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육성 비육돈을 위한 항생제 무첨가 사료개발을 위한 연구
한인규,김진동,한영근,고태구 한국영양사료학회 1999 韓國營養飼料學會誌 Vol.23 No.4
본 시험은 fructooligosaccharide, chitosan 그리고 NIS와 항생제를 비교하여 육성돈 (실험 I)과 비육돈 (실험 II)의 성장, 영양소 소화율, 영양소 배설량 그리고 도체특성에 미치는 영향을 조사하고 육성·비육돈을 위한 항생제 무첨가 사료를 개발하기 위하여 평균체중 20.1±0.43㎏ (실험 I)와 53.8±0.76㎏ (실험 II)의 육성·비육돈 150마리를 각각 공시하였다. 처리구는 다음과 같다. 1) Antibiotic (basal diet + 0.05% chlortetracycline). 2) Anti-Free (basal diet), 3) FOS (basal diet + 6% fructooligosaccharides), 4) Chitosan (basal diet + 0.3% chitosan) and 5) NIS (baal diet + 30g/㎏ Nonspecific Immunostimulating Anionic Alkali Solution). 실험 I과 II의 처리구는 각각 6반복, 반복당 5두씩으로 구성되어 있다. 실험 I에서 일당중체량과 일당사료섭취량은 Antibiotic 처리구가 다른 처리구보다 높았다. 그러나 유의적인 차이는 보이지 않았다. 그리고 FOS 처리구가 가장 효율적인 성장을 보였다. 영양소 소화율과 배설량에서는 인 소화율을 제외하고는 처리구간에 유의적인 차이가 없었다. 비육기동안 (실험 II)에도 Antibiotic 처리구가 가장 성장 성적이 좋았으며 (P<0.05), 사료효율도 가장 좋았다. 그러나, Chitosan과 NIS 처리구는 Antibiotic 처리구와 비교하여 유의적으로 성장이 떨어지지는 않았다. 비육 전기와 후기에 영양소 소화율은 조회분 소화율을 제외하고는 처리구간에 유의적인 차이를 발견할 수 없었다. 도체성적에서, Antibiotic 처리구가 도살체중, 도체중 그리고 도체등급에서 성적이 가장 좋았으며, 도체율과 등지방 두께는 Chitosan 처리구가 가장 좋았다. 전체적으로 보면, 본 시험에서 항생제 첨가구가 가장 좋은 성적을 보였으나 fructooligosaccharides와 chitosan을 첨가한 처리구는 항생제 첨가구에 비해 성적이 유의적으로 떨어지지는 않았다. 따라서, fructooigosaccharides와 chitosan은 항생제를 대체할 수 있는 물질로서 그 가능성을 인정 받았다고 할 수 있을 것이다. 150 three cross-bred ((Landrace × Large White) × Duroc) pigs with average body weight of 20.1 ± 0.43㎏ (experiment I) and 53.8 ± 0.76㎏ (experiment II) were used as experimental subjects respectively. Pigs were allocated to the treatments in completely randomized block design based on body weight. Treatments were 1) Antibiotic (basal diet + 0.05% chlortetracycline), 2) Anti-Free (basal diet), 3) FOS (basal diet + 6% fructooligosaccharides), 4) Chitosan (basal diet + 0.03% chitosan) and 5) NIS (basal diet + 0.3 Nonspecific Immunostimulating Anionic Alkali Solution). Each treatment had 6 replicates with 5 pigs per replicate. In experiment I, ADG and ADFI were higher in Antibiotic group than others, but there were no significant differences, and pigs fed FOS grew more efficiently. Nutrients digestibility and excretion were not significantly different among all treatments except P digestibility. During finishing period (experiment II), pigs fed Antibiotic showed best ADG (P<0.05), and grew more efficiently than others. But, pigs fed Chitosan and NIS were not significantly different with Antiobiotic group in ADG during entire experimental period. Among all treatments, nutrients digestibility was not significantly different, except crude ash digestibility during early and late finishing period. And, FOS group showed best result on nutrients excretion during early finishing period. In carcass characteristics, pigs fed Antibiotic showed highest slaughter weight, carcass weight and carcass grade. Carcass percentage and backfat thickness were better in pigs fed Chitosan. In these study, antibiotic supplementation showed the best growing performance, but not significantly different in pigs fed fructooligosaccharides and chitosan. So, from these results, it may be concluded that fructooligosaccharides and chitosan have possibility as alternative substances of antibiotics in the diets of growing and finishing pigs.
