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국산박류의 사료적 가치에 관한 연구 5 . 난용계 유추에 대한 국산박류 비교시험
정정수,정인걸,한인규 ( Chung S . Chung,In K . Chung,In K . Han ) 한국축산학회 1978 한국축산학회지 Vol.20 No.1
This experiment was conducted to compare the nutritive values of locally produced oil meals for egg-type starters from birth to 6 weeks of age. Six hundred white Loghorn chickens of Hisex strain were devided into two groups i.e. group A (partial substitution for soybean lil meal) and group B(complete substitution for soybean oil meal). The group A and B were splited into 5 treatments, namely soybean oil meal (SBOM), perilla oil meal (POM), sesame oil meal (SOM), rapeseed oil meal (ROM) and corn gluten meal (CGM), respectively. The results obtained are summarized as follows. 1. The protein contents of CGM, SEOM, SOM, POM and ROM used in this experiment were 68.79, 44.33, 40.49, 39.16 and 32.25%, respectively. The methionine content of SEOM(0.53%) was found to be the lowest and of CGM (1.45%) was the higest. On the other hand, the lysine content of SOM(0.67%) was lowest and that of SBOM (2.06%) was the highest. 2. The body weight gains of CGM and SBOM treatment in the group A were higher than other treatments and that of SOM treatment was the lowest (P$lt;0.01), as were the case in the group B. The feed intake and feed efficiency showed the same tendency as the body weight gain. 3. It was found that there were no differences in nutrients utilizability among treatments.
국산박류의 사료적 가치에 관한 연구 7 . 산란계에 대한 국산박류비교시험
정정수,한인규 ( Chung S . Chung,In K . Han ) 한국축산학회 1978 한국축산학회지 Vol.20 No.1
This experiment was conducted to compare the nutritive values of locally produced oil meals for laying hens from 21 weeks to 46 weeks of age. Four hundred White Leghorn hens of Hisex strain were divided into two groups, i.e. group A (partial substitution for soybean oil meal) and group B (complete substitution for soybean oil meal). The group A and B were splited into 5 treatments, namely, soybean oil meal (SBOM), perilla oil. meal (POM), sesame of meal (SOM), rapeseed oil meal (ROM) and corn gluten meal (CGM), respectively. The results obtained are summarized as follows. 1. Hen-day egg production rate of SBOM, SOM, ROM, CGM and POM treatment was 83.2, 81.5, 81.2, 80.6 and 80.2%, respectively when these oil meals were partially substituted for soybean oil meal, and that of SBOM, CGM, POM, SOM and ROM treatment was 80.9, 80.7, 78.9, 76.4 and 76.1%, respectively when the experimental meals were completely substituted. It is clear that soybean oil meal fed chicks showed the best results in egg production. The hen-day egg mass of SBOM, CGM, POM, ROM and SOM treatment was 48.3, 46.6, 46.2, 46.1 and 46.3 g in the group A and 46.7 45.5, 45.1, 43.1 and 42.2 g in the group B, respectively. Average egg size of SBOM fed treatment was 58.1 g in the group A and 57.7 g in the group B indicating that the egg size for SBOM treatment was the largest among treatments. Data also revealed that the egg size of 56.7g for ROM treatment in the group A and 55. 2g for SOM treatment in the group B were the smallest. Somewhat more shelless eggs were produced by ROM treatment than by other treatments. In the group B, the correlation coefficiency between the body weight gains during the growing period and the hen-day egg mass during the laying period was found to be +0.91. 2. Egg yolk color was somewhat improved by feeding corn gluten meal than the other vegetable protein feeds. Egg shell was somewhat thinner for ROM treatment than other treatments. 3. In general, the body weight gain during the laying period, as was the same during the growing period, was significantly (P$lt;0.05) higher for SBOM and CGM fed chicks and lower for SOM treatment. Data indicated that the mortality for CGM treatment was highest and that for SBOM treatment was lowest. 4. When the mean values of major economic characteristics in the group A and B were summarized, it was apparent that the nutritive values of locally produced oil meals could be improved when these were used with soybean oil meal. $lt;표생략$gt;
정정수(Jung-Soo Chung),김영식(Young-Sik Kim),장지웅(Ji-Woong Jang),노종선(Jong-Seon No),정하봉(Ha-Bong Chung) 한국통신학회 2008 韓國通信學會論文誌 Vol.33 No.11C
[1]에서 LCZ 수열군의 2배 확장을 제안하였다. 본 논문에서는 [1]에서의 2배 확장방법을 일반화하는 새로운 확장방법을 제안한다. 이 생성방법을 사용하면 인수가 (N,M,L,ε)인 q진 LCZ 수열군은 인수가(pN,pM,p「(L+1)/p」-,pε)인 q진 LCZ 수열군이 된다. 이 때, p는 소수이고 p는 q의 약수다. 특히 L≡p-1modp 일 때, 확장된 q진 LCZ 수열군의 인수는 (pN,pM,L,pε)이 된다. In this paper, a new extending method of q-ary low correlation zone(LCZ) sequence sets is proposed, which is a generalization of binary LCZ sequence set by Kim, Jang, No, and Chung. Using this method, q-ary LCZ sequence set with parameters (N,M,L,ε) is extended as a q-ary LCZ sequence set with parameters (pN,pM,p「(L+1)/p」-1,pε), where p is prime and p|q.
