GB 6940-2008 English PDF

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GB 6940-2008: [GB/T 6940-2008] Guan zhong donkey
Status: Valid

GB 6940: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB 6940-2008	319	Add to Cart	3 days	[GB/T 6940-2008] Guan zhong donkey	Valid
GB/T 6940-1986	359	Add to Cart	3 days	Guan zhong donkey	Obsolete

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Basic data

Standard ID: GB 6940-2008 (GB6940-2008)
Description (Translated English): [GB/T 6940-2008] Guan zhong donkey
Sector / Industry: National Standard
Classification of Chinese Standard: B43
Classification of International Standard: 65.020.01
Word Count Estimation: 12,141
Date of Issue: 2008-02-15
Date of Implementation: 2008-05-01
Older Standard (superseded by this standard): GB/T 6940-1986
Regulation (derived from): Announcement of Newly Approved National Standards No. 2, 2008 (No. 115 overall)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This Chinese standard specifies the characteristics of the species off the donkey, production performance, kind of ass grade identification, seed registration basic requirements. This standard applies to the species off the donkey donkey species level identification and authentication.

GB 6940-2008: [GB/T 6940-2008] Guan zhong donkey

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Guan zhong donkey ICS 65.020.01 B43 National Standards of People's Republic of China Replacing GB 6940-1986 Guanzhong donkey Posted 2008-02-15 2008-05-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

Chapter 5 of this standard are mandatory, the rest are recommended. This standard "off the donkey" (GB 6940-1986) were amended including reproductive performance, beef performance, body sizes, BMI, comprehensive assessment and progeny testing, the main difference between GB 6940-1986 are as follows. --- Increasing the terms and definitions; --- Proposed meat performance indicators; --- Rating identified body size and weight of rates by the age of seven simplified 3; --- Removed servitude ability ratings; --- Comprehensive assessment taking appearance, body size, body weight three indicators comprehensive evaluation index calculation method; --- Removed appearances certificate, an increase of varieties registered contents. This standard from the date of publication instead of GB 6940-1986. Appendix B of this standard is a normative appendix, Appendix A, Appendix C is informative appendix. This standard is proposed and managed by the People's Republic of China Ministry of Agriculture. This standard is mainly drafted by. Shaanxi Province Animal Husbandry and Veterinary, Northwest Agriculture and Forestry University. The main drafters of this standard. Liu close election, Wang Yongjun, Friends of the original plot, Wang Wujiang, Lu Wenlong. This standard replaces the standards previously issued as follows. --- GB 6940-1986. Guanzhong donkey

1 Scope

This standard specifies the characteristics of the species off the donkey, production performance, kind of an ass grade identification, seed registration basic requirements. This standard applies to discrimination off the donkey and donkey species level identification of varieties.

2 Terms and definitions

The following terms and definitions apply to this standard. 2.1 After slaughtering donkeys peeled, head, tail, blood, internal organs (not including the kidney and surrounding fat), front knee and hind limbs below the hock, reproductive Organ, called the carcass. Carcass weight before slaughter accounted hunger strike after 24h live weight of slaughter percentage rate. 2.2 All meat picked off the bone and connective tissue after carcass weight (including kidney and carcass fat) before accounting for slaughter live weight after fasting 24h hundred Fraction. 2.3 Donkey vehicles and farm implements, played short of the maximum pull force. 2.4 Rump length accounted for rump width percentage. 2.5 According to various aspects of the situation descent method to evaluate the performance of the genetic quality of the breeding stock.

3 characteristics of the species

Guanzhong donkey originating in the Guanzhong Plain in Shaanxi Province, for the meat served either variety. Its tall men, structural symmetry, the body is elongated square. Adult male Donkey average body height 133cm, mare 130cm. Body hair is short and fine, shiny. Mainly black coat, a few maroon, mouth head, eye Ring, belly white (commonly known as pink nose, rosy, white belly). Jackass head slightly heavy, mare and more delicate; Guangshen chest, ribs opened, back & waist straight, but Tajiri oblique shorter; correct limbs, light and flexible transport step. Kind of an ass image See Appendix A.

4 Performance

4.1 Meat Performance Under normal feeding conditions, 1 month to 6 months of age daily gain of 0.42kg, 7 months to 18 months of age daily gain of 0.23kg. 24-month-old jackass Weight 270kg or more, more than 240kg mare; 48-month-old jackass weight more than 310kg, 270kg mare above. 24-month-old moderate fat Of short-term fattening donkey in good condition fattening daily gain more than 0.50kg, the slaughter rate of more than 46%, net meat rate of more than 36%. 4.2 Reproductive Performance Mare 18 months of age of sexual maturity, 24 months to 30 months old breeding; average estrous cycle 20.3d, the average duration of estrus 6.1d; foal birth weight 27kg or more. Jackass breeding began 30 months, in an average volume of ejaculate 64mL vitality 0.75 per milliliter Containing sperm count 1.6 × 109 Ge. 4.3 Performance Hall Jackass maximum pull force of 247kg, mare maximum pull force of 231kg.