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한인규,김진동,한영근,고태구 한국축산학회 2000 한국축산학회지 Vol.42 No.1
An experiment was conducted to determine the effect of mannanoligosaccharide, yucca extract and β-glucan on growth performance, nutrients digestibility and amino acid digestibility and to develop antibiotics-free diet in growing pigs. A total of 150 crossbred pigs ((Landrace×Large White)×Duroc) initially averaging 19.09 ㎏ BW were used in this experiment for 42 days. The five dietary treatments were Antifree group (negative control, basal diet), Anti group (positive control, basal diet + 0.04% chlortetracycline, CTC-125^ⓡ JEIL VET. CHEM. Co. Ltd., CTC), MOS group (basal diet + 0.1% mannanoligosaccharide, BIO-MOS^ⓡ, Alltech Inc.), YE group (basal diet + 0.0125% yucca extract, Fibergest^ⓡ, P. S. F Organic Inc.) and GLC group (basal diet + 0.1% β-glucan, Macrogard^ⓡ, Biomaczymal Co., Norway). During day 0∼14, although there were no significant differences, Anti goup showed numerical advantage in the average daily gain (ADG) and feed conversion ratio (FCR) compared to other treatments. During day 15∼28, Anti group also showed numerical improvement in weight gain and FCR compared to other treatments. During day 29∼42, Antifree group showed lower average daily feed intake (ADFI) than MOS group (P$lt;0.05). During day 0∼42, Antifree group also showed lower ADFI than MOS group (P$lt;0.05). Anti group showed lower FCR than MOS group (P$lt;0.05). Among all the treatments, there were no significant differences in the digestibility of dry matter, gross energy, crude protein and crude fat. However MOS group improved (P$lt;0.05) the phosphorus and ash digestibility. The digestibility of essential amino acids was significantly affected (P$lt;0.05) by treatments except that of threonine, leucine and lysine. The digestibility of non-essential amino acids was significantly affected by treatments except that of glutamate, alanine and total non-essential amino acid (P$lt;0.05). Total feed cost per total weight gain was lower in Anti group than MOS and GLC group (P$lt; 0.05). YE group also showed lower (P$lt;0.05) TFC/TWG compared Eo MOS and GLC groups.
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한인규,김진동,배수한,한영근,고태구 한국축산학회 2000 한국축산학회지 Vol.42 No.1
An experiment was conducted to determine the effect of mannanoligosaccharide, yucca extract, β-glucan and organic acid on growth performance, nutrients digestibility and amino acid digestibility in pigs weaned at 21 days of age. One hundred and eighty piglets (5.82 ㎏ average body weight, average 28 d of age) weaned at 21 days old were assigned to six treatments, which were Antifree group (basal diet), Anti group (basal diet + 120 ppm chlortetracycline, CTC-125^ⓡ, JEIL VET. CHEM. Co. Ltd.), MOS group (basal diet + 0.2% mannanoligosaccharide, BIO-MOS^ⓡ, Alltech Inc.), YE group (basal diet + 0.012% yucca extract, Fibergest^ⓡ, P. S. F Organic Inc.), GLC group (basal diet + 0.2% β-glucan, Macrogard^ⓡ, Biomaczymal Co.) and CAL group (basal + 1% organic acid, Calprona-P^ⓡ, Verdugt B. V.). Each treatment has 6 replicates with 5 piglets in each replicate. During day 0∼14, there were no significant differences in ADG, ADFI and FCR among treatments. During day 15∼42, there were no significant differences in ADF and ADFI among treatments. In this period, Antifree group showed higher (P$lt;0.05) FCR compared with CAL group. Overall, there were no significant differences in ADG and ADFI. In addition, Antifree group showed lower (P$lt;0.05) FCR compared with GLC and CAL groups (P$lt;0.05). There were no significant differences in all nutrients digestibility, essential and non-essential amino acids digestibility among treatments. Total feed cost was lower in YE group compared with GLC group (P$lt;0.05). GLC group showed higher (P$lt;0.05) total feed cost per total weight gain compared with other treatments except CAL group.
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배국환(K . H . Bae),고태구(T . G . Ko),김지훈(J . H . Kim),조원탁(W . T . Cho),한영근(Y . K . Han),한인규(In K . Han) 한국축산학회 1999 한국축산학회지 Vol.41 No.1
This study was conducted to develop an antibiotic-free diet for finishing pigs. A total of 150 crossbred pigs (Landrace x Duroc x Large White) initially averaging 68.0 ㎏ BW were used in this experiment. Pigs rare allotted into 5 treatments based on body weight and sex. The five dietary treatments were negative control (basal diet), positive control (basal diet + 0.04% chlortetracycline, CTC-125^ⓡ JEIL VET. CHEM. Co. Ltd.), MOS group (basal diet + 0.1% mannanoligosaccharide, BIO-MOS^ⓡ Alltech Inc.), YE group (basal diet + 0.0125% yucca extract, Fibergest^ⓡ P. S. F Organic Inc.) and GLU group (basal diet + 0.1% β-glucan, Macrogard^ⓡ JEIL VET. CHEM. Co. Ltd.). During phase I, pigs fed diets containing YE showed the best average daily gain (ADG), which is significantly higher than that of pigs fed the antibiotic-free or GLU diet, while there were no significant differences in ADG, ADFI and F/G among other treatments. Pigs fed antibiotics showed better feed utilization than pigs fed the antibiotic-free diet (P$lt; 0.10). Overall, ADG of pigs fed the YE diet was the best and that of pigs fed GLU was the worst. Pigs fed antibiotics showed better feed utilization (P$lt; 0.10) than pigs fed the antibiotic-free diet and pigs fed additive supplemented diets (YE, MOS, GLU) tended to show better feed utilization (p = 0.11). There were no significant differences in nutrient digestibilities and carcass traits among treatments.
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