사료내 전해질 공급제의 종류가 이유자돈의 성장 , 뇨성상 및 영양소 이용율에 미치는 영향

박재환(J . H . Park),한인규(I . K . Han) 한국영양사료학회 1994 韓國營養飼料學會誌 Vol.18 No.3

사료자원 개발을 위한 연구 1 . 부로일러에 대한 해조류의 사료적 가치에 관한 연구

한인규,이봉덕,윤덕진,백인기,김춘수 ( In K . Han,Bong D . Lee,Doug J . Yoon,In K . Paik,Chun S . Kim ) 한국축산학회 1975 한국축산학회지 Vol.17 No.3

A total of 240 five-day-old Starbro broiler chicks was allotted to 4 treatments, 4 replica tes per treatment, according to completely randomized design to find out the effects of substitution levels(0, 2, 4 and 6%) of Korean kelp meal for wheat mill run on the growing performance of experimental birds. Results obtained are summarized as follows: 1. Kelp meals studied were analyzed for the contents of proximate compositions(moisture 15.24%, crude protein 12.84%, crude fat 1.97%, crude fiber 6.02%, nitrogen free extract 36.65%), vitamins, minerals and also for amino acids. It was found that protein quality of kelp meal was as good as wheat bran. 2. Although no significant difference was found among treatments in body weight gain, feed intake, feed efficiency and mortality, the birds fed 4% kelp meal diet showed the best performance in growth rate. 3. In the nutrients utilizability and ME values of finisher diets, no significant difference was found among treatments. 4. Based on these results described above, it seemed that substitution of wheat bran with kelp meal up to 6% level could be used without adverse effect in the broiler ration.

향미소의 첨가효과에 관한 연구 1 . Feednectar 의 자돈 및 브로일러 사료에의 첨가효과

한인규,오상집,하종규,김춘수 ( In K . Han,Sang J . Ohh,Jong K . Ha,Chun S . Kim ) 한국축산학회 1978 한국축산학회지 Vol.20 No.2

Two experiments were conducted to study the effects of use of Feedrectar on the growing performances of young pigs (Expt. I) and broiler chicks (Expt. II). In the Experiment I, 200 crossbred baby pigs weighing approximately 11㎏ of body weight mere used in five treatments of Feednectar 0%, Feednectar 0.05%, Feednectar 0.1%, sucrose 2% and a palatability-testing groups during 4 weeks of experimental period. In the Experiment II, a total of 270 broiler chicks of Shaver strain were employed in three treatments consisted of 0%, 0.05%, 0.1% of Feednectar for a period of 8 weeks. The results obtained are summarized as follows: 1. It was found that the body weight gain of young pigs (9.4%) and broiler chicks (5.6%) was significantly (P$lt;0.05) improved when the Feednectar was added is the rations of these experimental animals at the level of 0.1%. 2. The amount of feed consumed by the experimental pigs and chicks was also consider ably (P$lt;0.05) increased as the level of Feednectar in the diets increased. 3. Present data indicated that the feed efficiency of animals fed Feednectar was also improved, although no statistical significance was found between treatments except 0.1%, Feedneetar fed broilers that showed significant difference at the level of 5%. 4. It was apparent that the addition of Feednectar at the level of 0.1% would be recommendable for better growing performances of early weaned pigs and broiler chicks. 5. Palatability test conducted by young pigs revealed that the addition of either Feednectar or sugar could improve the palatability of experimental diets. 6. Shark color of broiler chicks was slightly improved by the use of Feednectar, although the significant difference was not found. 7. It was found that the experimental chicks fed Feednectar utilized the dry matter, crude protein, crude fat and carbohydrate in the diet more efficiently than control group. 8. Protein loss in the rations of pigs and broilers was alway less for Feednectar added diet than control diet during the storage period.

무기태린 공급제의 이용성에 관한 연구 2 . 사료용 제2인산 칼슘제의 첨가수준이 육계의 성장 , 영양소이용율 , 혈액 및 경골성분에 미치는 영향

한인규,하종규,이기웅,고종열,이돈우 ( In K . Han,J . K . Ha,K . U . Lee,J . Y . Ko,D . W . Lee ) 한국축산학회 1986 한국축산학회지 Vol.28 No.12

This study was carried out to assess effects of various levels of dietary phosphorus on the growth of broiler chicks, nutrient digestion and blood and bone parameters. Various levels of dietary phosphorus were added to experimental dits with dicalcium phosphate. Five treatments (LL; lower, L; low, O; optimum, H; high, HH; higher) having various dicalcium phosphate levels were involved in this trial. Feeding trials as well as metabolic trials and determination of bone and blood parameters were conducted. Of the various levels of phosphorus, a level (Optimum level in present trial) recommended. by NRC resulted in the best performance of chicks regardless of experimental period and modification of dietary ingredients. Parameters of bone, blood and digestibility and utilizability of nutrients were interrelated each other, but had little correlation with growth rate with a few exception.

