• 한국작물학회지
• /
• 제69권2호
• /
• pp.111-122
• /
• 2024

식물유전자원의 중요성이 인식되면서 지속적으로 재배되어 온 재래종에 대한 유전학적 가치가 인정되고 있다. 이 연구에서는 경남에서 수집한 국내 재래종 밀에 대한 염색체와 이삭형태 관찰, 종자특성과 농업형질 평가, 및 국내 밀 품종과의 연관관계를 확인하였다. 국내 재래종 밀 4계통의 염색체는 42개로 확인되었으며, 이삭의 형태와 길이는 국내 품종인 금강밀과 차이를 보였다. 국내 재래종 밀 계통의 종실특성은 전반적으로 금강밀의 종실에 비하여 작은 면적, 너비, 및 길이를 보였으나, KWL-3의 배의 길이는 다른 재래종 밀뿐만 아니라 금강밀 종자의 배 길이보다도 길었다. 국내 재래종 밀 계통은 금강밀에 비하여 늦은 출수기와 성숙기를 보였다. 특히, KWL-3는 짧은 간장, KWL-2는 짧은 수장, KWL-1은 적은 분얼수를 보인 반면에 영화수와 일수립수는 금강에 비하여 재래종 밀 모든 계통에서 높았다. 이러한 이유는 금강밀에 비하여 높은 재래종 밀 계통의 임실률이 영향을 미친 것으로 판단된다. 하지만 재래종 밀 계통의 종실면적, 너비, 길이, 및 두께가 작아 금강밀보다 낮은 천립중을 보였다. 향후, 종실특성의 향상은 재래종 밀 계통에 필수 조건으로 생각하며, 금강밀에 비하여 높은 영화수와 일수립수 및 임실률은 유용한 유전인자로 활용될 수 있을 것이다.

• 농업과학연구
• /
• 제46권4호
• /
• pp.705-713
• /
• 2019

This study was conducted to determine the effects of dietary non-genetically modified organism (non-GMO) wheat-based diets on the growth performance, nutrient digestibility, blood profile and meat quality of grower-finisher pigs. A total of 70 [(Landrace × Yorkshire) × Duroc] growing pigs with an initial body weight of 26.15 ± 1.57 kg were used in a 112 day trial. The dietary treatments were as follows: (I) CD, corn-based diet and (II) non-GMO WD, a non-genetically modified organism wheat-based diet. Each treatment consisted of 7 replicate pens with 5 pigs per pen. In the current study, the pigs fed the corn-based diet had a higher body weight than the pigs fed the non-GMO wheat-based diet at day 21 and day 77 (p < 0.05). There was a significant difference in the average daily gain (ADG) during the first 21 days (p < 0.05). The non-GMO wheat-based diet had no effect on nutrient digestibility. In addition, the non-GMO wheat-based diet had no effect on the blood profile except for blood urea nitrogen (BUN) at d 21. In conclusion, the non-GMO wheat-based diet only had a slight effect on the growth performance of growing pigs but had no significant impact on the nutrient digestibility, fecal score, blood profile and meat quality of the pigs during the grower-finisher period.

• 농업과학연구
• /
• 제45권4호
• /
• pp.665-675
• /
• 2018

A total of 80 pigs [(Landrace ${\times}$ Yorkshire) ${\times}$ Duroc] with an average body weight of $72.9{\pm}2.6kg$ were used in the present study to investigate the effects of fermented whole crop wheat and barley with or without supplementing inoculums throughout the restricted feeding in finishing pigs. There were 4 replicate pens per treatment. Pigs were fed ad libitum throughout the experiment as the control (CON), and the other four groups were restricted to 10% in the CON diet and fed ad libitum fermented whole crop cereals: fermented whole crop barley with inoculums; fermented whole crop barley without inoculums; fermented whole crop wheat with inoculums; and fermented whole crop wheat without inoculums. During the entire experiment, the average daily feed intake (ADFI) decreased in the fermented barley and fermented wheat groups compared to the CON, while no difference was observed in the average daily gain (ADG), feed efficiency (gain : feed ratio, G : F) between the control and fermented whole crop barley, wheat diet group. Dry matter and nitrogen digestibility did not show a significant difference among the treatments. In the blood constituents, concentrations of blood urea nitrogen were significantly lower in pigs fed fermented whole crop barley without inoculum diets compared with the other treatments. In conclusion, restricted feeding with fermented whole crop barley and wheat regardless of the supplementing inoculums showed no significant difference in growth performance compared to the CON. This suggests that there is a possibility that fermented whole crop barley and wheat could replace part of the conventional diets.