5 kinds of ass grade identification

5.1 kinds of ass level were identified in 18 months, 30 months and 48 months of age in accordance with Appendix B. 5.2 Identification of varietal character and appearance Table B. 1 Top score. Blue hair, gray hair and black aconite, which does not score. Body hair is normal, but there are pockets of white hair revealed jaw, abdomen white hair outreaching limbs The upper portion of the outer white hair who was in one of characteristics of the species should be appropriate to the offense, not enter extra time jackass comprehensive assessment. Where have severe chest narrow, relying on the knee (X shape), cross sudden, lameness, concave back concave waist, back convex convex waist, pointed rump, horizontal lines and gnashing of teeth bite missing shortcomings Who jackass not score, can not be awarded when mare comprehensive assessment grade, level. 5.3 Identification of body size 5.3.1 Table B. Level 2 assessment body size. Four standard body size, according to the lowest level of a defined level. 5.3.2 Table B. Level 3 will be converted into body size fraction. According to body height, body length, chest, rump actual index value score. Number of body size Super value exceeds the lower limit, the body is no longer considered high, according to body length, chest, rump index the lowest one in three sub-grade to the lower limit based on the increase Points, the other two reference values for each additional 1cm body length plus 1.5 points, Bust plus 1 point for each additional 1cm, Tajiri index increased by 1 unit Plus 3 points. 5.4 Identification of body weight 5.4.1 Table B. 4 Evaluation of weight classes. 5.4.2 Table B. Level 3 equivalent to the weight fraction. Weighing between each grade ratings by the actual value of the weight may be. Weight super Premium over the standard low limit, each additional 5kg plus 2 points. 5.5 Comprehensive Assessment 5.5.1 Reserve comprehensive assessment stud donkey and mare comprehensive assessment index, based on appearance, body size and weight of three indicators, in the following manner Method. 5.5.1.1 traits are weighted according to their importance, the weighting factor Chou as follows. Appearance (Chou 1) = 0.35; Body size (Chou 2) = 0.30; Weight (Chou 3) = 0.35. 5.5.1.2 Comprehensive Assessment Index (I) See calculation formula (1). I = 0.35W1 + 0.30W2 + 0.35W3 (1) Where. W1 --- appearance rates; W2 --- body size ratings; W3 --- weight ratings. 5.5.1.3 Table B. 3 in terms of integrated comprehensive assessment index level. 5.5.2 progeny testing 5.5.2.1 stud donkey comprehensive assessment to progeny test mainly before progeny testing according to the appearance, body size and weight of three indicators comprehensive assessment. 5.5.2.2 take half-sib progeny test method earlier age. Comprehensive assessment index as premium, reserve jackass level in 24 months Age, randomly selected premium, a breeding mare, until 18 months after the birth of offspring, comprehensive evaluation index calculated progeny, many descendants of determination At 10. 5.5.2.3 Table B. 3 to be measured offspring of a male donkey comprehensive assessment in terms of the comprehensive index level. And a premium offspring proportion of ≥75%, jackass progeny test grade premium; 50% ≤ grade and a proportion of < 75%, the level jackass progeny test grade level; Super Grade ratio < 50% for the two, jackass progeny test rating of 2. 5.5.3 comprehensive assessment shall refer to his parent level. As a parent parties Overall rating Overall grade were higher than itself, it can be the ass Overall rating level, but the original composite score unchanged.

6 seed registration

6.1 Conditions seed registration Registration donkey breeding and seed should meet the following conditions. a) pedigree files clearly; b) a comprehensive rating for the premium; c) a parent in a more comprehensive rating. 6.2 Registration seed 6.2.1 Where a kind of an ass meet the above conditions, at the age of 30 months or more, fill in the ass by a variety of courses, breeding stations, animal husbandry and breeding station Application Form (See Appendix C) escalation provincial authorities for review. 6.2.2 qualified through examination kind of an ass, by the provincial departments in charge of the preparation of seed registration number and registration certificate issued to seed. 6.2.3 sell kind of an ass, thoroughbred registration certificate shall be transferred, if death or eliminated, should be promptly reported to provincial authorities for the record.

