• Title, Summary, Keyword: TDN

Search Result 579, Processing Time 1.325 seconds

Study on Ruminal Disappearance and Energy Value of Corn Flake Using the Pressurized Steam Chamber (가압식 스팀 챔버를 이용한 옥수수 후레이크의 반추위 소실율 및 에너지 가치 평가에 관한 연구)

  • Park, Byung-Ki;Ahn, Jun-Sang;Chung, Ki-Yong;Cho, Sung-Myoun;Kim, Il-Young;Sim, Jae-Yoon;Kim, Min-Ji;Kwon, Eung-Gi;Shin, Jong-Suh
    • ANNALS OF ANIMAL RESOURCE SCIENCES
    • /
    • v.29 no.3
    • /
    • pp.95-105
    • /
    • 2018
  • This study aimed to investigate the effect of using corn flakes, produced by pressurized steam chamber, on nutrient disappearance rate and energy value in three Hanwoo and three Holstein cows, implanted with a ruminal fistula. Corn flakes were categorized in 2 groups based on the chamber type: control (corn flakes produced using a steam chamber) and treatment (corn flakes produced using a pressurized steam chamber). Dry matter (DM) disappearance rate was 5.17% higher in treatment than in control (p<0.01). Starch disappearance rate was also higher in the treatment than in the control (p<0.01). Nitrogen free extract (NFE) and non-fiber carbohydrate (NFC) disappearance rates were 6.08 and 5.71% higher in treatment compared to control, respectively (p<0.01). In comparison by breed and incubation time, DM, starch, NFE, and NFC disappearance rates were higher in treatment than in control. The mean total digestible nutrients (TDN) was higher in treatment than in control (p<0.05). In comparison between Hanwoo and Holstein, TDN of corn flakes was slightly but not significantly higher in Holstein than in Hanwoo. Thus, these results indicate that the use of the pressurized steam chamber is recommended to increase the nutrient (starch, NFE, NFC etc.) disappearance rate and TDN.

Effect of Growth Stage and Variety on the Yield and Quality of Whole Crop Rice (생육시기 및 품종이 총체 벼의 수량 및 사료가치에 미치는 영향)

  • Kim, Jong-Geun;Chung, Eui-Soo;Ham, Jun-Sang;Seo, Sung;Kim, Meing-Joong;Yoon, Sei-Hyung;Lim, Young-Chul
    • Journal of The Korean Society of Grassland and Forage Science
    • /
    • v.27 no.1
    • /
    • pp.1-8
    • /
    • 2007
  • This experiment was conducted to determine the effect of growth stage and variety on the yield and quality of whole crop rice (WCR) at National Livestock Research Institute, RDA from 2003 to 2005. Two types of rice ("Chucheong" for food and "Hamasari" for feed) were harvested at six different growth stages (heading, flowering, milk, dough, yellow ripening and fully ripening stage). Crude protein content decreased with progressed maturity at harvest. As growth stage delayed, TDN (total digestible nutrient) content of all rice varieties increased. The average TDN content of two type of rice was about 60% (59.3) which was calculated from ADF(acid detergent fiber) content. The contents of ADF and NDF(neutral detergent fiber) decreased with harvest maturity. The highest DM(dry matter) yield was at the ripening stage (p<0.05) and "Chucheong" gave higher yields than for "Hamasari". In this experiment, the DM yield of all varieties was low. The yield of TDN followed a similar trend to DM yield. According to this results that dough to yellow ripening stage of harvest maturity will be recommendable as proper harvest time for whole crop rice silage.

