영양 ; 30 . 브로일러의 단백질과 에너지요구량 결정을 위한 연구 ;Ⅱ. 사료내의 다양한 단백질과 에너지수준이 브로일러의 영양소 이용율 , 복부지방 및 내장의 크기에 미치는 영향

손광수,한인규 한국동물자원과학회 ( 구 한국축산학회 ) 1983 제40회 학술발표회 논문초록 Vol.- No.-

교통사고 심각 정도 예측을 위한 TATI 모델 제안

추민지 ( Min-ji Choo ),박소현 ( So-hyun Park ),박영호 ( Young-ho Park ) 한국정보처리학회 2021 정보처리학회논문지. 소프트웨어 및 데이터 공학 Vol.10 No.8

TATI 모델이란 Traffic Accident Text to RGB Image 모델로, 교통사고 심각 정도 예측을 위한 본 논문에서 제안하는 방법론이다. 교통사고 치사율은 매년 감소하는 추세이나 OECD 회원국 중 하위권에 속해있다. 교통사고 치사율 감소를 위해 많은 연구들이 진행되었고, 그 중에서 교통사고 심각 정도를 예측하여 발생 및 치사율을 줄이기 위한 연구가 꾸준하게 진행되고 있다. 이와 관련하여 최근에는 통계 모델과 딥러닝 모델을 활용하여 교통사고 심각 정도 예측을 하는 연구가 활발하다. 본 논문에서는 교통사고 심각 정도를 예측하기 위해서 교통사고 데이터를 컬러 이미지로 변환하고, CNN 모델을 통해 이를 수행한다. 성능 비교를 위해 제안하는 모델과 다른 모델들을 같은 데이터로 학습시키고, 예측결과를 비교하는 실험을 진행했다. 10번의 실험을 통해 4개의 딥러닝 모델의 정확도와 오차 범위를 비교하였다. 실험 결과에 따르면 제안하는 TATI 모델의 정확도가 0.85로 가장 높은 정확도를 보였고, 0.03으로 두 번째로 낮은 오차 범위를 보여 성능의 우수성을 확인하였다. The TATI model is a Traffic Accident Text to RGB Image model, which is a methodology proposed in this paper for predicting the severity of traffic accidents. Traffic fatalities are decreasing every year, but they are among the low in the OECD members. Many studies have been conducted to reduce the death rate of traffic accidents, and among them, studies have been steadily conducted to reduce the incidence and mortality rate by predicting the severity of traffic accidents. In this regard, research has recently been active to predict the severity of traffic accidents by utilizing statistical models and deep learning models. In this paper, traffic accident dataset is converted to color images to predict the severity of traffic accidents, and this is done via CNN models. For performance comparison, we experiment that train the same data and compare the prediction results with the proposed model and other models. Through 10 experiments, we compare the accuracy and error range of four deep learning models. Experimental results show that the accuracy of the proposed model was the highest at 0.85, and the second lowest error range at 0.03 was shown to confirm the superiority of the performance.

[북한의 금융구조 변화 (下)] 북한의 전화돈과 모바일 결제 앱 ‘울림’

손광수 북한연구소 2020 北韓 Vol.- No.582

입질사료가 조기이유 자돈의 이유후 성장능력에 미치는 영향

손광수,챨스맥스웰 한국축산학회 1995 한국축산학회지 Vol.37 No.1

A study involving 144 pigs weaned at approximately 24 days of age was conducted to determine the effect of creep feeding on postweaning performance in early weaned pigs. Pigs from litters offered creep feed for one week prior to weaning and pigs from litters not offered creep feed were blocked by weight into two groups(heavy and light weight) and fed a common prestarter diet for the first two week period(Period 1) and a common starter diet from day 15 to 35 postweaning(Period 2). During week 1 and for Period 1, average daily gain was similar between heavy pigs from both the creep fed and non-creep fed groups but average daily gain of light weight pigs was greater in pigs previously fed creep feed. Average daily gain was similar for all pigs during week 2. During week 1 average daily feed intake was similar for heavy pigs and for light pigs between treatments. During week 1 and for Period 1, smaller pigs previously fed creep feed had improved feed efficiency when compared to those not offered creep, however, feed efficiency of heavy weight pigs was similar between the two groups. During Period 2 average daily gain and average daily feed intake of heavy pigs were improved in the creep fed group when compared to non-creep fed group. Feed efficiency during Period 2 was similar between the two treatment. This study suggests that creep feeding influences subsequent performance of early weaned pigs.

