PURPOSE: A method to increase the meat amount of livestock and the degree of fat in muscles is provided to increase conservativeness and breeding rate of livestock with an excellent pedigree and to grow livestock of good quality through specification information containing the types, the content ratio and the provided amount of forage to raise the livestock. CONSTITUTION: A method to increase the meat amount of livestock is monitoring the growth state of the subjected livestock according to the ultra-wave data of the subjective livestock and contains a step that grows the subjected livestock segmenting the livestock into A type, B type, and C type according to the following equations. <；Equation>； A type: Y=a_1X-b_1, but, a_1<；1, 8<；=b_1<；=14. In this equation, X is more than 18 and Y is a positive number. B type: Y=a_2X-b_2, but, 1<；=a_2<；1.5, 18<；=b_2<；=23. In this equation, X is more than 18 and Y is positive. C type: Y=a_3X-b_3, a_3>；=1.5, 27<；=b_3<；=31. In this equation, X is more than 18 and Y is a positive number X is the age of months and Y is the thickness of fat on the back. In a method to increase the meat amount of livestock, an equation is as shown below. a_1=0.7343, b_1=11.49, a_2=1.194, b_2=0.475, a_3=1.6643 and b_3=29.374. [Reference numerals] (AA) Type A； (BB) Type B； (CC) Type C본 발명은 가축의 육량 및 근내 지방도를 증가시키는 방법에 관한 것이다.보다 자세하게는 대상 가축의 발육 상태를 모니터링하여 대상 가축을 사육하는 단계를 포함하는 가축의 육량을 증가시키는 방법에 관한 것이다. 이를 통하여, 우수한 혈통을 가지는 가축에 대한 보존성 및 번식율을 더욱 향상할 수 있다. 또한, 농가의 대상 가축을 성장시키기 위한 사료 종류, 사료 조성비 및 사료 제공량을 포함하는 사양 정보를 통하여 양질의 가축을 사육할 수 있다.