• Journal of Animal Science and Technology
• /
• 제63권4호
• /
• pp.778-789
• /
• 2021

The objective of this study is to investigate the effect of dietary glucose oxidase (GOx) supplementation on the reproductive performance, litter performance, total tract digestibility, and blood profile of lactating sows fed corn- wheat-based diet. A total of twenty multiparous sows (Landrace × Yorkshire) were allocated into one of four treatments with five replicates per treatment. The dietary treatments were as follows: CON (Basal diet), GO1 (basal diet + 200 U GOx/kg), GO2 (basal diet + 300 U GOx/kg), GO3 (basal diet + 400 U Gox/kg). Dietary GOx supplementation did not affect lactating sow's reproduction performance as well as body weight, backfat thickness, and body condition score during pre and post farrowing, and at weaning (p > 0.05). However, after farrowing to weaning period lactating sow's fed GOx supplement has linearly (p = 0.0196) decreased the bodyweight loss. While, there were no effects (p > 0.05) observed on sows backfat thickness loss, average daily feed intake, and estrus interval among treatment groups. Dietary supplementation of GOx has linearly improved the body weight gain (p = 0.049) and average daily gain (p = 0.040) of suckling piglets. The total tract digestibility of dry matter and nitrogen was linearly increased with the graded level of GOx supplement. Also, a linear effect was observed on the glucose and superoxide dismutase of blood profile with the dietary inclusion of GOx. In summary, our finding indicates that the dietary inclusion of GOx supplement with corn- wheat-based diet had a beneficial effect on the nutrient digestibility and blood profile of lactating sows and improved the growth performance of suckling piglets.

• 한국작물학회:학술대회논문집
• /
• 한국작물학회 2017년도 추계학술대회
• /
• pp.249-249
• /
• 2017

• 한국작물학회지
• /
• 제64권4호
• /
• pp.353-365
• /
• 2019

본 연구는 근적외선 분광분석기(NIRS) 예측모델을 설정하여 유전자원 대량분석 체계를 확립하고 그에 따른 국내 외 밀 자원의 단백질 함량에 관한 기초 정보를 제공하고자 하였다. 1. 농업유전자원센터에 보유하고 있는 20,000여 자원 중 1,798자원을 검량 자원으로 선발하였다. 검량자원의 NIR 스펙트럼을 측정하였고, 단백질 함량 습식분석 데이터 입력 등 일련의 통계적 처리 과정을 거쳐 NIRS 예측모델을 설정했다. 검량 자원의 다양성 지수는 0.80이었고, 습식 분석법에 의한 단백질 평균은 13.2%, 함량 구간은 7.0-20.8%였다. 최적화된 NIRS 모델의 R², SEC, Slope은 0.997, 0.132, 1.000이었다. 300자원을 사용하여 외부 검정 과정을 실시하였고 R², SEP, Slope은 0.994, 0.191, 1.013이었다. 최적화된 NIRS 모델과 외부검정 결과의 통계치가 상호 유사하였고, 1에 가까운 R²와 Slope 값, 낮은 SEC와 SEP 값을 볼 때 본 연구에서 설정한 NIRS 모델은 습식 분석법을 대체하여 밀 자원의 단백질 함량 분석에 적용 가능할 것으로 판단되었다. 2. 국내외 수집된 밀 6,794자원의 NIRS 단백질 함량 측정값을 정규분포로 작성하여 특성을 파악했다. 자원의 다양성 지수는 0.79, 단백질 평균은 12.1%, 전체 자원의 임의구간 42.1% 단백질 함량자원 범위는 10-13%이었으며, 68.0%를 차지하는 자원들의 단백질 함량 범위는 9.5-14.7%였다. 3. 전체 6,794자원의 품종 집단 구성은 육성계통 3,128자원, 재래종 2,705자원, 육성품종 961자원이었다. 육성계통 자원의 다양성 지수는 0.80, 단백질 평균은 11.8%, 전체 자원의 68%를 차지하는 자원들의 함량 범위는 9.2-14.5%였다. 재래종 자원의 다양성 지수는 0.76, 단백질 평균은 12.1%, 전체 자원의 68.0%를 차지하는 자원들의 함량 범위는 9.8-14.4%였다. 육성품종 자원의 다양성 지수는 0.80, 단백질 평균은 12.8%, 전체 자원의 68.0%를 차지하는 자원들의 함량 범위는 10.2-15.4%였다. 재래종 자원은 가장 낮은 다양성 지수를 나타냈고, 육성계통과 육성품종은 동일한 다양성 지수를 나타냈다. 육성계통은 가장 낮은 단백질 평균을 나타냈고, 육성품종은 가장 높은 단백질 평균을 나타냈다.

