• 생명과학회지
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• 제22권7호
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• pp.928-935
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• 2012

본 연구는 동물성지방 대체물질로서 홍화씨(Carthamus tinctorius L.)의 첨가가 분쇄돈육의 이화학적 품질특성에 미치는 영향을 검토하였다. 분쇄돈육은 돈육등심 68%, 냉수 10%, 소금 2%에 돼지지방 20%(control), 돼지지방 10%와 홍화씨 10%(10% SS) 그리고 홍화씨 20%(20% SS)를 첨가하여 제조하였다. 생육 및 가열육의 수분, 단백질 및 회분함량은 20% SS가 가장 높았고, 지방함량은 대조군이 가장 높았다(p<0.05). 수율, 수분보유율, 지방보유율 및 보수력은 20% SS가 가장 높았으며, 직경감소율은 대조군이 가장 높았다. 외부 및 내부의 명도(L-value), 적색도(a-value) 및 황색도(b-value)는 대조군이 10% SS 및 20% SS보다 유의하게 높았다(p<0.05). 콜레스테롤 함량은 대조군, 10% SS 및 20% SS가 각각 50.85, 21.77 및 17.91 mg/100 g으로 20% SS가 가장 낮았다(p<0.05). Linoleic acid 함량은 대조군, 10% SS 및 20% SS가 각각 28.68%, 41.04% 및 54.26%이었다. 전체 불포화지방산 함량은 대조군, 10% SS 및 20% SS가 각각 50.53%, 55.76% 및 64.93%이었다. 지방산 조성에서 linoleic acid 및 전체 불포화지방산 함량은 20% SS가 가장 높았다(p<0.05). 아미노산 조성은 시료들 사이에 유의한 차이가 없었다.

• 한국식품과학회지
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• 제28권4호
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• pp.668-672
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• 1996

10% 지방육은, 풍미, 단단함을 제외하고는 대체로 좋지 않은 것으로 나타났고 10% 지방에 재고미 5%를 첨가한 육은 풍미, 입자 크기, 단단함, 전반적 적성은 좋게, 다즙성, 연도는 재고미의 첨가량이 더 많은 육과 30% 지방육에 비해 낮은 것으로 나타났다. 10% 지방에 10% 또는 20%의 재고미가 첨가된 육은 다즙성, 연도, 입자 크기, 전반적 적성은 좋게, 풍미, 단단함 등은 낮게 나타났으며 30% 지방육은 풍미, 다즙성, 연도, 단단함은 좋게, 입자 크기, 전반적 적성은 좋지 않게 나타났다. 결론적으로 재고미를 다량(20%) 혼입하는 것은 전반적 적성을 감소시켰지만 5% 혹은 10% 수준의 재고미를 혼합하는 것은 재고미의 적절한 소비를 꾀하면서 열량 감소, 지방 제거시 잃기 쉬운 육의 풍미, 다즙성, 전반적 적성의 유지 등 좋은 효과를 얻을 수 있었다. 관능 검사 결과 10% 지방에 5%와 10%의 재고미가 첨가된 우육이 좋은 평가를 받은 것은 근래 지방 섭취량을 줄이고자 하는 추세에 맞추어 큰 호응이 있을 것으로 기대된다.

• Asian-Australasian Journal of Animal Sciences
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• 제30권10호
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• pp.1425-1434
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• 2017

Objective: The main objective of this study was to determine the effect of different diets for early-weaned (EW) calves on rumen development, and how this affects fat deposition in the longissimus dorsi of adult Korean Hanwoo beef cattle. Methods: Three EW groups were established (each n = 12) in which two- week-old Hanwoo calves were fed for ten weeks with milk replacer+concentrate (T1), milk replacer+concentrate+roughage (T2), or milk replacer+concentrate+30% starch (T3); a control group (n = 12) was weaned as normal. At six months, 5 calves of each group were slaughtered and their organs were assessed and rumen papillae growth rates were measured. The remaining calves (n = 7 in each group) were raised to 20 months for further analysis. Results: Twenty-month-old EW calves had a higher body weight (BW), backfat thickness (BF), longissimus dorsi muscle area (LMA) and intramuscular fat (IMF) than the control (p<0.05). Organ growth, rumen histology, and gene expression patterns in the 6-month-old calves were positively related to the development of marbling in the loin, as assessed by ultrasound analysis (p<0.05). In the group fed the starch-enriched diet (T3), higher BW, BF, LMA, and IMF were present. The IMF beef quality score of 20-month-old cattle was 1+ for the T2 and T3 diets and 1 for the T1 diet (p<0.05). Conclusion: Papillae development was significantly greater in calves fed on high-concentrate diets and this may have resulted in the improved beef quality in the EW dietary groups compared to the control.

