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Islam, M.R.,Ishida, M.,Ando, S.,Nishida, T.,Yoshida, N.,Arakawa, M. Asian Australasian Association of Animal Productio 2004 Animal Bioscience Vol.17 No.2
The effect of eight varieties of grain and forage type whole crop rice (Oryza sativa L Japonica) each harvested at four stages of maturity were investigated for morphology and yield, proportion of botanical fractions, fermentatability and chemical composition in an $8{\times}4$ factorial experiment. All crops were sown in 1997 at Saitama Prefecture, Japan under identical condition and harvested on 10, 22, 34 and 45 days after flowering in 1998. Total DM yield of forage type varieties was similar to that of the highest yield of grain type varieties. However, while yield of forage type varieties was attributed to higher proportion of straw than head, the reverse was in the case of grain type varieties. Yield in line with the proportion of head increased (p<0.001), but in contrast proportion of straw decreased (p<0.001) with the increase in maturity. Silage fermentability of grain type varieties was better than forage type varieties. Fermentability improved with the increase (p<0.001) in maturity suggesting that the moisture content should be reduced to improve fermentation quality. Forage type varieties contained higher (p<0.001) ash, crude fat (EE), organic cell wall (OCW) and acid detergent fiber (ADF), but contained lower crude protein (CP), organic cell content (OCC), CP in OCC and nitrogen-free cell wall extract (NCWFE) than the grain type varieties. The ash, CP, EE, Oa (60% digestible OCW), Ob (40% digestible OCW), OCW, ADF and acid detergent lignin (ADL) decreased (p<0.001), but OCC and NCWFE increased (p<0.001) with the increase in maturity. It is concluded that stage of maturity not only increases yield and proportion of head, but also improved the fermentation quality and increases quality chemical composition (except CP) of whole crop rice. Forage type varieties may be as good as grain type varieties in terms of yield, but fermentation quality and chemical composition may not be as good as that of grain type varieties.
Islam, M.R.,Ishida, M.,Ando, S.,Nishida, T.,Yoshida, N.,Arakawa, M. Asian Australasian Association of Animal Productio 2004 Animal Bioscience Vol.17 No.11
The effect of eight varieties of whole crop rice silage (WCRS) harvested at four stages of maturity were investigated for in situ DM and N degradability, ME and MP yield and content in an 8${\times}$4 factorial experiment. The varieties were Akichikara, Fukuhibiki, Habataki, Hamasari, Hokuriku 168, Kusanami, Tamakei 96 and Yumetoiro. Hamasari and Kusanami were forage varieties while all others were grain varieties. Forages were harvested on 10, 22, 34 and 45 days after flowering, ensiled and kept in airtight condition. Between 45 and 49 days after ensiling, silages opened, chopped and milled green to pass through 4 mm screen. Samples were incubated in the rumen of two Holstein steers for 0, 3, 6, 9, 12, 24, 48, 72 and 96 h over eight 4 d periods. Bags at 0 h were washed in a washing machine. Variety affected DM (p<0.001: except 'a+b', p<0.01) and N (p<0.001) degradability characteristics of WCRS. Stages of maturity also affected DM (p<0.001: except 'a+b', p<0.05; 'c', p<0.08) and N (p<0.01: except 'c', p<0.05) degradability characteristics of WCRS. Interactions between variety and stages of maturity occurred in all DM (p<0.001) and N (p<0.001) degradability characteristics except (p>0.05) for DM 'b', DM 'c', DM 'a+b' nd N 'c'. Effective DM degradability was higher in grain varieties than forage varieties and degradability increased with maturity. N availability decreased only slightly with maturity. Variety was the key factor for N degradability characteristics of WCRS since variety accounted for most of the total variation for degradability characteristics. Both ME and MP content and yield were higher (p<0.001) in grain varieties, and they increased (p<0.001) with the maturity. The results clearly demonstrated that the grain type varieties contained higher ME and MP content than forage varieties, and increase in maturity increases both ME and MP content of WCRS.
Zhang, Zhan,Lim, Jong Min,Ishida, Masatoshi,Roznyatovskiy, VladimirV.,Lynch, Vincent M.,Gong, Han-Yuan,Yang, Xiaoping,Kim, Dongho,Sessler, Jonathan L. American Chemical Society 2012 JOURNAL OF THE AMERICAN CHEMICAL SOCIETY - Vol.134 No.9
<P>Novel hybrid cyclo[<I>m</I>]pyridine[<I>n</I>]pyrroles have been synthesized using Suzuki coupling.Their NMRand optical spectroscopic features and solid state structural parametersprovide support for the proposal that these species are best describedas locally aromatic compounds devoid of long-range intersubunit conjugation.However, an extension of the π-conjugation in the macrocyclescan be realized through protonation, as inferred from optical spectroscopicand X-ray diffraction-based structural studies.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/jacsat/2012/jacsat.2012.134.issue-9/ja211985k/production/images/medium/ja-2011-11985k_0006.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/ja211985k'>ACS Electronic Supporting Info</A></P>
Islam, M.R.,Ishida, M.,Ando, S.,Nishida, T.,Yoshida, N. Asian Australasian Association of Animal Productio 2004 Animal Bioscience Vol.17 No.10
The nutritive value and utilization of whole crop rice silage (WCRS), Hamasari, at yellow mature stage was determined by three studies. In first study, chemical composition, in vivo digestibility and metabolizable energy (ME) content of WCRS was determined by Holstein steers. WCRS contains 6.23% CP, its digestibility is 48.4% and estimated TDN is 56.4%. Its ME content was 1.91 Mcal/kg DM. Gross energy (GE) retention (% of GE intake) in steers is only 22.7% most of which was lost through feces (44.7% of GE intake). It takes 81 minutes to chew a kg of WCRS by steers. In another study, the effect of Hamasari at yellow mature stage at three stages of lactation (early, mid and late lactation) and two levels of concentrate (40 or 60%) on voluntary intake, ME content and ME intake, milk yield and composition using lactating Holstein dairy cows were investigated. Total intake increased with the concentrate level in early and mid lactation, but was similar irrespective of concentrate level in late lactation. WCRS intake was higher with 40% concentrate level than with 60% concentrate. ME intake by cows increased with the concentrate level and WCRS in early lactating cows with 40% concentrate can support only 90% of the ME requirement. Milk production in accordance with ME intake increased with the increase in concentrate level in early and mid lactating cows but was similar in late lactating cows irrespective of concentrate level. Fat and protein percent of milk in mid and late lactating cows were higher with for 60% concentrate than 40%, but reverse was in early lactating cows. Solids-not-fat was higher with for 60% concentrate than 40% concentrate. Finally in situ degradability of botanical fractions such as leaf, stem, head and whole WCRS, Hamasari at yellow mature stage was incubated from 0 to 96 h in Holstein steers to determine DM and N degradability characteristics of botanical fractions and whole WCRS. Both DM and N solubility, rate of degradation and effective degradability of leaf of silage was lower, but slowly degradable fraction was higher compared to stem and head. Solubility of DM and N of stem was higher than other fractions. The 48 h degradability, effective degradability and rate of degradation of leaf were always lower than stem or head. In conclusion, voluntary intake of silage ranged from 5 to 12 kg/d and was higher with low levels of concentrate, but milk yield was higher with high levels of concentrate. Fat corrected milk yield ranged from 19 to 37 kg per day. For consistency of milk, early lactating cows should not be allowed more than 40% whole crop rice silage in the diet, but late lactating cows may be allowed 60% whole crop rice silage.