Appendix A

(Informative) Stud, mare pictures a) b) Figure A. One kind of public mare pictures

Appendix B

(Normative) Guanzhong donkey evaluation criteria and body size, body weight measurement method and requirements B. 1 off the donkey varietal character and appearance rates shown in table B. 1. Table B. 1 off the donkey varietal character and appearance of the score sheet Project out to the conditions Jackass mare Score out score out Breed characteristics Obvious characteristics of the species, is Mao Guangliang, mouth, head, eyes, belly white fur industry Limit significantly. Jackass has Hanwei, loud song; mare tame nature, mother Good Constitution and the overall structure Strong constitution, structure, symmetry, well-developed muscles, tendons, ligaments, hair Up. Slightly oblong shape, wide and deep chest, back wide and long, wide rump length Head and neck Head of moderate size, good type, there are male jackass, asses handsome, eye Ming dynasty Bright, nostrils, mouth side, Qi teeth, ears erect, concave jaws wide. The long neck Generous, cervical muscle, ligament developed. Praise head and neck; neck bonded well Forequarters chest wide and deep, the shoulder long oblique muscle fat. A generous, moderate length 1515 The footer Beiyao length and width, straight, strong muscles, a good combination. The opening of the ribs round. Jackass belly full tubular shape; asses without big belly sag Hindquarters Rump width to length, however oblique, femoral hip muscle fullness. Jackass testicular symmetry, hair Good education, obviously epididymis, scrotal thin capillary, elastic; mare milk Housing well-developed, well-proportioned normal nipple Limping Upright limbs, limb situation correctly, tendon obvious, strong joints. Hoof round Large, horseshoe positive, hoof quality solid. Transport step brisk strong Total 100 100 B. 2 off the donkey body size grading is shown in table B. 2. Table B. 2 off the donkey body size grading table Age rating Jackass mare Body height/cm body length/cm bust/cm rump index /% of body height/cm body length/cm bust/cm rump Index /% 48 months Premium 139 140 154 117,133,134,147,111 A 134 135 148 114,128,129,141,108 Two 129 130 143 112,123,124,136,106 30 months Premium 134 130 142 117,130,126,139,117 A 130 126 138 116,125,121,134,115 Two 126 122 134 113,120,116,129,112 Table B. 2 (cont.) Age rating Jackass mare Body height/cm body length/cm bust/cm rump index /% of body height/cm body length/cm bust/cm rump Index /% 18 months Premium 127 119 130 124,124,117,126,121 A 123 116 126 122,119,112,121,118 Two 119 112 122 120,114,107,116,116 B. Level 3 off the donkey and score conversion table shown in Table B. 3. Table B. Level 3 off the donkey and score conversion table Level jackass mare Premium 85.0 points 80.0 points or more A 75.0 minutes to 84.9 minutes 70.0 points to 79.9 points Two 65.0 minutes to 74.9 minutes 60.0 minutes to 69.9 minutes B. 4 off the donkey weight rating shown in table B. 4. Table B. 4 off the donkey weight in kilograms rating tables age Jackass mare Premium grade one two one two 48 months 325 310,295,285,270,255 30 months 295 280,265,260,245,230 18 months 255 240,225,235,220,205 B. 5 body size, body weight measurement method and requirements B. 5.1 Body tape measure B. 5.1.1 measuring instrument. measurement of body height and body length by measuring stick, measuring bust with a tape measure, measure rump length, rump width of the pelvis with calipers. measuring Before the measuring instrument is corrected using standard measuring tool. B. 5.1.2 Posture. measuring body size, should make a donkey standing upright on a flat, solid ground, front and hind limbs are in a straight line around The head naturally reach (the top of the head and armor close to horizontal). B. 5.1.3 measurement site a) body height. A highest point to the vertical distance from the ground; b) body length. from the shoulder end of the leading edge to a straight line from the ischial tuberosity rear edge; c) Bust. by the amount of corners taken after the scapula chest circumference. Tightness to be able to put two fingers slide up and down is appropriate; d) rump length. waist to hip angle leading edge straight line distance between the ends; e) rump width. two waist angle horizontal distance between the outside. B. 5.1.4 on hard ground measurements of body height, the body should increase the number of high-1cm measured (lower line height measuring rod screws). B. 5.2 Determination of weight Weight should be measured actual weighing (weighing before morning feeding fasting); if unconditional, can temporarily use the formula (B.1) estimate. Weight (kg) = Chest 2 × body length 10800 +45 (Or 25) (B.1) Where. bust, body length in cm. 36 months of age, body weight estimated by a constant "45", the following 36 months and 36 months of age colt Biaoqing emaciated donkey, its estimated weight With constant "25."

Appendix C

(Informative) Guanzhong donkey breeding Registration Statement Numbering Kind of an ass-owned unit or individual name Address Number Date of Birth Gender donkey date Donkey number. Their overall rating. Progeny testing Comprehensive Level. Donkey number. Comprehensive Level. Parent donkey number. Category. Mare Number. Category. Parent donkey number. Category. Mare Number. Category. Breed characteristics And appearance Rating. Main advantages and disadvantages. Body size Rating. (body height. cm; length. cm; Bust. cm; Tajiri index.%) Weight/kg. Rating. Comprehensive Evaluation Index. General Level. Progeny test. Super Grade progeny% by Category. Identification date date year month day 5 the left side of the body color photograph year month day provincial In charge department Examine opinion year month day ......

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