항생물질 첨가제의 육성돈에 의한 성장촉진효과

한인규,하종규,최성식 ( In K . Han,Jong K . Ha,Sung S . Choi ) 한국축산학회 1975 한국축산학회지 Vol.17 No.4

A feeding trial was carried out to compare the growth-stimulating effect of chlortetracycline, oxytetracycline and oleandomycin for growing-finishing swine for a period of 9 weeks using 72 hogs of Landrace × Yorkshire crossbred weighing an average of 44㎏ in body weight. The results obtained are summarized as follows: 1. Body weight gain of exprimental group fed 25g of chlortetracycline per ton of feed was significantly (p$lt;0.05) better than those fed oxytetracycline 15g or control, Generally, supplementation of antibiotics in the ration of growing swine resulted in more body weight gain than control. It was found that there was no difference between pigs fed chlortetracycline 25g, oxytetracycline 25g or oleandomycin 5g in body weight gain. 2. Experimental pigs fed chlortetracycline 25g and oxytetracycline 25g consumed significantly (p$lt;0.05) more feed than the other antibiotic fed groups or control group. There was no difference in the amount of feed intake between oleandomycin 5g group and control group. 3. Supplementation of antibiotics to the growing-finising swine could improve feed conversion rate, although no statistical significance was detected. It was found that feed efficiency obtained from the group fed oleandomycin (3.95 on the average) was much better than those fed chlortetracycline or oxytetracycline (4.14 on the average). Present data revealed that approximately 7% of feed efficiency could be improved by feeding oleandomycin at the level of 5g per metric ton of feed. Additional improvement of feed efficiency could be obtained when 50g of Mecadox per ton of feed was fed during early growing period of pigs (10-45㎏ of body weight) and then fed 5g per metric ton of oleandomycin during later period of growth (45-90㎏).

가금사료의 TME 분석 방법 고찰

한인규,송만강 ( I . K . Han,M . K . Song ) 한국축산학회 1986 한국축산학회지 Vol.28 No.1

N/A

가축별 대사시험 및 소화시험 표준방법 설정을 위한 연구 3 . 면양에 대한 사료급여방법 , 전분채취법과 간접방법이 소화율 및 에너지이용율에 미치는 영향

한인규,이규호,최윤재 ( In K . Han,K . H . Lee,Y . J . Choi ) 한국축산학회 1983 한국축산학회지 Vol.25 No.4

This experiment was conducted to compare the single feeding method with the mixed feeding method or total collection method with indirect method by chromic oxide in evaluating the feed for lambs. For digestion trial, 12 lambs weighing approximately 50 to 60 ㎏ were divided into 4 groups. i.e., corn l00% group, corn 70% + soybean meal 30% group, corn 30% + soybean meal 70% group, soybean meal 100% group. In respective group, hay was supplied for roughage. To determine the digestibility of nutrients and energy utilizability by feeding method or total collection and indirect method, digestion trial was conducted for 14 days. i.e., preliminary periods 9 days and collection periods 5 days. The results obtained were summarized ;is follows. 1. There was not the constant trend in amount of urine. But in amount of feces, single feeding method groups were more than mixed feeding method. In amount of feces, soybean meal 100% group was the highest (2024.2g/5 days) and corn 100% group was the lowest (1834.0g/5 days). In chemical composition of feces, single feeding method group was lower than mixed feeding method group. But there were not the constant trend in chemical composition of urine. 2. Single feeding group was higher than the mixed feeding group in percent of excretion. Recovery rate of chromium was the reverse tendency to percent of excretion (average 96.13%). 3. In proportion to increase the soybean meal level, digestibility of crude protein was increased but that of carbohydrate was decreased. In crude fat and dry matter digestibility, there were not the. constant tendency. 4. Total collection or indirect method by chromic oxide ,might be used. But digestibilities by indirect method were lower than those by total collection method. It was caused to recovery of chromium. 5. Average DCP, TDN and DE of corn were 5.24%, 72.07% and 3105 ㎉/㎏. Those of soybean meal were 36.64%, 69.91% and 3160 ㎉/㎏.

볏짚 가공사료의 개발을 위한 연구 2 . 면양에 대한 볏짚 가공사료의 사료섭취량 , 소화율 및 VFA 조성에 미치는 영향

한인규,최윤재,류연선,김창원,배동호,맹원재,오대균 ( I . K . Han,Y . J . Choi,Y . S . Ryu,C . W . Kim,D . H . Bae,W . J . Maeng,D . K . Ohh ) 한국축산학회 1983 한국축산학회지 Vol.25 No.3