Effect of Tillage System and Fertilizer Type on the Forage Yield and Quality of Italian Ryegrass (경운방법 및 비료종류가 이탈리안 라이그라스의 사초수량 및 품질에 미치는 영향)

  • Kim, Jong-Duk;Abuel, Shwin J.;Jeon, Gyeong-Hyeop;Kwon, Chan-Ho
    • Journal of The Korean Society of Grassland and Forage Science
    • /
    • v.29 no.4
    • /
    • pp.313-320
    • /
    • 2009
  • This experiment was conducted to evaluate the effect of tillage system and fertilizer type on the forage yield and quality of Italian ryegrass. This experiment was a $2{\times}2$ factorial arrangement for two tillage systems (tillage and no-tillage) and two fertilizer type (chemical and manure compost). The plant height, dry matter (DM) content, DM yield, TDN (total digestible nutrients) yield, and CP (crude protein) yield have significant differences in tillage system of Italian ryegrass. Italian ryegrass cultivated with tillage (plow and rotary till) had lower plant height, DM yield, TDN yield and CP yield than no-tillage, while its DM content showed the opposite results. However, there were no significant differences in the results on fertilizer types. Neutral detergent fiber (NDF) and acid detergent fiber (ADF) contents were significantly higher in no-tillage compared to tillage. However, there was no significant difference in CP content on tillage system. TDN and relative feed value (RFV) were higher in tillage than no-tillage system (p<0.01). The TDN content was lower when using manure as fertilizer. No significant effects were observed for NDF and RFV in fertilizer type of Italian ryegrass. Based on the results of this study, tillage system and fertilizer type affected forage quality as well as forage yield. Forage yield of no-tillage was higher compared to tillage.

Estimation of Availability and TDN of Various Silages by Cattle (소에 의한 다양한 사일리지의 이용율 및 TDN 평가)

  • Ji, Byung-Ju;Jin, Guang-Lin;Shinekhuu, Judder;Qin, Wei-Ze;Oh, Young-Kyoon;Sohn, Yong-Suk;Seo, Sung;Song, Man-Kang
    • Journal of The Korean Society of Grassland and Forage Science
    • /
    • v.30 no.2
    • /
    • pp.169-178
    • /
    • 2010
  • The present study was conducted with four ruminally fistulated cattle to examine the fermentation characteristics and effective degradability (ED) in the rumen, and whole tract digestibility and TDN values of various silages (whole crop rye, RS; whole crop barley, BS; Italian ryegrass, IRGS and sudangrass, SGS) which were produced in Korea. The pH of rumen fluid were not greatly affected by silage at most times after feeding but SGS decreased (p<0.049) the ruminal ammonia-N concentration as 7.28 mg/100 ml at 3h after feeding compared to other silages. An acetate proportion from SGS feeding was higher at 1h (p<0.018), 3h (p<0.004) and 6h (p<0.019) after feeding than those from other silages. The propionate ($C_2$) proportion, however, was greater (p<0.001~p<0.042) for the RS and BS than the corresponding values of other silages up to 6h after feeding while the lowest $C_2$ proportion was observed from SGS. The butyrate proportion was lowest (p<0.007~p<0.027) in the cattle fed BS at 1~6h after feeding among silages. An ED of dry matter (DM) in the rumen was highest (P<0.048) for RS as 59.64%, and was reduced in the order of BS (56.12%), IRGS (55.64%) and SGS (54.02%). Similar tendency was observed in the EDs of crude protein (p<0.014) and organic matter (OM, p<0.039). The whole tract digestibility of DM (p<0.032), neutral detergent fiber (NDF, p<0.034) and OM (p<0.041) of SGS was greatly reduced. The TDN value based on whole tract digestibility of silages was highest for RS as 61.1%, and TDN values of BS, IRGS and SGS were 57.1%, 57.9% and 50.7%, respectively. Based on the results obtained from the present study, components in various whole crop silages produced in Korea might affect the ruminal VFA proportion, and especially, NDF content could greatly influence on the TDN value of silage calculated based on the NDF content.

