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Method for regulating daily ration of Simmental-Holstein crossbred cattle by creating body size growth curve

A growth curve and hybrid cattle technology, applied in climate change adaptation, animal husbandry, etc., can solve problems such as growth curves that have not been reported yet

Inactive Publication Date: 2020-01-10
天津市农业科学院
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The introduction of German Simmental cattle has been carried out in Tianjin for 4 years, and the bree

Method used

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  • Method for regulating daily ration of Simmental-Holstein crossbred cattle by creating body size growth curve
  • Method for regulating daily ration of Simmental-Holstein crossbred cattle by creating body size growth curve
  • Method for regulating daily ration of Simmental-Holstein crossbred cattle by creating body size growth curve

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Embodiment 1

[0032] The present invention statistically analyzes 704 pieces of body measurement data of the first generation of West-Holsh hybrid cows from birth to 24 months of age, and uses a nonlinear model for fitting to provide a growth curve model suitable for the West-Holsh hybrid cows. The purpose of the present invention is to determine the growth curve of the body size of the first generation of hybrid cows of German Simmental and Chinese Holstein cattle, and provide theoretical support for the feeding and management of West-Holster hybrid cattle. In order to achieve the above object, the present invention is an example of the first generation of hybrid cows of German Simmental cattle and Chinese Holstein cattle,

[0033] The detailed test method and effect are as follows:

[0034] 1. Data source

[0035] The data used in this patent comes from the Cattle Breeding Innovation Team of the Tianjin Institute of Animal Husbandry and Veterinary Medicine. The team has introduced frozen...

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Abstract

The invention discloses a method for regulating daily ration of Simmental-Holstein crossbred cattle by creating a body size growth curve. Production of Simmental-Holstein first-filial generation cattle is guided scientifically according to a scientific mathematical model, the composition of the daily ration of the Simmental-Holstein crossbred cattle is regulated, the pasture management level is improved, and the pasture production cost is reduced. The method has the advantages that a non-linear model is used for fitting the body size growth curve of the Simmental-Holstein crossbred cattle, a relationship between body size data of the Simmental-Holstein first-filial generation cattle and a non-linear equation for 0-24 months of age is used for establishing a relationship between body size and month age, the degree of fitting R2 of the curve is used for evaluating a curve fitting effect, and the closer R2 is to 1, the better the fitting effect can reflect the relationship between the body size and the month age of the Simmental-Holstein first-filial generation cattle; therefore, corresponding body size data is calculated according to the growth month age of the Simmental-Holstein first-filial generation cattle, growth and development rules of the Simmental-Holstein first-filial generation cattle are disclosed, and the reference basis is provided for breeding management of the Simmental-Holstein first-filial generation cattle.

Description

technical field [0001] The invention belongs to the technical field of growth and development of livestock and poultry, and in particular relates to a method for regulating diets of West-Dutch hybrid cattle by establishing body size growth curves. Background technique [0002] Since 2016, the production situation of the dairy industry has become increasingly severe. Small and medium-sized pastures have continuously withdrawn from dairy farming, which has caused a huge impact on the safety of the dairy industry. One of the main factors is that the variety of dairy cows in my country is too single. On the other hand, due to the lack of unified industry management in my country at present, the lack of completeness of seed selection, mating plan, breeding registration system, and production records, etc., seriously hinders the development of the cattle industry. [0003] Tianjin is an advantageous area for national milk production, and dairy farming accounts for more than one-th...

Claims

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Application Information

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IPC IPC(8): A01K67/02
CPCA01K67/02Y02A40/70
Inventor 马毅陈丽丽孙欢孙克佳
Owner 天津市农业科学院
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