• 한국양식학회지
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• 제10권2호
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• pp.153-161
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• 1997

본 연구는 잉어 사료의 어분 대체사료원으로서 피혁분과 육골분의 이용 가능성과 어분단백질 대체 범위를 결정하고 잉어용 어분대체품 개발의 기초자료를 제공하고자 실시되었다. 본 실험사료의 단백질원으로 동물성으로는 북양어분(White Fish Meal, WFM), 피혁분(Leather Meal, LM), 육골분(Meat & Bone Meal, MBM)을 식물성으로는 대두박(Soybean Meal, SM), 콘글루텐밀(Corn Gluten Meal, CGM)을 사용하였고, 조단백질 함량은 39.5%, 가용성 에너지는 15.3 KJ/g으로 동일하게 맞추었고, 실험사료내의 어분대체 비율은 다음과 같다 : diet 1 (대조구), 100% white fish meal (WFM, control) : diet 2, 75% WFM+25% leather meal (LM) : diet 3, 50% WFM+50% LM : diet 4, 75% WFM+25% meat and bone meal (MBM) : diet 5, 50% WFM+50% MBM. 일주간의 먹이붙임후에 잉어는 각 실험군별 평균어체중 10 g이 되도록 하여 3반복으로 무작위 배치하였고, 첫 번째와 두 번째 4주간의 사육기간이 끝난 8주후에는 평균어체중이 28 g이 되도록 재배치하여 세 번째 4 주간동안 사육하였다. 사료는 1일 3회 어체중의 2.7-4%로 12주간 공급하였다. 첫 번째와 두 번째 4주후 사료 1(대조구)과 2의 증체율은 유의적 차이가 없었으나(P>0.05), 사료 3, 4, 5는 대조구보다 유의적으로 낮았다(P<0.05). 이와는 달리 세 번째 4주후에 있어서는 대조구와 비교하여 전 사료구에서 유의적인 차이가 없었다(P>0.05). 전어체 일반성분 분석결과, 8주의 수분과 12주의 조지방을 제외하고는 모든 사료구의 일반성분치(수분, 조단백, 조지방, 조회분)에 있어서 유의적 차이가 없었다(P>0.05). 본 실험 결과, 사료내 동물성 단백질원으로 피혁분과 육골분은 충분한 먹이붙임후에 어분단백질의 50%까지 대체 가능함을 보여 주었다.

• 한국식품영양과학회지
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• 제30권5호
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• pp.858-864
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• 2001

젖산나트륨과 복합지방대체제가 저지방 볼로나의 품질과 냉장 중 저장안정성에 미치는 영향에 관하여 조사하였다. 유화형 볼로나를 대조구로 하여 일반성분을 분석한 결과 수분 600%, 지방 22% 및 단백질 함량이 12.4%를 함유하는, 반면 저지방 볼로나는 수분 73~76%, 지방 ~2% 및 단백질함량이 14~15%로 기존의 유화형 볼로나에 비하여 고단백, 저지방 소시지이었다. 저장 중 유화형 및 저지방(<3%) 볼로나의 유리수분량과 진공감량이 증가함에 따라 조직의 경도가 감소하였고(p<0.05), 총균수는 증가하였으나, 냉장 8주에 모두 가식 부위에 있었다. 젖산나트륨과 지방대체제를 첨가한 저지방 볼로나가 기존의 유화형 볼로나에 비해 가열 감량이 낮았으며(p<0.05) 경도를 비롯한 조직감은 높았다. 저지방 볼로나는 젖산나트륨의 첨가량이 증가할수록 유리수분량과 경도가 증가하였고, TBA값은 오히려 낮은 결과를 보여주었다. 냉장저장 중 젖산나트륨의 첨가에 따른 총균수에 영향이 나타났으며, 3.3% 젖산나트륨을 첨가한 처리구는 처리하지 않은 처리구보다 미생물의 성장억제 작용이 현저했다. 결론적으로 복합 지방대체제를 첨가한 저지방 볼로나의 젖산나트륨의 첨가량에 딸라 품질에 영향을 미쳤으며, 총균수와 TBA값을 낮출 수 있었다. 차후의 연구로 저지방 소시지에서 오염될 수 있는 Listeria monocytogenes 등과 같은 특정균을 일정균수($10^3$CFU/g) 접종함으로써 젖산나트륨의 특정미생물억제 효과에 관한 연구가 필요하다고 사료된다.

• 한국양식학회:학술대회논문집
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• 한국양식학회 2006년도 수산관련학회 공동학술대회 발표요지집
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• pp.330-331
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• 2006

• Asian-Australasian Journal of Animal Sciences
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• 제29권6호
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• pp.865-871
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• 2016

The objective of this study was to investigate the effects of canola and flaxseed oils on the physicochemical properties and sensory quality of emulsion-type sausage made from spent layer meat. Three types of sausage were manufactured with different fat sources: 20% pork back fat (CON), 20% canola oil (CA) and 20% flaxseed oil (FL). The pH value of the CA was significantly higher than the others (p<0.05). The highest water holding capacity was also presented for CA; in other words, CA demonstrated a significantly lower water loss value among the treatments (p<0.05). CA had the highest lightness value (p<0.05). However, FL showed the highest yellowness value (p<0.05) because of its own high-density yellow color. The texture profile of the treatments manufactured with vegetable oils showed higher values than for the CON (p<0.05); furthermore, CA had the highest texture profile values (p<0.05) among the treatments. The replacement of pork back fat with canola and flaxseed oils in sausages significantly increased the omega-3 fatty acid content (p<0.05) over 15 to 86 times, respectively. All emulsion sausages containing vegetable oil exhibited significantly lower values for saturated fatty acid content and the omega-6 to omega-3 ratios compared to CON (p<0.05). The results show that using canola or flaxseed oils as a pork fat replacer has a high potential to produce healthier products, and notably, the use of canola oil produced characteristics of great emulsion stability and sensory quality.

