PURPOSE: A stock feed composition containing a blend of 5-aminolevulinic acid and fermented chitosan is provided to offer good growth rate and immunity by developing an ALA- fermented chitosan blend as a substitute of antibiotics. CONSTITUTION: A stock feed composition contains 5-aminolevulinic acid and a compounding agent of a fermented chitosan blend as active components. The coupling agent of 0.1~0.2 weight% is added in fodder. The basic feed includes corn 45.23 parts by weight, soybean meal 26.07 parts by weight, whey 16 parts by weight, fish meal 5.00 parts by weight, beef tallow 3.00 parts by weight, calcium phosphate 1.16 parts by weight, molasse 2.5 parts by weight, salt 0.25 parts by weight, vitamin premix 0.12 parts by weight mineral premix 0.10 parts by weight and antioxidant 0.05 parts by weight.본 발명은 5-아미노레불린산(ALA)과 키토산 발효물의 합제를 유효성분으로 함유하는 가축사료 조성물에 관한 것으로, 더욱 상세하게는 5-아미노레불린산(ALA)과 키토산 발효물의 합제를 유효성분으로 함유하는 면역력 증진 및 항생제 대체용 가축사료 조성물 및 상기 가축사료 조성물을 포함하는 가축사료에 관한 것이다.