국산박류의 사료적 가치에 관한 연구 6 . 난용계 중·대추에 대한 국산박류비교시험
정정수,한인규 ( Chung S . Chung,In K . Han ) 한국축산학회 1978 한국축산학회지 Vol.20 No.1
This experiment was conducted to compare the nutritive values of locally produced oil meals for egg-type growers from 6 weeks to 21 weeks of age. Six hundred White Leghorn chickens of Hisex strain were devided into two groups, i.e. group A (partial substitution for soybean oil meal) and group B (complete substitution for soybean oil meal). The group A and B were splited into 5 treatments, namely, soybean oil meal (SBOM), perilla oil meal (POM), sesame oil meal (SOM), rapeseed oil meal (ROM) and corn gluent meal(CGM), respectively. The results obtained are summarized as follows. 1. There were no differences in body weight gain, feed intake and feed efficiency during the growing period of 6-21 weeks among treatments. The body weight gains obtained during the total growing period including the starter period (Exp` 5) of CGM, SBOM, POM, SOW and RoM fed chicks were 1604.0, 1603.0, 1582.7, 1542.6 and 1513.6g in the group A and 1578.8, 1568.3, 1518.8, 1476.2 and 1484.6g in the group B, respectively. The mean values of body weight gains during the total growing period in the group A and B were 1569.1g, 1525.3g and of feed efficiency in the group A and B were 7.08, 7.25, respectively. 2. No differences in nutrients utilizability during the growing period of 6-21 weeks was observed among treatments. It was found that the rate of nitrogen retention was somewhat decreased gradually toward the maturity of chicks progressed.
고유지 옥수수 급여가 육성 비육돈의 도체특성 , 육질 , 돈육의 지방산 조성 및 콜레스테롤 함량에 미치는 영향
정정수,이재준,정영철,강정선,박홍양,김천제 ( C . S . Chung,J . J . Lee,Y . C . Jung,C . S . Kang,H . Y . Park,C . J . Kim ) 한국축산학회 1998 한국축산학회지 Vol.40 No.4
The current study was conducted to determine the effects of high oil com(HOC) on carcass traits and pork quality as well as fatty acid composition, and cholesterol concentrations of loin muscle. Total 104 pigs(Barrow; 52, Gilts; 52) were fed diets containing typical com plus animal fat(control) or high oil corn(HOC) replacing typical corn and animal fat for the final 85 days before slaughter. There were no differences in carcass traits and pork quality between pigs fed HOC diet and control diet. The proportion of polyunsaturated fatty acids of loin muscle and loin fat from pigs fed HOC-diets was higher than that of pigs fed by regular com diet(P$lt;0.05). The cholesterol concentration of loin muscle of HOC-diet pigs tended to be lower than that of the control diet pigs.
정정수(C . S . Chung),이택원(T . W . Lee) 한국축산학회 1988 한국축산학회지 Vol.30 No.1
The current study was undertaken to determine the effects of porcine growth hormone (pGH) administration on lipogenesis in rats. Growing male rats were injected (SC) with either pGH (1 ㎎/head) or bicarbonate buffer for 14 days. After last injection, rats were killed and epididymal adipose tissues were removed and sliced. Sliced tissues were incubated for one hour in KRB buffer containing various concentrations of porcine insulin and C^(14)-glucose. Lipogenesis, determined as glucose conversion to total lipids, was significanlay (P◎0.05) decreased in pGH - treated rats.
정정수(C . S . Chung),권관(K . Kwon),한규범(K . B . Han),김인수(I . S . Kim) 한국축산학회 1989 한국축산학회지 Vol.31 No.11
The present study was undertaken to determine the effects of recombinant porcine growth hormone(rpGH, supplied by Lucky, Ltd., Korea) on growth performance of growing pigs. Twelve barrows with an average initial live weight of 48kg were allocated to either control group(n=6) or rpGH group(n=6). Recombinant rpGH (70ug/kg BW) or vehicle was injected in the extensor muscle daily for 49 days. Pigs were fed a diet containing 16.45% of crude protein and 0.85% of lysine. As expected, serum rpGH was elevated by rpGH injection. Administration of rpGH increased average daily gain by 6%(1.04 vs 1.11kg), improved feed/gain by 10%(3.203 vs 2.895; p $lt;0.05), decreased backfat thickness by 19%(3.60 vs 2.91cm; p $lt;0.01), and increased loin eye area by 5%(36.84 vs 38.53㎠). These results indicate that rpGH administration improves swine growth performance, suggesting that considerable potential exists for development of a GH-based growth promotant for the swine industry.
성장흐로몬이 돼지 지방조직의 지방합성에 미치는 영향 뇌하수체성장호르몬과 유전공학성장호르몬과의 비교
정정수(C . S . Chung),권관(K . Kwon),김인수(I . S . Kim) 한국축산학회 1990 한국축산학회지 Vol.32 No.12
The current study was undertaken to determine whether porcine growth hormone(pGH) inhibited lipogenesis in swine adipose tissue, if so to compare pituitary pGH(ppGH) and recombinant pGH(rpGH). Vehicle(control), ppGH or rpGH (70ug/kg BW) was injected daily into barrows weighing 85kg for 7days. Following the 7 day treatment, subcutaneous adipose tissue biopsies were taken and explants of ∼ 10mg wet weight were prepared. The explants were incubated in KRB buffer containing various concentrations of insulin for 2 hours for measurement of lipogenesis. Basal and insulin-stimulated lipogenesis were markedly decreased in adipose tissues from ppGH and rpGH-treated pigs, compared to those from control pigs. These results partly explain the mechanism by which pGH administration reduces carcass fat in the growing pigs.