유기산제의 첨가가 조기이유자돈의 성장 및 영양소 소화율에 미치는 영향

손광수,한인규,배수한,정원덕,현영 한국축산학회 2000 한국축산학회지 Vol.42 No.1

This study was conducted to investigate the effects of various acidifiers on growth performance and nutrient digestibility of early weaned pigs. A total of 150 crossbred pigs (5.07 ㎏ average body weight) were allotted to six treatments, which were 1) citric acid, 1.5%; 2) fumaric acid, 1.5%; 3) calcium formate, 1.5%; 4) Acidlac^ⓡ, 0.2%; 5) Stacidem^ⓡ, 0.2% and 6) control (without any acidifiers). Eighteen pigs fitted with simple T-cannulas were used to determine fecal and ileal nutrients digestibilities for two weeks. During overall experimental period, Acidlac and Stacidem treatments were significantly better than the control in feed efficiency (P$lt;0.05), however, in average daily gain and average daily feed intake, there was no significant difference among treatments (P$gt;0.05). During phase I, the fecal digestibility of protein by citric acid treatment was significantly higher than treatments supplemented with other acidifiers (P$lt;0.05). Acidifier treatments tended to improve ileal digestibility of dry matter when compared with control. Acidifiers seemed to improve ileal digestibilities of proximate nutrients in early weaned pigs when compared with control. During phase I, citric acid treatment was highest in fecal digestibilities of essential amino acids among treatments and was significantly higher than calcium formate treatment in fecal digestibility of isoleucine (P$lt;0.05). Dwing phase II, Acidlac and Stacidem treatment showed higher fecal amino acid digestibilities than other treatments. Fecal digestibilities of valine, isoleucine, leucine and phenylalanine by Stacidem treatment was significantly higher than those of citric acid and control treatments (P$lt;0.05). In ileal digestibilities of total amino acids, both Acidlac and Stacidem treatments were higher than others.

브로일러의 단백질과 에너지 요구량 결정에 관한 연구 2 . 사료내의 다양한 단백질과 에너지수준이 브로일러의 영양소 이용율 , 복부지방 및 내장의 크기에 미치는 영향

손광수,한인규 ( K . S . Sohn,I . K . Han ) 한국축산학회 1983 한국축산학회지 Vol.25 No.4

In order to study the effect of various levels of dietary energy (2800, 3000, 3200, 3400 ㎉ ME/kg), and protein for starters(21, 23, 25%), for growers(18, 20, 22%), and for finishers (16, 18, 20%), respectively, on the nutrient utilizability, content of abdominal fat, and the size of internal bility, content of abdominal fat, and the size of internal organs, 3×4 factorial experiments were conducted. The results of the present study were summarized as follows 1. The utilizability of experimental diets fed during growing period were significantly different among the treatments. Dry matter and protein utilization of chicks were increased with increasing level of energy and decreasing level of protein. Crude fat utilization of chicks was increased with increasing level of protein. Metabolizability of energy was considerable(p$lt;0.01) improved as the level of energy increased and protein decreased. 2. The main factor determining the amount of abdominal fat deposited was the protein content of the diet in relation to the total energy. Abdominal fat quantity was increased as the energy-protein ratio widened. At each protein levels, high energy groups produced more abdominal fat. 3. No statistical differences were found in the size of internal organs among the levels of protein or energy, the weight of liver tended to increase with increasing levels of dietary protein. 4. Liver fat and liver gross energy values were increased with increasing the level of energy, but no significant differences were found in the liver protein values among the treatments.

