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논문 기본 정보

자료유형
학술저널
저자정보
문준영 (강원대학교 동물생명과학대학) 이창번 (강원대학교 동물산업융합학과) Abdolreza Hosseindoust (강원대학교) Sang Hun Ha (Kangwon National University) Habeeb Tajudeen (Kangwon National University) Jin-Soo Kim (Kangwon National University)
저널정보
한국축산학회(구 한국동물자원과학회) 한국축산학회지 한국축산학회지 제64권 제5호
발행연도
2022.9
수록면
871 - 884 (14page)

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초록· 키워드

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Two experiments were conducted to evaluate the effects of calcium (Ca) levels in weanlingpigs (Landrace × Yorkshire × Duroc). In experiment 1, one hundred and eighty weanling pigswere randomly allotted to one of the three treatments. The treatments were low (Ca 0.60% inphase 1 and 0.50% in phase 2), standard (Ca 0.72% in phase 1 and 0.66% in phase 2), andhigh (Ca 0.84% in phase 1 and 0.72% in phase 2). In experiment 2, hundred and forty weanlingpigs were randomly assigned to one of four treatments differing in Ca levels (high andlow) and sources (CaCl2 and CaCO3) in a 2 × 2 factorial arrangement. There were 10 pigsper replicate in both experiments, with 6 replicates in each treatment, and they were conductedin two phases (phase 1, days 0–14; phase 2, days 15–28). In experiment 1, body weight(BW), average daily gain (ADG), and growth to feed ratio (G/F) increased as the Ca leveldecreased (p < 0.05). P digestibility was higher in the low-Ca diet group than in the high-Cadiet group (p <0.05). In experiment 2, the final BW, ADG, and G/F increased in the CaCl2 dietgroup compared with the case in the CaCO3 diet group (p < 0.05). The digestibility of crudeprotein (CP), Ca, and P was higher in the CaCl2 diet group than in the CaCO3 diet group (p <0.05). Cl− levels were higher in the CaCl2 diet group than in the CaCO3 diet group (p < 0.05). The bicarbonate (HCO3−), base excess (BE), and electrolyte balance (EB) levels were lowerin the CaCl2 diet group than in the CaCO3 diet group (p < 0.05). Hematocrit increased as theCa level decreased (p < 0.05). The HCO3− interacted with the Ca sources and thus, affectedthe Ca levels (p < 0.05). Bone ash, Ca, and P were downregulated in the low-Ca diet groupcompared with the case in the high-Ca diet group. Overall, the low dietary Ca supplementationled to greater growth performance. Furthermore, CaCl2 appeared to be a better Casource than CaCO3 because of the greater digestibility of CP, Ca, and P, and improved EB.

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