Abstract
This study was conducted to investigate the interaction of aflatoxin B$_1$($AFB_1$) and vitamin D$_3$($VD_3$) in broiler chicks. The 336 broiler chicks(Hubbard line) of equally mixed sex were allocated to triplicate 8(2$\times$4 factorial) treatment groups. The 0 or 1ppm of AFB$_1$and 0, 500, 1,000 or 1,500IU/kg of VD$_3$ were supplemented to the basal diet Fourteen broilers of equally mixed sex were allocated to each replica and 24 groups were arranged in a randomized block design After 3 weeks of feeding the metatarsus were collected from the right and left legs of 4 chicks (2 for each sex) per group. The bone ash and minerals were measured. 1. In respect to the fresh weight of metatarsus bone no significant difference was found between 0 and 1ppm $AFB_1$ treatments, however, decreasing trend was recognized when fed increasing level of $VD_3$(P＜.01). 2. The ash content in non－fat dry metatarsus bone decreased when fed 1ppm $AFB_1$(P＜.01). However, that increased according to the increasing amount of $VD_3$(P＜.01). Although there was no interaction between $AFB_1$ and $VD_3$ it was shown that the 1500IU/kg of $VD_3$ was neccessary to cover the decrease in ash content of metatarsus. when fed 1ppm of $AFB_1$. 3. The Ca contents in metatarsus were not influenced by feeding $AFB_1$ but an increasing trend was verified by feeding increasing levels of $VD_3$(P＜.05). 4. The P content decreased as $AFB_1$ was fed(P＜.01), while no response was found when fed'different levels of $VD_3$ 5. The Cu content decreased when fed $AFB_1$(P＜.05). 6. The Na, Mg, K, Zn, Fe and Mn contents were not affected by feeding $AFB_1$ and /or $VD_3$.
Aflatoxin $B_1$($AFB_1$ 0 또는 1ppm)과 Vitamin $D_3$($VD_3$0, 500, 1,000 또는 1,500IU/kg)의 교호작용을 조사코자, Hubbard계통 broiler 병아리 336수를 이용, 2$\times$4 요인시험이 실시되었으며, 전체8처리가 3반복으로 설계되어 탈지건조 중족골의 회분 및 무기물함량과 중량 등을 측정하였다. 얻어진 결과를 요약하면 다음과 같다. L 중족골의 신선중량에 있어서 $AFB_1$ 급여에 의한 차이는 나타내지 않았으며 $VD_3$의 수준이 증가됨에 따라 감소되는 경향을 보였다(P＜.01). 2. 탈지건조 중족골의 회분함양을 보면 $AFB_1$의 급여로 인하여 감소되었으며(P＜.01), $VD_3$수준이 증가될 때 반대로 증가되었다(P＜.01). 교호효과는 인정되지 않았으나 $AFB_1$ 1ppm 급여로 인한 회분감소를 극복하기 위하여 $VD_3$ 1,500IU/kg의 급여가 필요하다는 것이 증명되었다. 3. Ca의 함양은 AFB$_1$급여의 영향을 받지 않았으나 $VD_3$에 의하여 증가되는 경향을 보였다(P＜0.05). 4. P의 함양은 $AFB_1$급여로 감소되었으나(P＜.01) $VD_3$의 영향은 없었다. 5. Cu의 함양은 AFB$_1$$AFB_1$에 의하여 감소되었다(P＜.05). 6. Na Mg, K, Zn, Fe 및 Mn의 함량은 $AFB_1$이나 $VD_3$에 의하여 영향을 받지 않았다.