• 농업과학연구
• /
• 제44권3호
• /
• pp.409-415
• /
• 2017

This study was conducted to investigate the effect of supplementation of fermented wheat bran (FWB) on growth and blood characteristics in weaned pig. A total of 36 weaned pigs ($Landrace{\times}Yorkshire{\times}Duroc$; BW, $7.78{\pm}0.04kg$) were randomly allocated to three dietary treatments with different FWB concentrations (0, 0.5, and 1.0%), and each treatment had 3 replicate pens with 4 pigs per pen. The FWB was obtained from a mixture of wheat bran and two microbes (Lactobacillus plantarum M10 and Saccaromyces cerevisiae) and was determined to contain $10.19{\pm}0.27log\;CFU/g$ of L. plantarum and $7.73{\pm}0.38log\;CFU/g$ of S. cerevisiae. Experimental diets were prepared by mixing 0 (control), 0.5, or 1.0% of the FWB to the basal diet, and fed to the weaned pigs for 7 weeks. During the experimental period, the pigs had access to the diet and water ad libitum. Feed intake increased significantly in the 1.0% FWB group compared to the control and 0.5% FWB groups (p < 0.05), whereas the other growth parameters were not different among the treatment groups. White blood cells and lymphocytes were significantly decreased in the FWB treatment groups compared to the control group, but other blood corpuscles were not different among the treatment groups (p < 0.05). The pigs fed 0.5% FWB showed greater serum IgG than the control and 1.0% FWB groups (p < 0.05). In conclusion, the FWB fed to weaned pigs did not negatively affect their growth performance, but rather reduced mortality by fortifying immunity.

• 농업과학연구
• /
• 제49권1호
• /
• pp.163-170
• /
• 2022

This study investigates the effects of the dietary inclusion of zinc oxide (ZnO) on the growth performance, apparent total digestibility, and the fecal scores of growing pigs fed a corn-wheat-based diet. In total, 84 crossbred (Landrace × Yorkshire × Duroc) growing pigs with an initial body weight of (20.86 ± 0.64 kg) (4 pigs·pen^-1; 2 gilts and 2 barrows; 7 replications·treatment^-1) were randomly assigned to three treatment groups based on body weight (BW) and sex in a three-week trial. The dietary treatments were as follows: TRT1 (CON [basal diet]), TRT2 (CON + 0.07% ZnO), and TRT3 (CON + 1% ZnO). Dietary ZnO supplementation significantly (p < 0.05) improved body weight gain (BWG) of growing pigs at weeks 2 and 3 compared to the control diet. In addition, dietary ZnO supplementation significantly (p < 0.05) increased the average daily gain (ADG) and average daily feed intake (ADFI) at weeks 2, 3, and overall. However, the feed conversion ratio (FCR) remained unaffected throughout the trial. Regarding the total tract nutrient digestibility of nitrogen, dry matter was significantly improved with an increased level of ZnO supplementation. In addition, dietary supplementation of ZnO significantly reduced fecal scores in grower pigs at the initial period compared to the control diet. In summary, dietary inclusion of zinc oxide via supplementation improved growth performance, and total tract digestibility and reduced the fecal scores of growing pigs.

