightening finish by method in step (1) and (2), study the impact of degree of compensation difference on the fish weightening finish, verify the evaluation of the method for described compensatory growth to compensation effect.
Beneficial effect
By this compensatory growth analytical method, can be estimated the degree of compensation of each family, and cause the variation of body weight and weightening finish to be detected to the difference due to degree of compensation, can there be the compensatory growth of different family body weight so clear and definite understanding, the result to show that this analytical method can find out because compensatory growth causes body weight, the family that significantly improves of weightening finish.
This kind of analytical method is applied to the breeding of new variety that fish can be used for having the Overwintering Growth advantage, also can be used for being suitable for the production management of the different vegetative stage fish of the market demand.
The accompanying drawing explanation
The compensation exponential distribution figure of 97 familys of Fig. 1
Embodiment
For the characteristics of family in the fish breeding process, for the Control experiment error, require in whole Breeding Process, the envirment factors such as nutrition are consistent as much as possible.Concrete operation step is as follows:
(1) in family selective breeding, 97 familys of certain generation carp are research object, each family 50 tail fish, when the PIT mark and when results 2 point in time measurement body weight;
The family quantity of getting the same generation is 97, the time point of measuring the weight data of fish is 2 time points: during the PIT mark and during results, concrete operations are as follows: the fish of 97 seed selection familys is isolated in 97 net cages and hatches fry, the fry of different familys is isolated in different net cages and cultivates in early days, early stage water temperature of cultivating is 20 ℃～28 ℃, net cage middle water level height is 70cm～80cm, 1 new water of every first quarter moon filling; 2nd～15 days soya-bean milk of splashing of hatching after fry are fed, and splash every day 2～3 times, with pellet, feed afterwards, throw something and feed every day 2～3 times, and feeding volume is 5%～6% of fry body weight; When fry grows to 7～15g, in each family, respectively select 50 tail fries, with syringe, the less radio-frequency mark is injected to the fish belly chamber, carry out individual mark, thereby identify every tail fry, and body weight while simultaneously recording the PIT mark;
The fry that mark is good is supported temporarily at indoor cement pit, with pellet, feeds, and throws something and feeds every day 2～3 times, and feeding volume is 3%～4% of fry body weight; Feed after 5～7 days, the fry after mark is proceeded in outdoor earth pond and carries out conventional cultivation; In 3 year 1～February of cultivation to the, measure the body weight of whole markd fishes, body weight during for results;
(2) according to hypothesis and the computing formula of compensation index, calculate 97*96 the compensation exponential matrix that family is right, and analyze its characteristics, see Fig. 1;
Result shows: the compensation exponential distribution takes advantage in a positive interval negative one, is secondly to be less than to bear one, weightening finish when the 2nd weightening finish that the time point family is right of this explanation is significantly higher than the PIT mark; Have compensatory growth in the family selective breeding process, family body weight and weightening finish with compensatory growth are improved generally.Along with the raising of degree of compensation, results body weight and gaining effect are obvious.
(3) according to the hypothesis of YN effect, analyze 97 familys compensatory growth have or not the size with degree of compensation, in Table 1.
The impact of compensatory growth on body weight and weightening finish under the different categorization levels of table 1
Annotate: the difference of letter represents significant difference (P<0.05)
Result is visible as shown in Table 1: except 0.05 level, the family that degree of compensation is higher has higher PIT mark body weight, and except 0.25 and 0.30 level, the family that degree of compensation is higher has higher results body weight and weightening finish.Visible, the body weight that arranged unmatchful 2 periods of compensatory growth and weightening finish all have remarkable impact.
On the basis of (3), detect the impact of the difference of compensatory growth degree on different times body weight and weightening finish, the results are shown in Table 2.
The impact of the difference of table 2 compensatory growth degree on body weight and weightening finish
Annotate: the difference of letter represents significant difference (P<0.05)
Result is visible as shown in Table 2: during for the PIT mark that reaches family in various degree, body weight, results body weight and weightening finish average compare, raising along with degree of compensation, these 3 indexs are all the trend risen, and results body weight and weightening finish are boundary in 0.15 level, and difference is obvious.
