How do geese distinguish between male and female? How long does it take to lay eggs after feeding?

Nowadays, the breeding of geese in rural areas has become very common. The geese are also male and female, which can be seen by their appearance. Generally, eggs can be laid after about 6 months of rearing.

It can be identified by the tail, and it can be judged by the cloaca, and in general, the order will be placed after waiting for adulthood.

The <> method is as follows: 1. When incubating for a week, take the goose eggs to the light and take care of them. Goose eggs that hatch can see some shadows that have developed into a primordial blank. The eggs of the goose can't hatch, nothing can be seen, and it is transparent.

2. At the 11th day of incubation, the first roll slide is carried out to irrigate the eggs twice. In a goose egg that can hatch a goose piglet, the allantois closes at the tip of the egg, surrounding the egg white, and the tip of the egg is covered with blood vessels. Goose eggs that do not hatch goose litters are non-vascular, translucent inside the eggs, and have vague clumps in the eggs.

3. The third time the eggs are nucleated on 18 to 19 days after incubation. The goose eggs that can hatch goose cubs are enlarged, the edge of the air chamber is curved and oblique, the blood vessels are thick, and the embryo can occasionally be seen, that is, fetal movement. The goose eggs that cannot hatch goose chicks have little or no curvature at the edge of the air chamber, the tip of the egg is shiny, the inside of the egg is dark, turbid, and there is no warmth to the touch.

Generally, about ten years is considered an old goose. Usually geese can live for more than ten years, and if they are fed well, female geese can lay eggs for more than ten years, but the production will decline year by year.

Female geese generally need to be raised for two or three years before they begin to lay eggs, and each female goose can lay about dozens to 100 eggs a year. The number of eggs laid by different varieties of geese is also different, such as Magang goose sexual maturity early, 140-150 days old to start production, the first year of the new female goose lays about 30 eggs, the first Dan finch Shen 2-3 years for the peak production period, about 35-40 eggs per year.

Precautions for goose laying eggs:

In addition, it should be noted that geese have two farrowing years every year, that is, the coldest time and the hottest time will fallow production, and domestic geese will grow to about 9 months will be sexually mature, under feeding, male geese are old, female geese are more than 2 years old to begin mating. Spawning begins more often than spring; Eggs are laid from dozens to 100 per year, and geese can incubate themselves, with an incubation period of 28-33 days.

The time of the goose laying eggs is related to the time of the goose seedlings, which is generally raised from the beginning of the goose seedlings to the time when the eggs are laid in six or seven months. In addition to the variety, the inflatable waiting is different, the laying period is not the same, the south of our country is concentrated in the winter and spring two seasons of egg production, generally in November of the first year of the year in May for the laying time.

Shape identification.

1 The gosling stage There are some differences between male and female chicks at hatching. In general, males have a larger physique, a long and broad beak, a longer body, a larger head, a longer neck, and a straighter standing posture; The female chick has a small physique, a short, narrow beak, a round body, a slightly downward belly, and a slightly oblique standing posture.

2.Growing and growing-up goose stages.

With the increase of age, the difference between the appearance of male and female geese becomes more and more significant, and the male appearance of male geese becomes more and more prominent, and it is very obvious in the adult stage, which is manifested in large body size, long and blunt beak, thick and long neck; The chest is deep and broad, the back is wide and long, the abdomen is flat, the shin is long, and the forehead is significantly larger than that of the female goose. Compared with male geese, female geese are relatively light and delicate, with a long and round body, a slender neck, shallow and narrow forequarters, deep and wide hindquarters (especially obvious abdominal drooping during the laying period), broad hips, strong legs, and wide distance.

Three. Sound identification.

The male goose's song is high, high-pitched, clear, and loud; The female goose's song is low, thick and dull.

Four. Action identification.

To the adult goose period male and female geese in the action behavior shows a great difference, can be judged by the action of male and female, generally speaking, in the group of geese, the head goose is mostly male goose, and shows fierce, mighty, can play the role of caretaking. When reared in groups, individual male geese may dominate one or several female geese, or do not allow other male geese to enter their territory, compared to female geese are more docile and tame.

Learn from others.

In the process of production practice, the goose eggs are illuminated with lights to see the inside of the eggs, and the fertilized goose eggs have opaque black spots, and the unfertilized ones have no obvious characteristics. At room temperature, it is possible to distinguish only after one week of incubation. When the goose eggs are taken to the light to take care of when they are incubated for a week, the fertilized goose eggs can see some shadows of the development of the first blank, and if there are no fertilized goose eggs, they cannot see anything and become transparent.

The first time the eggs are photographed during the incubation period is 5-6 days after hatching, and the fertilization rate and embryonic development of the eggs are mainly checked. Under the illumination of the normally developed embryo, the embryo can be faintly seen floating upward, and the vascular web on the yolk sac expands like a spider's web. Weak embryonic blood vessels are slender and have a small dilated surface; The inside of the infertile egg is transparent, and the shadow of the yolk is faintly presented; Dead goblins appear as blood lines or blood rings, sometimes with small black dots sticking to the shell.

The second time the eggs are photographed at 11 days after hatching. In a normally developed embryo, the allantois closes at the tip of the egg, surrounding the egg whites, and the tip of the egg is covered with blood vessels; In stunted embryos, the allantois has not yet closed, and the tip of the egg has no vascular distribution; Dead embryonic eggs are non-vascular, translucent inside the eggs, and there are vague clumps in the eggs.

The third time is done 18-19 days after incubation. In a normally developed embryo, the air chamber is enlarged, the edge of the air cell is curved and oblique, the blood vessels are thick, and the embryo can occasionally be seen, that is, fetal movement, commonly known as turning and flashing. The hatchling that is about to emerge occupies the eggs; The air chambers of the stunted embryo are enlarged, flat, the blood vessels are distinct, and the tip of the egg is shiny; The edge of the air chamber of the dead embryo egg is not curved or uncurved, the tip of the egg is shiny, the inside of the egg is dark, turbid, and there is no warmth to the touch.

Use a flashlight to see if it is fertilized.

The geese grow about 9 months before sexual maturity, male geese are raised under the age of male geese, female geese are more than 2 years old to begin mating, more than spring to begin to lay eggs; Eggs are laid from dozens to 100 per year, and geese can incubate themselves, with an incubation period of 28-33 days.

The laying period (including the nesting period) of geese is less than 2 3 months in a year, about 7 8 months, and 4 5 months are off. The annual laying period of the mother goose, in addition to the difference in species, is also affected by the geography and climate of each region. In the southern part of China, it is mostly in winter and spring, and in the north it is from February to June.

Different breeds of geese lay different eggs. Magang geese mature early and start producing at the age of 140-150 days. The new female goose lays about 30 eggs in the first year; The 2nd-3rd year is the peak production period, about 35-40 eggs are laid every year, 7-8 months are called the first creation, 9-11 months are called the new geese, 12-1 months are called snow boys, 2-4 months are called long production, and 5-7 months are the natural farrowing period.

1. Select breeding geese: those who are more than 10 months old are large, robust, with bright eyes, slightly longer necks, and good development. The ratio of male to female is, 1:

5-6, small breeding geese 1:7 a female goose that has laid eggs for a year and young male geese mate, and the fertilization rate and hatching rate of eggs are high. The avian proverb says:

There should be fewer males and older females. That's exactly what happened. 3.

Release water to dismantle mating: Even if mating is carried out on the surface of the water, there are still a small number of female geese that cannot be mated.