Faculty Profiles - NISHINO Naoki

Papers - NISHINO Naoki

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Effect of addition of intact or alkalized lucerne juice at ensiling on the nutritive value of rice straw silage Reviewed

Nishino, N, Ohshima, M, Yokota, H

Asian-Australasian Journal of Animal Sciences 5 487 - 494 1992

Nutritive value of rice straw ensiled with intact or alkalized Italian ryegrass green juice Reviewed

Nishino, N, Ohshima, M, Yokota, H

Journal of Japanese Society of Grassland Science 37 ( 2 ) 203 - 212 1991

Authorship：Lead author Language：English Publisher：Japanese Society of Grassland Science

Freshly harvested Italian ryegrass was disintegrated with a herbage crusher and pressed out green juice (GJ) with a screw press. The GJ was used as a protein supplement source for rice straw (RS). Rice straw was mixed with intact GJ (GJ・RS) and with NaOH or NH_3 (4% of RS dry matter) treated GJ (GJ・NaOH・RS or GJ・NH_3・RS) at 3:7 ratio on fresh weight basis and ensiled into polyethylene bags. Rice straw ensiled with water was also prepared as the control (W・RS). Crude protein content of RS was increased from 5.0 to 7.9% in dry matter basis by mixing intact or NaOH treated GJ and further increased to over 25% by NH_3 treated GJ. The control W・RS silage contained a trace amount of lactic acid and showed a butyrate type fermentation. The addition of intact GJ to RS significantly increased the lactic acid content, and reduced the butyric acid content, NH_3-N/TN and the pH value of the silage. In contrast to this, the addition of NaOH or NH_3 treated GJ increased the pH value, the butyric acid content and NH_3-N/TN of the silage, and GJ・NH_3・RS silage showed the lowest chemical quality. In the feeding trial, four castrated male goats were allocated in a 4×4 Latin-square and fed the 3:1 (DM basis) mixed ration of RS silage and wheat bran. Besides them, urea was supplemented to W・RS silage at the time of feeding to adjust the nitrogen intake except for that from NH_3 treated silage. The addition of intact GJ to RS at ensiling had little advantage to feeding urea with W・RS silage in respect to nutrient digestibilities but slightly improved nitrogen balance of goats. Compared with goats fed W・RS and GJ・RS silages, those fed GJ・NaOH・RS silage showed significantly higher fiber digestibilities, less urinary nitrogen excretion and more nitrogen retention with the reduction of ruminal NH_3-N and blood urea nitrogen concentrations. The goats fed GJ・NH_3・RS silage showed the highest nutrient digestibilities and nitrogen retention. These results suggest that the alkali treatments increased energy supply from fiber and consequently increased nitrogen uptake of rumen microbes. The disadvantage of feeding GJ・NaOH・RS compared with GJ・NH_3・RS was probably due to the insufficient nitrogen supply to rumen microbes for the maximum fiber digestion and protein synthesis.

DOI： 10.14941/grass.37.203

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Other Link： http://agriknowledge.affrc.go.jp/RN/2010480737

Ruminal acid concentrations of goats fed hays and silages prepared from Italian ryegrass and its pressed cake Reviewed

Ohshima, M, Miyase, K, Nishino, N, Okajima, T, Yokota, H

Asian-Australasian Journal of Animal Sciences 4 59 - 65 1991

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