This experiment was conducted to examine feed intake, digestibility and volatile fatty acid (V FA) composition of ruminal juice of NaOH treated rice straw or NaOH treated rice straw pellet through digestibility experiment and the determination of ruminal pH and volatile fatty acid pattern for lamb. Tweleve male lambs weighing 45 ㎏ on average body weight were divided into 4 treatments i.e. control group (raw rice straw chopped in 5 ㎝), 1% NaOH treated group, 3.5% NaOH treated pellet A group (1.7-1.8 ㎝ in diameter and 4.5㎝ in length) and 3.5% NaOH treated pellet B group (2.4 ㎝-2.5 ㎝ in diameter and 3-4 ㎝ in length). Among 12 lambs, 8 lambs were used for digestion trial and 4 fistulated lambs were used for measuring the VFA pattern and changes in pH of rumen juice. The results obtained were summarized as follows. 1. The daily rice straw feed intake of lambs fed rice straw pellet B (806 g/day) and rice straw pellet A (767 g/day) was higher than that of NaOH treated rice straw (679 g/day) or control group (396 g/day). 2. Digestibilities of dry matter, C. Protein, C. fiber and NFE in rice straw pellet B were the highest and that of untreated straw was lowest. Digestibilities of crude fiber and NFE in rice straw pellet A were higher than those of NaOH treated rice straw. However, the opposite trend were shown in those of dry matter, crude fat and crude protein. The contents of DCP and TDN of rice straw pellet B (1.42%, 51.39%) were highest and those of untreated straw (0.39%, 41.58%) were the lowest. 3. The total VFA production of rumen juice was the highest in NaOH treated rice straw pellet A group (101.93 m M/l) and was the lowest in control group (88.39 m M/l). In change of VFA. production, NaOH treated rice straw pellet A and B groups showed the peak at one hour after feeding and was half hour in NaOH treated rice straw. But control group was decreased for one hour. No significant difference was found in pH change of rumen juice collected. According to the present results, NaOH treated with or without palleting the rice straw is considered to be an improved source roughage for the ruminant animals.

Salinomycin 의 육성돈에 대한 성장촉진효과

한인규,박재환,이상철,유문일,최관 ( I . K . Han,J . H . Park,S . C . Lee,M . I . Yoo,K . Kwon ) 한국축산학회 1982 한국축산학회지 Vol.24 No.4

The experiment was conducted to investigate the growth promoting effect of salinomycin for growing-finishing swine. In this experiment 192 hogs of Large White x Landrace x Duroc or Hampshire three way crossed weighing an average of 24 ㎏ in body weight were used in three treatments of Control Salinomycin 25 ppm and Colistin 10 ppm for a period of 14 weeks. The results obtained are as follows: 1. The average daily gain of Salinomycin fed group was considerably (p$lt;0.05) better than that of nonmedicated group (control). However, there was no statistical difference between Salinomycin and Colistin fed group. 2. It was also found that feed intake was much less (p$lt;0.05) for Salinomycin fed group than for control group. 3. Feed efficiency of Salinomycin fed group was highly significantly (p$lt;0.01) better than that of control group. However, no significant difference was found between Salinomycin and Colistin fed group. 4. It seemed that Salinomycin fed group utilized more efficiently the dry matter, crude protein. Crude fat, and total carbohydrate, although no statistical differences were found among treatments. 5. In general, carcass quality was not affected by the addition of Salinomycin.

육성돈에 대한 수수의 사료적 가치

한인규,하종규 ( In K . Han,Jong K . Ha ) 한국축산학회 1977 한국축산학회지 Vol.19 No.3

To compare the nutritive values of sorghum and corn for growing-finishing swine, a feeding trial was conducted for 12 weeks with a total of 90 heads of three-way crossbred among Landrace × Yorkshire × Birkshire (♂ 45, ♀ 45) replacing 75% corn in swine diet by sorghum grain at the levels of 0. 25. 50 and 75% on a weight basis and other supporting items were also evaluated by pertinent analyses. The result obtained are summarized as follows: (1) It was found that sorghum was low in crude protein and crude fat when it was compared with corn. However, both grains were about equal in amino acid composition. The values of DE and ME of sorghum were 3,567 and 3,168 ㎉/㎏, respectively and those of corn were 3,639 and 3,201 ㎉/㎏, respectively. In general, nutrients in corn were more digested than those in sorghum. (2) Partial or complete substitution of sorghum for corn in growing-finishing swine diet did not affect the growth rate but increased feed comsumption and feed conversion rate. Digestibility of crude protein, crude fat, nitrogen retention and energy digestibility or metabolizability tended to be decreased and digestibility of crude fiber improved as the level of sorghum in the rations increased. Meanwhile, the digestibilities of dry matter and nitrogen free extract were not affected by the substitution of sorghum for corn in the diets of growing finishing swine. It was apparent that commercial diet(control diet) showed low nutritive value compared with experimental diets when evaluated from the results of feeding trial arid balance trial. (3) Carcass quality evaluation revealed that the backfat thickness of pigs tended to be thinner and loin eye area was larger as the level of sorghum increased. However, cut yield percentage was approximately equal among pigs fed different level of sorghum. (4) When calculated from current local price of sorghum, feed price needed to produce 1㎏ body weight was increased with the increased sorghum level. However, gross income for sorghum fed group was higher than that for corn fed group due mainly to the better carcass quality revealed by the former group. Based upon the results of present study, it may be concluded that sorghum is somewhat inferior to corn in nutritive values for growing-finishing swine. However, complete substitution of sorghum for corn in the rations of growing-finishing swine may be possible, if the relative price for sorghum to corn are proper.