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The population of dairy production, performed the insemination (AI: Artificial Insemination), which is the method of insemination has several advantages, such as reducing the time in breeding. Reduce costs and the number of farmers raising sires and mating can be made according to the season, etc. Best known issues about the insemination is found. The problem is caused by a combination of a primary worker. Without a thought to use the semen from sires With the use of the semen from sires in the original for a long time. Cause the effect that will happen later. It was found that the current problem is a problem and the problem of productivity of milk production has decreased in each version. So it is advisable to focus management together with breeding farms, including the selection of varieties to produce parents co substitution and mating system. Considering the milk production is the first to add the potential to raise dairy country in Thailand (Faculty of medicine, Niigata and Matsumoto mapop) Philipsson (1981) Report that the output quantity of milk is the most important feature is the first of the dairy farming. Second, the characteristics of selected species of perfection by the dairy, to serve as the parent species, and used for breeding have to take note of the information of the animal that is the measurement factors for the selection of the styles used for the evaluation of various styles including value suite.Ngotthiti introduction to genetic parameters, such as the rate of genetic (heritability, h2) and breeding (estimated breeding value, EBV), which is the value of a positive cumulative effect of genes (gene additive) can be estimated as the the figures for a comparison between an animal (wichai and faculty, 2548).Dairy mix in each time to get the semen from the participating cooperative from which the semen is taken in each ball as the semen from sires in the original version of the template is a combination of. As a result, within the dairy herd to mix the blood close. Causes for ions produced from dairy There is, for example, a study of the Wiggans and Vanraden (1995) found that the dairy breed of home birth rate and blood lottai close 0.026 percent increase per year (1960s-1999) and the rising chance which is consistent with the study of the Miglior et al (2000) the rate of 0.17 percent a year, caused blood to justify the increased 0.26 percentage (Miglior et al., 1995; et al., 2008, Casanova, 1992.Short et al., 1992;;; and Wiggans Vanraden et al., 1995, 1997; Krogmeier Smith et al., 1998; Goddard and Wiggans, 1999; 2000; Thompson et al., et al., 2003; Cassell Croquet et al., 1995; et al., and Bezdicek 2008) reported that the impact of a growing justification for blood within the dairy herd effect causes the output quantity of milk decreased by 10-1-60 kg range (approximately 305) milk fats in milk decreased 0.5-1.2 kg, and the quantity of protein in milk decreased 0.5-1.2 kilograms in each strain will have a different quantity.The problem on the yield of milk quantity. Most farmers don't have to write down the information on the varieties and quantity information on the history of the dairy the milk Board has a list of options on a daily basis. Causes of obstacles in developing and breeding dairy farmers to better understand, to take note of information concerning the dairy and milk, it is important first of dairy farming to raising dairy development. Cattle breeding and protection of damage from the effects of blood dilution close to affecting dairy farming. This study aims to study the impact of mixed blood, aligned within the dairy herd which features an output quantity of milk. To guide breeding dairy milk quantity and productivity
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