브로일러의 단백질과 에너지 요구량 결정에 관한 연구 1 . 사료내의 다양한 단백질과 에너지수준이 브로일러의 성장에 미치는 영향

손광수,한인규 ( K . S . Sohn,I . K . Han ) 한국축산학회 1983 한국축산학회지 Vol.25 No.4

In order to determine the optimum dietary protein and energy requirements of broiler chicks, 480 chicks of meat-breed (Maniker) were fed 12 kinds of diet formulated to contain the various level of dietary protein for starters (21, 23, 25%), for growers (18, 20, 22%), and for finishers (16, 18, 20%), respectively, and dietary energy (2800, 3000, 3200, 3400 ㎉ ME/㎏) according to 3 x 4 factorial design. The results of the present study were summarized as follows. 1. According to the results of starter periods. body weight gain and feed efficiency were considerably (p$lt;0.01) improved but feed intake was decreased as the levels of dietary energy increased. No difference was observed in the growth rate by the chicks fed the diet containing different level of dietary protein. Feed efficiency was significantly (p$lt;0.01) improved as the level of protein increased. 2. In the grower periods, the growth rate and feed conversion rate were improved as the levels of dietary protein and energy increased until an adequate level of protein was supplied, although no remarkable difference among the protein levels. Feed consumption was increased with decreasing levels of dietary protein and energy. 3. For finishing broiler chickens, dietary protein levels had some significant effects on body weight. Chicks receiving 20% protein had poorer body weight gain as compared with those receiving 1.8 or 16% protein levels. Feed consumption was increased as the level of dietary energy decreased. Feed conversion eras considerably (p$lt;0.01) improved as the level of dietary energy and protein increased. 4. According to the results of overall feeding trials from 0 to 9 weeks, total body weight gain from starters to finishers was increased with increasing level of energy. Total feed consumption was remarkably (p$lt;0.01) higher for the low energy group than for the high energy group. Overall feed conversion rate was improved as the level of dietary energy and protein increased. 5. There were no statistical differences in mortality of the experimental birds due to dietary treatment. 6. Feed cost per kilogram body weight gain of birds fed the diet of 23-20-18%-3000, 21-18-16%-3200, 21-18-16%-3000, and 21-18-16%-2800 ㎉ ME/㎏ groups was less than that of chicks fed other diets. Considering feed cost, body weight gain and feed efficiency, the best results were obtained at 23-20-18%-3200 ㎉ ME/㎏, 23-20-18%-3000 ㎉ ME/㎏, 21-18-16%-3200 ㎉ ME/㎏, and 21-18-16%-3000 ㎉ ME/㎏ groups. According to the above results, it could be concluded that a diet containing 23% protein and 3200 ㎉ ME/㎏ for starters, 20% protein and 3200 ㎉ ME/㎏ for growers, 16 to 18% protein and 3000 ㎉ ME/㎏ for finishers would be suitable for optimum performance.

