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A black-bone chicken and selection index technology, applied in the field of poultry breeding, can solve the problems of inaccurate measurement results and high subjectivity, and achieve the effects of improving the degree of refinement, easy promotion, and improving breeding efficiency
Active Publication Date: 2019-08-16
江苏立华育种有限公司 +2
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[0004] The technical problem to be solved by the present invention is: to overcome the problems of
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Embodiment 1
[0035]In this example, 40 105-day-old silky chickens from Jiangsu Lihua Animal Husbandry Co., Ltd. were selected to carry out the slaughter determination of the skin and muscle chromaticity indicators (in order to facilitate understanding and calculation, the original experimental scale was reduced from 300 to 40 Only). The model of the colorimeter used is 3NH-NR110 from Sanenchi Company.
[0036] 1. Instrument and sample preparation: Prepare the 3NH-NR110 colorimeter, and slaughter 40 silky chickens.
[0037] 2. Expose the site to be measured: expose the skin on the right shoulder of the chicken, separate the skin on the right chest, and expose the pectoral muscle.
[0038] 3. Chromaticity index measurement:
[0039] (1) Turn on the power supply, push the power switch to the I position;
[0040] (2) Press the menu key and select "Standard Sample Measurement";
[0041] (3) Press the measurement key to randomly select a chicken shoulder skin for measurement;
[0042] (4) P...
Embodiment 2
[0082] This embodiment selects 50 70-day-old ordinary feather silky chickens of Jiangsu Lihua Animal Husbandry Co., Ltd. to carry out the slaughter determination of skin and muscle chromaticity indexes. Use instrument and equipment with embodiment 1.
[0083] Steps 1 to 4 are the same as in Example 1, measuring phenotypic data (see Table 4),
[0084] Table 4 Chromaticity index values of shoulder and chest of 40 silky chickens
[0085]
[0086]
[0087] Get the regression equation of chest muscle color to skin color:
[0088] P L =39.405+0.013*S L (2-1)
[0089] P a =0.242+0.221*S a (2-2)
[0090] P b =-1.433+0.970*S b (2-3)
[0091] Step 5 is the same as in Example 1, calculating the combined selection index of individuals with extreme phenotypes:
[0092] (1) Select 20 individuals with the "darkest" and the "lightest" skin color and flesh color respectively (see Table 5);
[0093]Table 5 Measured value of chromaticity index in extreme groups of darkest ...
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Abstract
The invention relates to a black-bone chicken breeding method which comprises the following steps: slaughtering black-bone chickens, exposing shoulder skin and chest skin, and exposing chest muscles;measuring the brightness values L *, red and green values a * and yellow and blue values b * of the shoulder skin and the front, middle and rear parts of the chest muscles by using a color differencemeter to obtain a quantitative relation of the L *, a * and b * values of the based on supply-demand relation muscles to corresponding indexes of the shoulder skin; establishing a regression relationship Y between the flesh color and the skin color, and determining a skin color and flesh color combination selection index I by taking the skin color and flesh color chromaticity indexes as 50% weights respectively; establishing a Logistics discrimination equation; and collecting skin color data of the to-be-selected panning group by using a color difference meter, calculating a P value accordingto the Logistics discrimination equation, and finishing a skin color automatic grouping task according to the P value to realize automatic discrimination and breeding of the skin color and the flesh color. The method is improved in the aspects of personnel efficiency, influence on chickens, data objectivity, breeding progress and the like.
Description
technical field [0001] The invention belongs to the technical field of poultry breeding, and in particular relates to a silkie breeding method. Background technique [0002] Black-bone chicken is a rare medicinal bird unique to China, and the silky chicken produced in Taihe, Jiangxi Province is the most authentic. According to modern medical research, silky chicken is rich in melanin, protein, B vitamins, 18 kinds of amino acids and 18 kinds of trace elements, among which the content of niacin, vitamin E, phosphorus, iron, potassium and sodium is higher than that of ordinary chicken. Cholesterol and fat content is very low. The serum total protein and globulin content of black-bone chicken were significantly higher than that of common chicken. Black-bone chicken contains more amino acids than ordinary chicken, and it also contains much more iron than ordinary chicken. It is a tonic with high nutritional value. Eating silky chicken can improve physiological functions, dela...
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