Brief introduction of Jianyang big-ear goat: Jianyang big-ear goat is a new breed group formed by crossing American Nubian goat with Jianyang local goat for more than 50 years. As early as the War of Resistance against Japanese Aggression period, when the first lady of the Republic of China, Song Meiling, visited the United States, the United States government presented 40 Nubian goats to Song Meiling, and then crossbred them with Jianyang local goats in Longquan Mountain area of Jianyang.

From 65438 to 0982, Professor Liu Xiangmo, a famous sheep expert from Sichuan Agricultural University, formed a firm group to strengthen this excellent group and named it "Jianyang Big-Eared Sheep".

In order to further accelerate the pace, jianyang city Animal Husbandry and Food Bureau introduced a batch of Nubian goats from the United States in 1984 and 1985 respectively, and through further crossbreeding and improvement, a group of Nubian goats with high blood was formed.

After the company was established in 2003, it developed together with relevant departments and units. In 2004, it was officially named "Jianyang big-eared sheep" by the provincial government and became a new local breed. Appearance characteristics of Jianyang big-eared sheep;

1, the coat color is mainly brownish yellow; Part of the coat is black and full of luster. In winter, short and thin fluff grows on the inner layer of the coat. The head is triangular, the bridge of the nose is slightly arched, with or without horns, the junction of the head and neck is tapered, the neck is rectangular, the structure is symmetrical, the figure is tall, the chest is wide and deep, the back and waist are straight, the hips are short and oblique, the limbs are stout, the hooves are hard and the ears are long (15-20cm). The ram has a hairy beard on his chin. Some species have fleshy beards under their jaws.

2. Production performance: the average weight of adult ram can reach more than 150-200 kg, and the average weight of adult ewe can reach more than 120- 180 kg.

3. Reproductive performance: the first mating time of Jianyang big-eared ram is 8-9 months old, the first mating time of ewe is 6-7 months old, the estrus cycle is 20 days, the duration of estrus is 1-2 days, the pregnancy time is 146- 152 days, and the estrus interval is 70 days.

4. Feeding management mode: farmers in hilly areas adopt the method of captivity or combination of captivity, while farmers in mountainous areas mostly adopt the method of combination of captivity and captivity. There are sheep beds, sinks, food troughs and other facilities in the sheephouse, and the forage is mainly weeds, branches and leaves, vines, farmers' straws and artificially planted grass; The concentrate of supplementary feeding is mainly corn, wheat and wheat bran, and feed additives are added appropriately; Vaccination should be given twice a year to repel insects according to season to ensure the healthy development of big-ear sheep.