옥수수 - 대두박 사료내 미생물 Phytase 의 첨가가 브로일러의 생산능력에 미치는 영향

손광수,권관,권찬호,장재익,주종철,유문일,최양웅 한국축산학회 1999 한국축산학회지 Vol.41 No.5

This experiment was conducted to evaluate the effects of a domestic phytase originated from bacterial source on performance of starter and Bower broiler chicks. It was basically designed to meet NRC requirement for the contents of calcium and phosphorus when the contents of Ca and P in the feeds were met to 100%(Control; C) and 80%(P0) of the NRC requirement. Three different bacterial phytase(0, 300, 500PU) were supplemented to basal diet and compared it's effect on growth performance, nutritional digestibility, fecal N and P excretion, tibial Ca and P content. A total 200 broiler chicks were assigned to 4 treatments with 5 replications per treatment, 10 chicks of each replication. The weight gain(1,581.6g) in control treatment(C) was slightly higher than that of P0(1,557.7g). Although phytase treatments(P300 and P500) tended to show higher weight gain as compared to treatments without phytase, there were no significant differences among the treatments. No differences were observed among dietary treatments for feed efficiency although broiler chicks fed control diet (1.94) tended to show slightly better feed efficiency than those fed P0 diet(1.99). The excretion of P per kg weight gain tended to be decreased by 17% when 300PU of bacterial phytase was fed to starter and by 10% when 500PU was fed to Bower. However, there were no statistical significances among the treatments. It was concluded that the addition of phytase had neither affects in improving of utilization efficiencies of dry matter, crude protein, and crude fat, nor efficiencies of Ca and P. The supplemental of phytase at the level of 500 ppm for both stages of broiler chick diets was assumed to appropriate.

만난올리고당과 단백질 수준이 21 일령 이유자돈의 성장 및 면역상태에 미치는 영향

손광수,한인규,김진동,현영,김태중,우희종 한국동물자원과학회 2000 한국축산학회지 Vol.42 No.4

This experiment was conducted to investigate the effect of mannanoligosaccharide as an immunostimulator with different protein levels on the growth performance, proximate nutrient digestibilities, apparent amino acid digestibilities and immune status in pigs weaned at 21 days old. One hundred-fifty three way crossbred (Landrace x Large White x Duroc) pigs averaged 6.08kg of body weight, and weaned at 21 days of age were assigned to six treatments by a 2 x 3 factorial arrangement [two level of MOS (0 and 0.1%) and three level of protein (20%, 23% and 26%)]. Each treatment has 5 replicates with 5 pigs per replicate. The pen is an experimental unit. Pigs fed diet with MOS had improved weight gain and feed consumption (p$lt;0.05) during the entire period, however, the protein level did not improved growth performance, and no interaction between the protein and MOS levels was observed. Although there was no significant difference, pigs fed the diet with high (26%) or medium (23%) protein showed better average daily gain (ADG) and feed efficiency than pigs fed diet with low (20%) protein regardless of MOS addition. The protein level did not affected the nutrient digestibilities of experimental diets. And, also, there was no interaction between protein level and MOS addition in digestibilities. Only dry matter digestibility was significantly higher in pigs fed the diet with MOS than pigs fed diet without MOS (p$lt;0.05). There was no main effect of protein level and MOS addition, and no interaction effect between protein level and MOS addition in essential and non-essential amino acid digestibilities. Protein level or MOS addition did not affected immune parameters in pigs. Additionally, no interaction effect on immune parameters was observed between protein level and MOS addition. However, pigs fed diet with the medium (23%) protein showed lower CD4+:CD8+ ratio than pigs fed other diets regardless of MOS addition, and pigs fed diets with the MOS showed low immune status such as low CD4 positive lymphocytes, high CD8 positive lymphocytes, low CD4+:CD8+ ratio during the overall period without considering protein level. In conclusion, the pigs fed diets with the immunostimulator like MOS improved growth performance and maintained low immune system when compared to pigs fed diets without the MOS. However, there was no significant difference in growth performance and immune status between protein levels.

사료중 Flaxseed 가 돼지의 성장과 돈육의 지방산 조성에 미치는 영향

손광수,김명곤,정정수 ( K . S . Sohn,M . K . Kim . C . S . Chung ) 한국축산학회 1997 한국축산학회지 Vol.39 No.1

The objective of this study was to determine the effect of dietary flaxseed on pig growth performance and fatty acid composition of pork. Eighty-four gills weighing approximately 85㎏ were fed diets containing 0 (control diet) or 8% flaxseed for the final 28 days prior to slaughter. Flaxseed treatment did not affect any growth performance of finishing pips(P$gt;0.1). However, pigs fed flaxseed diet had significantly(P$lt;0.05) higher amounts of omega-3 fatty acid in loin and belly and resulted in a reduction in the ratio of omega-6 to omega-3 fatty acid from 12:1 to 4.5:1(P$lt;0.05).