• Journal of Animal Science and Technology
• /
• 제59권7호
• /
• pp.19.1-19.10
• /
• 2017

Background: To reduce use of main feed ingredient like corn, soy bean meal (SBM) and wheat, alternative ingredients has been studied like copra meal (CM). Production amount of CM which has been high makes CM to be an alternative feed stuff. However, low digestibility on AA and low energy content by high fiber content can be an obstacle for using CM. This experiment was conducted to evaluate the effects of CM supplementation with ${\beta}$-mannanase on growth performance, blood profile, nutrient digestibility, pork quality and economic analysis in growing-finishing pigs. Methods: A total of 100 growing pigs ([Yorkshire ${\times}$ Landrace] ${\times}$ Duroc) averaging $31.22{\pm}2.04kg$ body weight were allotted to 5 different treatments by weight and sex in a randomized complete block (RCB) design in 5 replicate with 4 pigs per pen. Treatments were 1) Control (corn-SBM based diet + 0.1% of ${\beta}$-mannanase (800 IU)), 2) CM10 (10% copra meal + 0.1% ${\beta}$-mannanase (800 IU)), 3) CM15 (15% copra meal + 0.1% ${\beta}$-mannanase (800 IU)), 4) CM20 (20% copra meal + 0.1% ${\beta}$-mannanase (800 IU)) and 5) CM25 (25% copra meal + 0.1% ${\beta}$-mannanase (800 IU)). Four phase feeding program was used: growing I (week 1-3), growing II (week 4-6), finishing I (week 7-9) and finishing II (week 10-12). Results: In growth performance, there was no significant difference among treatments during whole experimental period. In growingI phase, G:F ratio tended to increase when CM was increased (P = 0.05), but ADG and ADFI tended to decrease in finishingII phase (linear, P = 0.08). Also, increasing CM reduced ADG (linear, P = 0.02) and feed efficiency (linear, P = 0.08) during the whole finishing period. In blood profiles, BUN was linearly increased as CM increased (linear, P = 0.02) at growingII period. In digestibility trial, there was no significant difference in dry matter, crude fat, crude ash and nitrogen digestibility. However, crude protein digestibility was decreased linearly (linear, P = 0.02). In economic analysis, feed cost per weight gain and total feed cost per pig were reduced in overall period when CM was provided by 25% (linear, P = 0.02). Conclusion: CM with 0.1% of ${\beta}$-mannanase (800 IU) could be supplemented instead of corn and SBM up to 25% without detrimental effects on growth performance and pork quality of growing-finishing pigs.

• Journal of Animal Science and Technology
• /
• 제52권5호
• /
• pp.399-406
• /
• 2010

본 연구에서는 생강과 황금 건조 분말의 급여가 모돈의 유질과 자돈의 면역력에 미치는 영향을 구명하고자 수행하였다. 공시동물은 2산차 F1 임신모돈 24두를 이용하였다. 시험사료는 대조구(CON) 사료에 생강건조분말(GDP)과 황금건조분말(SDP)를 0.3 % 대체하여 분만 전 30일부터 이유 21일까지 시험사료를 급여하였다. 모돈 혈청에서 항산화력과 IgG는 처리구간에 유의적인 차이를 나타내지 않았다. 초유에서 항산화력은 처리구가 대조구보다 높은 수치를 나타내었지만, 처리구간의 유의적 차이를 나타내지 않았다. 초유의 IgG 함량은 GDP구가 다른 처리구에 비해 유의적으로 높게 나타났다(P<0.05). 초유의 유성분 함량에서, 단백질 함량은 GDP구가 다른 처리구에 비해 유의적으로 높게 함유하였다 (P<0.05). 지방과 유당 함량은 처리구간에 유의적 차이를 나타내지 않았다. 초유의 아미노산 조성은 SDP구가 다른 처리구에 비해 각각의 아미노산 함량이 유의적으로 높게 나타났다. 0일령과 21일령에서 자돈 혈청의 항산화력은 처리구간에 유의적 차이를 나타내지 않았지만, 다른 구에 비해 GDP구가 높은 함량을 유지하였다. IgG 함량은 0일령에서는 측정되지 않았고, 21일령에서는 GDP구가 다른 구에 비해 유의적으로 높은 함량을 나타내었다(P<0.05). 이상의 결과로, 생강 건조분말은 초유의 IgG 함량과 자돈 혈청 IgG 함량을 개선시키는 효과가 확인되어 모돈 사료의 유질개선용으로 활용이 가능할 것으로 판단된다.