Method for efficient reproduction of yaks and production of dzos

Abstract

The invention discloses a method for efficient reproduction of yaks and production of dzos. Through group management, nutrition control, oestrus identification and artificial insemination, the femaleyaks can resume the oestrus cycle in an oestrus season to achieve oestrus, mating and conception, a feed supplement standard and an efficient reproduction mode are planned for the female yaks different in reproductive conditions, the estrus rate of the yaks and the dzo conception effect are improved, the production of the dzos is accelerated, the technical and industrial development of efficient breeding of dzos is promoted, thus the problems are solved that the yaks in china are low germplasm performance and the breeding efficiency is low, and the healthy and green development of ecological breeding of the yaks and the dzos in the vast pastoral areas of the Tibet plateau is facilitated.

Description

technical field

[0001] The invention belongs to the technical field of cattle breeding, and in particular relates to a method for efficient breeding and production of yaks. Background technique

[0002] In recent years, the crossbreeding and improvement of yaks with small dairy cattle breeds Jersey and Angus beef cattle with smaller heads have achieved remarkable results, and the dystocia rate of the first generation of hybrid P cattle has been significantly reduced, and the survival rate of calves has increased. With different degrees of improvement, the adaptability and production performance of the offspring have good performance.

[0003] There are a large number of native yellow cattle and the hybrid offspring of Simmental, Holstein and cattle in the agricultural areas and semi-agricultural and semi-pastoral areas of Qinghai Province. Over the years, there are mainly two production technology schemes for Pian cattle, one is to use local cattle Wait for the hybrid offsp...

Examples

Embodiment

[0037] A method for efficient breeding and production of yaks provided by a preferred embodiment of the present invention, comprising:

[0038] Organize 100 female yaks for production (registration and ear tagging, if there is a net fence, double ear tagging is recommended and the physical characteristics of the yaks should be registered in detail). Reproductive disease of dry bar cows. Feed in separate groups, independent pastures, away from the herds of bulls in summer pastures, with rich pastures and sufficient water sources. (The specific quantity depends on the pasture and the scale of breeding)

[0039] Four uncastrated bulls were selected as trial bulls at the age of three, and the test cloth was sewed. Using the side skirt hair of the bull, weave the test cloth at the place 10 centimeters before the exit of the penis under the body and wrap it backwards, tie the ropes on both sides, tie a knot on the back and fasten it firmly. The key of the test cloth is the front s...

experiment example

[0051] Carry out the method for producing P cattle by yak high-efficiency breeding of the present invention and carry out P cattle production experiment, experimental result is as follows:

[0052] 1. The experiment of calving female yaks in the same year to produce Angus cattle

[0053] Table 1 The results of the experiment on the production of Angus cattle by calving female yaks in the current year

[0054]

[0055] a, b indicate that the values ​​with different superscripts in the same column are very significantly different (P<0.01)

[0056] The results shown in Table 1 above show that the experimental group adopts the method for efficient breeding of yaks of the present invention to produce yaks. Compared with the control group, the estrus rate, conception rate, calving rate and calf survival rate of calving female yaks in the experimental group in the same year They were 67.50%, 61.67%, 56.67% and 95.59%, and increased by 38.33%, 35.83%, 35.83% and 11.59%, respective...

technical field

[0001] The invention belongs to the technical field of cattle breeding, and in particular relates to a method for efficient breeding and production of yaks. Background technique

[0002] In recent years, the crossbreeding and improvement of yaks with small dairy cattle breeds Jersey and Angus beef cattle with smaller heads have achieved remarkable results, and the dystocia rate of the first generation of hybrid P cattle has been significantly reduced, and the survival rate of calves has increased. With different degrees of improvement, the adaptability and production performance of the offspring have good performance.

[0003] There are a large number of native yellow cattle and the hybrid offspring of Simmental, Holstein and cattle in the agricultural areas and semi-agricultural and semi-pastoral areas of Qinghai Province. Over the years, there are mainly two production technology schemes for Pian cattle, one is to use local cattle Wait for the hybrid offsp...

Examples

Embodiment

[0037] A method for efficient breeding and production of yaks provided by a preferred embodiment of the present invention, comprising:

[0038] Organize 100 female yaks for production (registration and ear tagging, if there is a net fence, double ear tagging is recommended and the physical characteristics of the yaks should be registered in detail). Reproductive disease of dry bar cows. Feed in separate groups, independent pastures, away from the herds of bulls in summer pastures, with rich pastures and sufficient water sources. (The specific quantity depends on the pasture and the scale of breeding)

[0039] Four uncastrated bulls were selected as trial bulls at the age of three, and the test cloth was sewed. Using the side skirt hair of the bull, weave the test cloth at the place 10 centimeters before the exit of the penis under the body and wrap it backwards, tie the ropes on both sides, tie a knot on the back and fasten it firmly. The key of the test cloth is the front s...

experiment example

[0051] Carry out the method for producing P cattle by yak high-efficiency breeding of the present invention and carry out P cattle production experiment, experimental result is as follows:

[0052] 1. The experiment of calving female yaks in the same year to produce Angus cattle

[0053] Table 1 The results of the experiment on the production of Angus cattle by calving female yaks in the current year

[0054]

[0055] a, b indicate that the values ​​with different superscripts in the same column are very significantly different (P<0.01)

[0056] The results shown in Table 1 above show that the experimental group adopts the method for efficient breeding of yaks of the present invention to produce yaks. Compared with the control group, the estrus rate, conception rate, calving rate and calf survival rate of calving female yaks in the experimental group in the same year They were 67.50%, 61.67%, 56.67% and 95.59%, and increased by 38.33%, 35.83%, 35.83% and 11.59%, respective...

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