볏짚의 사료적가치증진에 관한 연구;제1보 요소의 첨가수준이 생볏짚의 사료적가치에 미치는 영향

육종융 한국축산학회 1965 한국축산학회지 Vol.7 No.1

It is the most important problem to improve the utilizability of nutrients in the rice straw, since more than billion (1,000,000,000) ㎏. of it was consumed by ruminants as major feed every year. It was the purpose of this experiment to study possibility for the improving effects of supplying various level of urea to the rice straw on the utilizability of nutrients by native goats. The results obtained are summarized as follows: (1) Both groups of animals fed rice straw only and fed rice straw supplemented with urea could not make any gain of body weight, although urea supplemented group lost slightly less amount of body weight than did control group. The weight loss in June was much higher (P$lt;0.01) than that in winter. (2) No significant difference in the amount of feed intake was observed. However, there was a significant (P$lt;0.01) difference in the teed intake between summer and winter. (3) There was a significant increase in the amount of excreted urine for the urea supplemented groups, also a difference was observed between period of experiment and among individual of animals. (4) Supplementation of urea had no effect on the pH, bacterial count and the number of protozoa in the rumen. (5) The amount of urinary nitrogen was increased as the level of urea increased. All experimental animals were in negative nitrogen balance. (6) It was found that supplementation of urea improved only the digestibility of protein of rice straw, and did not improve those of the other nutrients and energy. (7) Digestible nutrients, TDN, and starch value of raw rice straw and urea verb computed.

볏짚의 사료적가치증진에 관한 연구;제3보 석회볏짚에 대한 요소첨가가 사료적가치증진에 미치는 영향

육종융 한국축산학회 1965 한국축산학회지 Vol.7 No.1

An experiment with native goats was carried out to study the effect of urea supplementation to the lime treated rice straw on the palatability, nitrogen utilization, rumen microorganisms status, and digestibility of the lim treated rice straw. The results obtained are summarized as follows: (1) The amount of feed intake was much greater for animals fed lime treated rice straw than for animals fed raw rice straw. It is observed that the feces output is closely related to the amount of feed intake. It is concluded that treating raw rice straw with lime would increase the palatability of the diet. However, animals in all treatment uniformly lost the body weight. (2) The pH value and the number of bacteria in the rumen were slightly higher for the animals fed lime treated rice straw than for animals fed raw rice straw, but the difference was not significant statistically. Although, there was no significant difference in protozoal count between treatment, there was four times higher for urea supplemented lime treated rice straw group than raw rice straw group which already published in report I. (3) The digestibility of protein was significantly (P$lt;0.05) improved by the supplementation of urea to lime treated rice straw. However, the level of supplementation of urea did not affect the digestibility of urea. No difference in the digestibility of other nutrients in the ration was observed. (4) Digestible nutrients, total digestible nutrient, and starch value of lime treated rice straw were computed.

유방을 닦는 물의 온도가 유우의 유량과 유질에 미치는 영향

육종융 한국축산학회 1965 한국축산학회지 Vol.7 No.1

This experiment was conducted to study the effect of the temperature of water that has been used to clean udder before milking on the amount of total output, butter fat, solid-not-fat, density, and pH of milk, in order to study the seasonal effect, the experiment was carried out during three different season of year, i.e., Spring, Summer, early Winter. Three different levels of temperature of water employed during first period (spring) were 30, 35, 40℃; and those of second period (Summer) were 15, 30, and 40℃; and those of third period (early Winter) were 10, 22, and 30℃, respectively. Three milking Holstein Cows were used under the design of 3×3 Latin square for this experiment. The results obtained are summarized as follows: (1) A significant difference (P$lt;0.05) on the total output of milk was observed only for the first period of this experimentation. No difference in seasonal effect was detected. (2) Although a significant difference in the milk fat output, production of solid-not-fat, density, and pH of milk was obtained among individual, but not obtained between treatment. However, the amount of milk fag and density was higher for the milk produced during Winter than those produced during Spring and Summer. (3) The present results agree with those published in the past. Further study may be needed to deny the favorable effect of warm water that has been used to clean the udder before milking on the production of milk. It is suggested by the present data that cleaning udder for udder tumour after parturition with warm v. seer of temperature of 30∼40℃ would help the secretion of milk from udder.