• Asian-Australasian Journal of Animal Sciences
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• 제24권5호
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• pp.643-649
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• 2011

The objective of this study was to determine the effect of feeding direct-fed microbials (DFM) on the growth performance and prophylaxis of calf diarrhea during the pre-weaning period as an alternative to antibiotics. A multi-species DFM was formulated including three lactic acid bacteria (Lactobacillus salivarius Ls29, Pediococcus acidilactia Pa175, and L. plantarum Lp177), three Bacillus strains (B. subtilis T4, B. polymyxa T1 and SM2), one yeast, Saccharomyces boulardii, and a nonpathogenic E. coli Nissle 1917. Lactic acid bacteria and Bacillus strains were selected based on the antibacterial activity against various animal pathogens, especially pathogenic E. coli using agar diffusion methods in vitro. Test and control groups were fed milk replacer and calf starter supplemented with DFM ($10^9$ cfu each of eight species/d/head, n = 29) or with antibiotics (0.1% neomycin sulfate in milk replacer and Colistin 0.08% and Oxyneo 110/110 0.1% in calf starter, n = 15), respectively. Overall fecal score and the incidence rate of diarrhea were reduced in the DFM group compared to the antibiotics one. About 40% of calves in antibiotic group suffered from diarrhea while in DFM group only 14% showed diarrhea. There was no difference in the average daily gain and feed efficiency of two groups. The hematological levels of calves were all within the normal range with no significant difference. In conclusion, the feeding of multispecies DFM during the pre-weaning period could reduce calf diarrhea and there was no difference in the growth performance between the groups, thus showing the potential as an alternative to antibiotics.

• Asian-Australasian Journal of Animal Sciences
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• 제28권2호
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• pp.252-259
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• 2015

The present study was conducted to investigate the efficacy of sweet potato powder (SPP) and water as a fat replacer in low-fat pork patties. Low-fat pork patties were developed by replacing the added fat with combinations of SPP and chilled water. Three different levels of SPP/chilled water viz. 0.5/9.5% (T-1), 1.0/9.0% (T-2), and 1.5/8.5% (T-3) were compared with a control containing 10% animal fat. The quality of low-fat pork patties was evaluated for physico-chemical (pH, emulsion stability, cooking yield, $a_w$), proximate, instrumental colour and textural profile, and sensory attributes. The cooking yield and emulsion stability improved (p<0.05) in all treatments over the control and were highest in T-2. Instrumental texture profile attributes and hardness decreased, whereas cohesiveness increased compared with control, irrespective of SPP level. Dimensional parameters (% gain in height and % decrease in diameter) were better maintained during cooking in the low-fat product than control. The sensory quality attributes juiciness, texture and overall acceptability of T-2 and T-3 were (p<0.05) higher than control. Results concluded that low-fat pork patties with acceptable sensory attributes, improved cooking yield and textural attributes can be successfully developed with the incorporation of a combination of 1.0% SPP and 9.0% chilled water.

• Asian-Australasian Journal of Animal Sciences
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• 제13권10호
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• pp.1461-1466
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• 2000

The use of the dairy male calf for beef production has been found to be economically unprofitable during the past due to high cost of feeds and relatively low beef price. However, due to current shortage of domestic beef supply and rising beef price, this research aimed to assess feeding methods and costs and returns in raising dairy male calves for beef production under changing economic conditions. Two diets were compared: calves on an optimal feeding level were given milk replacer for 44 d and a concentrate (with ad lib. hay) to 150 kg bodyweight that contained 16% crude protein; those given a sub-optimal diet, more appropriate for smallholder farms, received milk replacer for 30 d and 14% CP concentrate. Twelve pairs of dairy male calves (average age 32 days) of Holstein-Friesian high grades were used, each pair having similar influencing factors such as weight, age, and genotype. Each animal was kept in a separate feeding stall until reaching the final weight of 150 kg. The results from this experiment showed that the differences of traits concerning growth performance and feed efficiency of the animals raised under the two feeding regimes were statistically nonsignificant. The optimal group was just slightly better, but the cost of production of the sub-optimal group was 24 percent lower (4,667 vs. 6,144 baht per animal) and the cost difference was highly significant. The results from this investigation showed that beef production from dairy male calves can be economically viable when sub-optimal feeding method is used and market beef price is at current level.