主要根据肉兔本身的质量性状或数量性状在一个兔群内个体表型值差异，选择个体，淘汰低劣个体。常用的有剔除法、更优法和总分法等3种。

According to the quality of their rabbit traits or quantitative trait differences in a rabbit group within the individual phenotype, choose the best individual, the elimination of poor individuals. There are 3 kinds of commonly used methods: tick division, optimum method and total score method.

(1)剔除法即对选择的每个性状都限定一个更低标准，只要有1个性状低于该标准即予以淘汰。

(1) the elimination method defines a minimum criterion for each trait selected, which is eliminated as long as 1 traits are below the standard.

(2)更优法对兔群中的任何个体，只要有1个性状的表型值优于其他个体，则该个体即予留种。

(2) the optimal method for any individual rabbits, as long as the phenotypic value of 1 traits than other individuals, the individual shall be reserved.

(3)总分法对每个性状根据优劣进行评分，将几个性状累汁，总分更高的个体即予留种。例如，某养兔场对一兔群进行选择，希望选出产仔率(L)高、早熟(M)、肉质(Q)、毛皮品质(P)好的个体留作种用。每个性状根据优劣分成10级，分别计分为]一10分。

(3) the total score of each trait according to quality score, several traits tired juice, with the highest scores for individual selection. For example, a warren of a group of rabbits were chosen to select the high birth rate (L), early (M), (Q), excellent meat quality fur (P) good for individual use. Each character is divided into 10 grades according to their merits, which are divided into 1 and 10 points respectively.

肉兔的秋季繁殖：秋季气候温和，饲料广泛，营养丰富，公、母兔体质开始恢复，性欲逐渐旺盛，母兔受胎率高，产仔数多，是肉免配种繁殖的又一个好时期。据生产实践观察，9—11月份公兔性欲渐趋旺盛，精子活力增加，密度增大；母兔发情率为75％一80％，配种受胎率为60％一65％，平均每窝产仔数6—7只。

Rabbit: Autumn Autumn breeding feed widely, mild climate, rich nutrition and physical fitness of male and female rabbit began to recover, libido gradually strong, female rabbit pregnancy rate is high, theaveragepregnancytimeis62, is also a good meat free breeding breeding period. According to the production practice of observation, 9 - November male rabbit libido gradually vigorous, sperm density increases; female rabbits increased, the rate of estrus was 75% to 80%, the breeding pregnancy rate is 60% 65%, the average litter size of 6 - 7.

但秋季为肉兔换毛季节，营养消耗大，对配种繁殖的影响较大，必须加强管理，调整日粮。同时，公兔因夏季休闲后可能出现暂时性不育，配种必须进行复配；人工授精时，采集的精液更好弃去不用。

But autumn is the rabbit molting season, nutrient consumption, a great influence on the breeding, we must strengthen the management, adjusting the diet. At the same time, male rabbits may suffer from temporary infertility after summer leisure, and the first mating must be mixed. The semen collected for the first time should be discarded in artificial insemination.

肉兔的夏季繁殖：季气候炎热，尤其是南方各省，高温多湿，肉兔食欲下降，体质瘦弱，性机能不强，配种受胎率低，产仔数少。北方比南方好些。据生产实践观察，夏季公兔性欲不强，精子活力下降，密度降低，畸形精子数增加；母兔发情率为20％一40％，受胎率为30％一40％，平均每窝产仔数3—5只。即使产仔，因哺乳母兔天热减食，泌乳量减少，仔兔瘦弱多病，成活率很低。但如母兔体质健壮，又有遮荫防暑条件，温度低于32℃的地区，仍可适当安排配种繁殖

Rabbit breeding in summer season: hot weather, especially in the southern provinces, high temperature and humidity, rabbits decreased appetite, poor health, sexual function is not strong, low conception rate and litter size less. The north is better than the south. According to the production practice of observation, the summer male rabbit undersexed, sperm motility, abnormal sperm density decreased, the increase in the number of female rabbits; estrus rate was 20% 40%, pregnancy rate is 30% 40%, the average litter size of 3 - 5. Even if pregnant, lactating rabbits for hot days eat less, reduce the amount of lactation, pups weak, survival rate is very low. But if the female rabbit healthy body, and summer shade conditions, temperature lower than 32 DEG C, can be appropriate arrangements for cross breeding