볏짚의 사료적가치증진에 관한 연구;제4보 석회볏짚에 대한 요소 및 열량사료의 첨가가 그 이용성에 미치는 효과

육종융 한국축산학회 1965 한국축산학회지 Vol.7 No.1

This experiment was conducted, to study the effects of the addition of urea or/and crushed barley grain on the utilizability of the lime treated rice straw which is deficient in protein and energy with native male goats by the 4×4 Latin square design. The results obtained are summarized as follows: (1) The body weight of animals was slightly decreased in treatment 1 (lime rice straw alone fed), treatment 2 (lime rice straw supplemented with crashed barley grain) and treatment 3 (lime rice straw supplemented with urea.). However, animals in treatment 4 (lime rice straw a supplemented with crashed barley and urea) slightly increased the body weight by 0.96 ㎏ per animal during the experimental period. It was concluded that supplementation of 50 g. of crashed barley and 3 g. of urea per day per goat on lime rice straw could maintain the body weight. The palatability of lime rice straw was unproved by supplementation of crashed barley. The amount of excreted feces and urine was not affected by the addition of urea or/and crashed barley on the lime rice straw. (2) The number of bacteria and protozoa in the rumen juice were slightly higher for the animals fed lime rice straw supplemented with crashed barley and urea than for animals fed diets with T₁, T₂, and T₃, but the difference was not significant statistically. Although, there was highly significant (P$lt;0.01) differences in the bacterial count among experimental periods, there was no significant difference in protozoal count. It was observed that the number of bacteria and protozoa in the rumen greatly decreased during hot weather of the summer. (3) All experimental animals were in negative nitrogen balance. However, in true nitrogen balance was shown positive in all treatment except T₁. It was significantly (P$lt;0.05) different among treatments. The digestibility of feed energy and protein was significantly (P$lt;0.05 for feed energy, P$lt;0.01 for protein) improved by the supplementation of crashed barley and urea to lime rice straw. However, the digestibility of other nutrients in the diet was not difference significantly. (4) Digestible nutrients, total digestible nutrient, and starch value of lime rice straw, crushed barley and urea were computed.

볏짚의 사료적 가치증진에 관한 연구;제2보 생볏짚과 석회 볏짚에 대한 요소첨가의 효과

육종융 한국축산학회 1965 한국축산학회지 Vol.7 No.1

This experiment was conducted to study the effect of the supplementation of urea to the raw rice straw and the lime treated straw on the utilization of protein and crude fiber. The results obtained from native goats are summarized as follows: (1) The body weight of animals was uniformly decreased throughout the experimental period. The rate of feed consumption was much higher for the animals fed lime treated rice straw than for the animals fed raw rice straw. The amount of excreted feces and urine was not affected either by the treatment of lime addition or urea. (2) The average pH of rumen juice(7.6) in the animals fed by lime treated rice straw with or without supplementation of urea was higher than the animals fed by raw rice straw. It is apparent that formation of calcium carbonate would cause the rise in pH, since increased production of calcium carbonate would be resulted from the addition of lime by the following reaction; Ca(OH2)+CO2→CaCO3+H2O The number of bacteria and protozoa in the rumen of animals fed lime treated rice straw was much higher than control group. (3) It is also observed that the animals fed lime treated rice straw excreted considerably less amount of nitrogen in the urine. The digestibility of protein was significantly (P<0.01) improved by the supplementation of urea to the lime treated rice raw. However, no difference in the digestibility of N.F.E and energy of the ration, although the digestibility of crude fiber was slightly improved by treating the rice straw with lime. (4) The digestible nutrients, T.D.N. and starch value of raw rice straw, lime treated rice straw, and urea were calculated.

