Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for making frozen spermatozoon of yak

A production method and a technology of freezing semen, which are applied in medical science, veterinary instruments, animal delivery, etc., can solve the problems of high cost of live cattle introduction, loss of good genes, and short service life, and overcome the problems of ecology and feeding management. Difficulty, prevention of crossbreeding, and high fertilization rate

Inactive Publication Date: 2005-06-29
甘孜州家畜改良站
View PDF0 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, Jiulong yaks are prone to inbreeding in mixed grazing, which leads to the loss of good genes. In addition, the cost of introducing live cattle is high, and the management difficulties brought about by wild animals and the use period are short.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] Three breeding bulls were selected from the ranch in Hongba Township, Jiulong County, and their parentage and descendants were investigated, and their body size and appearance were measured. See Table 1 for details.

[0068] serial number

[0069] Unit: cm, kg

[0070] After more than 30 days of hard work, the technicians have achieved the purpose of semen collection. All the technical indicators of the semen have met the requirements, and the vitality after thawing is between 0.3-0.5. See Table 2 for details. The deformity rate was calculated by staining the semen smear with 0.5% Congo red alcohol solution.

[0071] serial number

[0072] The semen collected above has been made into frozen semen granules according to the method of the present invention, as shown in Table 3, wherein the diluent adopts glucose-yolk liquid.

[0073] make up

[0074] 2

[0075] The results showed that all technical indicators met the requirements,...

Embodiment 2

[0077] Three breeding bulls were selected from the pasture in Tanggu Township, Jiulong County. Semen was collected 15 times, 10 times successfully, and 8 times met the requirements for making frozen semen. A total of 689 granular frozen semen were produced. See Table 4 for details. The deformity rate was calculated by staining the semen smear with 0.5% gentian violet alcohol solution. The yak number 1 is 3.5 years old, the yak number 2 is 8 years old, and the yak number 3 is 5 years old.

[0078] make up

No

ejaculation volume

(ml)

color

the smell

PH value

Density (billion

/ ml)

Survival rate

Deformation rate%

Remark

once

secondary

1

2.0

light red

fishy smell

bloody urine

2

2.5

milky white

none

0.80

There is dirt

3

3.0

milky white

none

6.5

15.3

0.75

1...

Embodiment 3

[0083] Selected 3 breeding bulls from Yajiageng Ranch in Yulin Township, Kangding County, collected semen 25 times in total, 20 times successfully, and 17 times met the requirements for making frozen semen. A total of 1027 granular frozen semen were produced, 42 of which did not meet the requirements According to the breeding requirements, 985 frozen semen that meet the breeding requirements were obtained.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a method for making frozen spermatozoon of yak which comprises the steps of, (1) preparing dilution liquid, (2) diluting with water, (3) balancing, (4) drop freezing. The prepared yak freeze sperm has the survival rate of 0.3-0.5 after unfreezing.

Description

technical field [0001] The invention relates to a method for making frozen essence of animals, in particular to a method for making frozen essence of yak. Background technique [0002] Yak is an excellent breed of cattle in my country, and Jiulong yak is the best breed of yak for meat in my country. It is famous both at home and abroad for its large body, good meat production performance, and stable genetic performance. However, Jiulong yaks are prone to inbreeding in mixed grazing, which leads to the loss of good genes. In addition, the cost of introducing live cattle is high, and the management difficulties caused by wild animals and the short lifespan are short. Artificial insemination with frozen semen has become an advanced technology for livestock breeding and breed protection in the past 30 years, but cryopreservation of yak semen has always been a blank. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): A01K67/02A01K67/027A61D19/00
Inventor 马绪融张洪波张永成阿农呷马树荣王平陈建斌毛进斌
Owner 甘孜州家畜改良站
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com