selective breeding Learn more about selective breeding
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The latest course of Maize breeding techniques and methods
Seeds are the most important means of production, and new varieties are the core foundation of agricultural scientific and technological progress. Maize breeding and production practice show that 43% to 60% of the increase in maize yield is achieved through excellent varieties and their popularization. therefore, it is important to cultivate and popularize new maize varieties.
2020-11-10 The latest corn breeding techniques methods tutorials seeds are -
How to select breeding rabbits
How to select breeding rabbits
2018-11-23 -
Four key points of selection and retention Management of improved breeding Chicken
First, if there is a good flock of chickens without reasonable selection and misbreeding, then the offspring will not be good. Therefore, one particularly excellent rooster is selected for every 810 hens in the same breed, and has a unique
2020-11-08 Good breeder of selection and retention management four main points one combination quantity -
Breeding techniques of improved Tea Variety
There are many methods to select excellent tea varieties, such as systematic selection, cross breeding, artificial breeding, introduction and domestication and so on. (1) systematic seed selection: also known as single plant seed selection. According to the breeding goal, a good single plant is selected from the seed selection materials, and the first single plant is propagated asexually, and compared with the standard species and the original population species, the excellent and good ones are cultivated into new varieties for propagation and promotion. Step: ① primary selection: according to the correlation between seed selection objectives and tea characters, several excellent individual plants were selected in the tea garden, marked and numbered for observation.
2019-01-16 -
Selection and purchase method of meat breeding pigeon
Selection and purchase method of meat breeding pigeon
2018-07-04 -
Breeding skills of Rabbit selection
Breeding skills of Rabbit selection
2018-07-04 -
Selection and Rational Utilization of Breeding Rams
Selection and Rational Utilization of Breeding Rams
2018-06-30 -
Key points of selection of Meat Rabbit
Key points of selection of Meat Rabbit
2019-11-10 -
Selection method of breeding Frog in Stone Frog Culture
The spawning and hatching season of stone frog is from April to September, and the spawning peak is from May to June. In order to improve the spawning rate and hatching rate, we must start from the hibernating recovery of breeding frogs, and do a good job in the selection, breeding, spawning and hatching of breeding frogs. The selection of frogs is the basis for artificial reproduction.
2020-11-08 Stone frog breeding planting frog selection method stone frog spawning -
Breeding of introduced Pig breeds and Application of New breeding techniques
The continuous development and progress of science and technology make it possible for people to explore the laws of nature and reveal biodiversity. The greatest progress of pig breeding in the 20th century is that the daily gain of pigs exceeded 800g / day, the lean meat rate reached more than 60%, the ratio of feed to meat reached 2.8g / ∶ 1, and the body weight of pigs reached more than 90kg in 156days. In recent years, with the continuous development of breeding theory and practice, pig breeding in developed countries has gradually changed from breed selection to specialized breeding.
2019-01-16 -
Population selection should be paid attention to in efficient goose breeding.
Population is the abbreviation of a species group such as group, strain, variety or genus. Population selection is based on the fact that both parties belong to the same or different populations. Population selection can be divided into two categories: purebred breeding and cross breeding, while hybrid breeding can
2020-11-08 Population selection yes high efficiency raising geese need attention population -
The method of selection, retention and matching of breed raccoon dogs
Selection and selection of raccoon dogs through breeding and breeding for one year, the breeding ability of all male raccoons and the estrus, parturition, motherhood and milk secretion of females have been mastered. At the same time, because postpartum raccoon dogs generally have the highest litter size in the second to fourth years, all male and female raccoon dogs are selected according to the records before the skin is removed in the first year, and excellent raccoon dogs are gradually bred. The male raccoon dog reserved for breeding should be tall and long, strong hind legs, wide chest, long waist and straight back, long and fluffy tail, and testicles.
2019-01-16 -
Skills of Bee Culture
Select bee colony: know the local natural environment in advance and select the bee species suitable for local breeding. Choose beehives: beehives with solid materials and light texture should be selected, and beehives with movable frames can be selected for beginners. Transfer colony: place colonies that have been purchased or trapped in the wild
2020-11-08 Bees breeding skills Summary selection Colony advance understanding -
Conditions and implementation of purebred breeding of Yellow cattle
Yellow cattle is an inherent common cattle breed in China. The number of breeding heads in China ranks first among all livestock or cattle, and the breeding area is almost all over the country. It is mainly used for service in agricultural areas, milk in semi-agricultural and semi-pastoral areas, and milk and meat in pastoral areas. In terms of shape and performance,
2020-11-08 Yellow cattle purebred breeding conditions and practice yellow cattle yes -
How to select the breed of black-bone chicken
How to select the breed of black-bone chicken
2018-07-23 -
Marker-assisted selection is the general direction of future breeding
Conventional breeding methods have limitations such as genetic variation and genomic hybridization. In principle, these limitations can be overcome by genetic engineering methods such as recombinant DNA. By using these methods, the genes with definite function can be cloned and the genes can be fast and high.
2016-03-20 Labeling assistance selection yes future breeding general direction routine -
Tea sex line breeding
The sexual offspring of tea plant are produced by the combination of male and female cells, and a breeding method of new varieties is developed through selection. A variety bred is called a sexual variety. The method is: 1. Selection of superior individual plant or type: single plant selection or group selection from the original material nursery or production tea garden according to breeding objectives; 2. Seed collection and seedling raising: for the primary selected individual plant or group, the seeds were collected respectively, and the seedlings were raised according to the system, and the seedling characters and variety purity were identified. Family or group comparison trial: compare selected families or groups with controls
2019-01-16 -
Zhejiang East White Goose: is it easy to raise East Zhejiang White Goose? How to select geese for eastern Zhejiang white geese
Is it easy to raise white geese in eastern Zhejiang? It's easy to raise. Eastern Zhejiang White Goose is an excellent goose breed, which has the characteristics of delicious meat and fast growth in the early stage. Then how to select the breed of eastern Zhejiang white goose? Do you know? Let's take a look. Breeder geese can transfer themselves through genetic material
2019-01-20 Eastern Zhejiang white goose is it easy to raise -
How to choose a good breed for raising minks and what matters needing attention?
What is the seed selection? Seed selection is to select good individuals for seed use and eliminate bad individuals at the same time. How to choose a good seed? 1. Choose a good variety. A good breed is the basis for improving the litter birth rate and survival rate of minks. When introducing a variety, it must be taken into account.
2020-11-08 Raise mink how choose species yes what matters needing attention -
Feeding and management techniques of breeding boars selection of breeding boars
When it comes to pigs, I believe everyone is very familiar with it, because we do not all know how to eat pork, and many people raise some pigs in our life, which is one of the more common poultry. Breeding boars are actually boars used to mate with sows, so we all know about breeding.
2020-11-08 Breed boar breeding management technology selection speaking of pig