한국 소 비육에 있어서 사료 급여방식이 비육효과에 미치는 영향

육종융,김진욱 ( Chong Yung Yuk,Jin Uk Kim ) 한국축산학회 1975 한국축산학회지 Vol.17 No.3

Six Korean yearling bulls were employed in two experiments to study the effect of feeding methods, i.e., feeding concentrates and Gutted native grass hay separately (control feeds) or mixed together (test feeds). The double-reversal design was used in this experiment. The results obtained were summarized as follow: 1. Amount of hay intake in test group was larger than that in control group. but the difference was not significant. 2. Body weight gains of the bulls fed control feeds were heavier than that of test feeds. The average daily gain was 1.21㎏ for control group and 1.03㎏ for test group, but the difference was not statistically significant. 3. During the two experimental periods, bulls of control group consumed less DCP and TDN for 1㎏ body weight gain than that of test group. 4. The height of hip cross and length of heart girth of control bulls were longer than that of test bulls. Withers height and body length of test bulls, however, were longer than that of control bulls.

제초제에 의한 초지개량시험;1. 제초제의 처리가 목초의 정착과 수량에 미치는 영향

김동암,육종융,김문철 한국축산학회 1977 한국축산학회지 Vol.19 No.2

An experiment was carried out during 1975∼1976 to determine effective methods involved in the introduction of pasture species into native pasture treated with herbicides. In this experiment the herbicides with a residiual action, dawpon and that without residiual action, gramoxone were used to suppress or destroy native grass prior to oversowing. The following results were obtained: (1) Gramoxone applied at the rate of 148㎖ a.i. per 10a 1 week before oversowing gave 91 percent apparent top kill of all plants in native pastures, but dawpon 2.6㎏ a.e. per 10a 5 weeks before seeding killed nearly 100 percent all plants except broad-leaved weeds. (2) Establishment of ladino clover was not affected by the application of herbicides, but that of grasses was superior when sown after application of herbicides. Establishment of grasses was best where the application rate of gramoxone was 148㎖ per 10a 1 week before oversowing. (3) Dry matter yield of pasture species in plots sprayed with gramoxone and dawpon was increased 25.9 to 83.3 percent in the year after application. However, no significant differences in dry matter yield of pasture species among the treatments were observed. The highest yield was obtained .from plot sprayed with 148㎖ of gramoxone 1 week before oversowing. (4) Botanical analysis at the last cutting showed that native grass of original pasture was reduced by gramoxone application and oversowing to 21%o, and by dawpon and oversowing to 30%, while the native grass on the control reduced to 59%. (5) It was found that the application of herbicides before oversowing was thought to be very effective. Gramoxone was outstanding in this respect.

반추가축의(反芻家畜) 사료섭취량 조절과 반추에(反芻) 관한 문헌적 고찰

배동호,육종륭 한국낙농학회 1981 韓國酪農學會誌 Vol.3 No.2

The subject is reviewed with respect to the regulatory of feed intake in the ruminants. The importance of physical and physiological or metabolic regulatory mechanisms are discussed in relation to their effects upon the formation of various metabolites known to be rebated to feeding. Also, reviewed the role of rumination as a physical regulatory mechanisms.

조사료에 (組査料) 대한 일반성분분석방법과 Van Soest 분석방법의 비교에 대하여

최윤재,육종륭 ( Yun Jae Choi,Chong Yung Yuk ) 한국낙농학회 1981 韓國酪農學會誌 Vol.3 No.1

조사료 (粗飼料) 로서 볏짚 , 야건초에 옥수수 사일리지 혼용급여 (混用給與) 가 유우의 Rumen VFA 와 유조성 (乳組成) 에 미치는 영향

이기태,육종륭 ( Kee Tae Lee,Chong Yung Yuk ) 한국낙농학회 1980 韓國酪農學會誌 Vol.2 No.1