Comprehensive above step, we can obtain, the research method of compensatory growth in a kind of fish family Breeding Process, this method can break through the limited simple compensation growth analysis of nutrition on traditional sense, and the compensatory growth of carrying out family selective breeding in the fish breeding process detects.Result of study is to have available compensatory growth in the fish breeding process, and compensatory growth has remarkable impact to results body weight and weightening finish.Along with the increase of degree of compensation, this impact is more obvious, and this also proves that the method is feasible from another point of view, analyzes the compensatory growth successful.
Claims (3)
1. the method for research compensatory growth in a fish family Breeding Process, concrete treatment step is as follows:
(1) obtain the weight data of the fish of different vegetative stages in the fish family seed selection: concrete operations are for first carrying out one by one the PIT individual mark to the fish of cultivating 7～15g, with syringe, the less radio-frequency mark is injected to the fish belly chamber, then carry out artificial feeding to the 3 years, body weight while while recording fish from the PIT mark to results, in this time period, being no less than 2 time points
(2) set up 3 hypothesis analyzing for compensatory growth: first hypothesis: the weightlessness of the hypothesis of compensation index---restriction of assumption condition is 2 weight poor of familys relatively when the PIT mark, and the correspondence weightlessness of this two family while being defined as results of the weightlessness after compensation; Second hypothesis: the hypothesis of YN effect---97 familys are when carrying out in twos relatively, and during the PIT mark, body weight reaches significant difference, and when gathering in the crops between two familys body weight difference significantly be not defined as these two familys and there is the YN effect; The 3rd hypothesis: compensation level is appraised and decided---different compensation levels, 97 familys of take are benchmark, with 5%, 10%, 15%, calculate by that analogy criteria for classification, until the categorization levels of calculating is higher than the maximum family coefficient magnitudes that has the YN effect in 97 familys, the YN effect numerical value of class standard and each family of then scoring compares, criteria for classification when the YN effect during lower than certain level, be designated as 0, reaches or be greater than this criteria for classification, be designated as 1, so just all familys carried out having according to compensation level and nothing or the classification of different degree of compensation.
2. the method for research compensatory growth in fish family Breeding Process according to claim 1 is characterized in that: measure the weight data of 2 time point macrura reevesiis in step (1), while being respectively the PIT mark and when results.
3. study the method for compensatory growth in fish family Breeding Process according to claim 1 and 2, it is characterized by: also comprise method validation step (3): i.e. the different family degree of compensation, carry out different degree of compensation to the body weight of fish and the impact of weightening finish by research method in claim 1 or 2, study the impact of degree of compensation difference on the fish weightening finish, verify the evaluation of the method for described compensatory growth to compensation effect.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1911005A (en) * | 2005-08-08 | 2007-02-14 | 河南农业大学 | Method for raising chicken |
| CN101238800A (en) * | 2008-03-05 | 2008-08-13 | 中国水产科学研究院淡水渔业研究中心 | Method for marking tilapia individual |
| CN101292636A (en) * | 2008-02-14 | 2008-10-29 | 浙江海洋学院海洋与渔业研究所 | Method for cage culture of spotted maigre |
| CN101836607A (en) * | 2010-04-22 | 2010-09-22 | 浙江海洋学院 | Method for breeding macrobrachium nipponensis |
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2012
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1911005A (en) * | 2005-08-08 | 2007-02-14 | 河南农业大学 | Method for raising chicken |
| CN101292636A (en) * | 2008-02-14 | 2008-10-29 | 浙江海洋学院海洋与渔业研究所 | Method for cage culture of spotted maigre |
| CN101238800A (en) * | 2008-03-05 | 2008-08-13 | 中国水产科学研究院淡水渔业研究中心 | Method for marking tilapia individual |
| CN101836607A (en) * | 2010-04-22 | 2010-09-22 | 浙江海洋学院 | Method for breeding macrobrachium nipponensis |
Non-Patent Citations (2)
| Title |
|---|
| 吉富罗非鱼家系选育3代后形态性状变异及其对体质量的影响;李灵玲等;《水产学报》;20120430;第36卷(第4期);第489-496页 * |
| 李灵玲等.吉富罗非鱼家系选育3代后形态性状变异及其对体质量的影响.《水产学报》.2012,第36卷(第4期),第489-496页. |
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