The Effect of Cattle Manure Application on Dry Matter Yield, Feed Value and Stock Carrying Capacity of Forage Crops in Gang-Wondo Area (강원도 지역에서 우분의 시용이 사료작물의 건물수량 사료가치 및 가축사육능력에 미치는 영향)

  • Noh, Jin-Hwan;Lee, Hee-Choong;Kim, Yoon-Joong;Park, Sang-Soo;Lee, Ju-Sam
    • Korean Journal of Organic Agriculture
    • /
    • v.21 no.2
    • /
    • pp.247-263
    • /
    • 2013
  • This study was conducted to investigate the effect of cattle manure application on productivity, feed value, and stock carrying capacity of forage crops in upland and paddy fields at Gang-Wondo area. In the result, dry matter yield of sorghum ${\times}$ sudangrass hybrids obtained was 15.12 ton/ha at the level of 150kg N/ha of composted cattle manure. Significantly highest values of crude protein and total digestible nutrients (TDN) yields obtained were 0.59 and 5.35 ton/ha at the level of 150kg N/ha of composted cattle manure in the first cutting, and 0.44 and 3.70 ton/ha at the level of 150kg N/ha of organic raw cattle manure in the second cutting, respectively. The values of $K_{CP}+K_{TDN}/2$ and $K_{ME}$ of sorghum ${\times}$ sudangrass hybrids obtained was 7.76 and 4.46 head/ha at the level of 150kg N/ha of composted cattle manure. The dry matter yield, crude protein and TDN yields of rice straw were 4.95, 0.16 and 2.75 ton/ha at the level of 100kg N/ha of organic raw cattle manure, and the values of $K_{CP}+K_{TDN}/2$ and $K_{ME}$ of rice straw were 1.89 and 3.43 head/ha. The dry matter yield of winter crops, rye+red clover was 4.36 ton/ha in upland field, and rye+hairy vetch was 4.19 ton/ha in paddy field at the level of 100kg N/ha of composted cattle manure. Crude protein and TDN yields of rye+red clover was 0.29 and 2.38 ton/ha at the level of 100kg N/ha of composted cattle manure in upland field, and rye+hairy vetch was 0.30 and 2.48 ton/ha at the level of 80kg N/ha of composted cattle manure in paddy field. The values of $K_{CP}+K_{TDN}/2$ and $K_{ME}$ of rye+red clover was 2.34 and 2.15 head/ha in upland field, and rye+hairy vetch were 2.27 and 2.11 head/ha in paddy field, respectively. As the result, the productivity, feed value, and stock carrying capacity of sorghum ${\times}$ sudangrass hybrids showed higher values with composted cattle manure than organic raw cattle manure. rye+red clover in upland field and rye+hairy vetch in paddy field were most adaptable mixed combinations for roughage production at Gang-wondo area, it may due to their highly productivity, feed value, and stock carrying capacity.

흑조위축병 이병률이 사일리지용 옥수수의 TDN 수량에 미치는 영향

  • 김동암;김종덕;이종경
    • Proceedings of the Korean Society of Grassland Science Conference
    • /
    • /
    • pp.78-79
    • /
    • 1999
  • 미국으로부터 도입된 18종의 옥수수 품종과 국내품종 1종을 가지고 1997년에 경기 수원, 경북 경산 및 충남 천안에서 사일리지 생산성 비교 시험을 수행하였고, 특히 흑조위축병(RBSDV) 이병률이 옥수수의 가소화 영양소 총량(TDN)에 어느 정도 영향을 미치는가를 알아보기 위하여 일련의 조사를 수행하였다.(중략)

  • PDF

Effect of FSH-P Dose and Energy Level on Normal Embryo Production in Hanwoo (한우에 있어서 FSH-P 투여량과 에너지수준이 정상수정란의 생산에 미치는 영향)

  • 임석기;전기준;우제석;장선식;박준철;정종원;윤상보
    • Journal of Embryo Transfer
    • /
    • v.12 no.3
    • /
    • pp.301-306
    • /
    • 1997
  • The present study was carried out to investigate effect of FSH -P dose and energy level on normal embryo production after superovulation in Hanwoo. The results obtained were as follows ; 1. There was a significant effect of dose of FSH-P on normal embryo production in Hanwoo(P$\pm$5.9), 40(4.9i5.7), 50mg(2.2$\pm$2.6). 2. The plasma P$_4$ levels on the first treatment day were higher group( >4ng /ml) than lower group( <=4ng /ml), produced significicantly(P<0.05) higher number of normal embryos. 3. There was a significant effect of energy level on normal embryo production in Hanwoo(P$\pm$6.0), number of normal embryos were higher than TDN 70%(5.1$\pm$6.5) and TDN 130%(4.4$\pm$2.6) 4. The donor returned to normal estrus after superovulation were 44.8, 28.4 and 29.9 days by TDN 70, 100 and 130%, respectively.

  • PDF

Response of Growth Characteristics and Yield of Silage Corns at Different Regions (재배지역별 사일리지용 옥수수 일반생육 및 수량 반응)

  • Son, Beom-Young;Kim, Jung-Tae;Lee, Jin-Seok;Baek, Seong-Bum;Kim, Wook-Han;Kim, Jong-Duk;Ko, Ki-Hwan
    • Journal of The Korean Society of Grassland and Forage Science
    • /
    • v.31 no.3
    • /
    • pp.251-260
    • /
    • 2011
  • This study was carried out to compare growth characteristics and yield of silage corn hybrids at four different regions (Hwaseong, Dangjin, Gochang and Pyeongchang). Two domestic corn hybrids, 'Kwangpyeongok' and 'Gangdaok', and two imported corn hybrids, 'P3394' and '32P75' were used in this study. Plant height and ear height ratio were not significantly different among corn hybrids. 'Kwangpyeongok' was the strongest of all corn hybrids for lodging. The others except 'Kwangpyeongok' were similar to lodging. All corn hybrids were excellent to stay-green. Incidence of southern corn leaf blight (Bipolaris maydis) was low at all corn hybrids. '32P75' was 10.1%, the most of all corn hybrids for incidence of BSDV (black streaked dwarf virus). 'Kwangpyeongok' and 'Gangdaok' were stronger than '32P75' for BSDV. Fresh yield of 'Kwangpyeongok' and 'Gangdaok' were the most of all corn hybrids as 74.85 and 76.68 ton/ha and 'P3394' was the least of all corn hybrids as 64.97 ton/ha. Dry matter yield as 18.83~21.92ton/ha and TDN yield as 12.73~14.52 ton/ha were not significantly different among corn hybrids.

Effect of Sowing Dates, Fertilizer Levels and Clipping Treatment on Forage Production and Quality of Barley(Hordeum vulgare L.) and Rye(Secale cereale L.) in Paddy field (답리작 대맥.호맥의 파종기.시비량 및 예취방법이 청예수량과 품질에 미치는 영향)

  • 최영원;이호진
    • KOREAN JOURNAL OF CROP SCIENCE
    • /
    • v.30 no.3
    • /
    • pp.340-346
    • /
    • 1985
  • Field experiments were carried out to investigate the effects of sowing dates, ferrilizer levels and clipping treatment of forage production and quality of barley and rye in paddy field. The field emergence rates in barley varieties was decreased rapidly at sowing after November. But in rye varieties, it was not decreased even in sowing until Nov. 3. Winter survival of barley and rye varieties were not affected by fertilizer levels. And winter survival decreased with delay in sowing dates in barley varieties, but, it was not influenced by sowing dates in rye varieties. The production of forage dry matter at heading stage was increased with fertilizer levels, and was decreased with delay in sowing dates. Content of crude protein and crude fat of dry forage at heading stage were increased with fertilizer levels. But, content of crude ash, crude fiber and TDN were not influenced by fertilizer levels. As increased fertilizer levels, NFE Content was decreased and TDN yield was increased with fertilizer levels. In comparisons of TDN yield between barley and rye varieties, TDN yield of rye were superior to those of barley. Clipping twice produced more forage yield than clipping once in both crops. However, optimum clipping interval was about 40 days between first and second clipping in rye but not determined in barley. The l2cm clipping height was the highest production in average total yield.

  • PDF