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- 검색키워드
- 저자 : Fujihara T. (검색결과 49 건)
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Orden, E.A.,Yamaki, K.,Ichinohe, T.,Fujihara, T. Asian Australasian Association of Animal Productio 2000 Animal Bioscience Vol.13 No.7
The effect of ammonia treatment and rice bran supplementation on the in situ rumen degradation of rice straw was determined using three Japanese Corriedale wethers fitted with permanent rumen cannula. About 4 g samples of diets containing 100% untreated rice straw (URS); 100% ammonia treated rice straw (ARS); 65% URS+30% rice bran (RB)+5% soybean meal (SBM) (T1); and 85% ARS+15% RB (T2) were incubated at 0, 4, 8, 16, 24, 48, 72, and 96 hours in the rumen of sheep to measure dry matter (DM), crude protein (CP) and neutral detergent fiber (NDF) degradability. The DM disappearance of ARS based diets were about 20% higher than that of URS based diets. Rice bran supplementation improved DM disappearance of URS but not on ammoniated straw. Degradation parameters showed that ammoniation increased rate (c) of straw degradation resulting to higher DM and fiber degradability but RB supplementation did not. ARS gave similar DM and CP solubility and effective rumen degradability (ED) with that of the supplemented groups indicating that ammoniation alone can give the same effect on rumen degradability of sheep receiving low quality roughage. All degradation parameters for NDF were consistently higher in ARS based-diets indicating improved fiber solubility. Rice bran supplementation did not affect degradation characteristics of the diets except on soluble DM and CP fraction (A) of URS but not on ARS.
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Fujihara, T.,Ichinohe, T.,Nakao, T. Asian Australasian Association of Animal Productio 1995 Animal Bioscience Vol.8 No.5
The effects of formic acid and formaldehyde treatment and methionine supplementation to ladino clover fibrous residue silage on eating and rumination behaviour were studied in sheep. From the ladino clover fibrous residue, two silage were prepared, either untreated or treated with formic acid and formaldehyde. Four experimental diets: untreated silage, treated silage, untreated silage with supplementation of methionine and treated silage with supplementation of methionine, were offered to four sheep at a restricted level of DM intake (2% of BW/d) twice daily in a two-way layout design. Methionine supplementation with the treated silage significantly (p < 0.05) reduced daily time spent eating, and consequently, markedly increased rate of eating. However, there was little effect of methionine supplementation on the daily time spent eating and eating rate for sheep offered untreated silage. Methionine supplementation with the treated silage reduced daily time spent ruminating, although the same effect was not observed for untreated silage. The rumination index (time spent ruminating/100 g DM eaten) was remarkably smaller (p < 0.05) with methionine supplement in feeding treated silage, although it did not differ for sheep offered untreated silage. There were no clear effect of methionine supplementation on the rumination efficiency (i.e. number of chews/bolus, bolus time and rumination chewing rate) both feeding untreated silage and treated silage.
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EATING AND RUMINATION BEHAVIOUR IN SHEEP FED A HAY DIET WITH AN ORAL SUPPLEMENT OF UREA
Fujihara, T.,Ichinohe, T.,Harumoto, T. Asian Australasian Association of Animal Productio 1994 Animal Bioscience Vol.7 No.4
The effect of orally supplemented urea on eating and rumination behaviour of sheep fed a low-quality hay was investigated in this study. Daily time spent eating was not influenced by ruminal addition of urea, thus the eating rate (g DM/min) also did not change with urea supplementation. The rumination appearance (the lag time after eating) tended to be shorted with urea supplement than without supplement, but not significantly (p>0.05). Daily time spent ruminating was in the range of 600-630 min/d, and rumination index (ruminating time/100 g DM ingested) was 85 min. on the average for all the treatments, but there were no significant differences among the values in each treatment. Daily number of rumination periods tended to be smaller with urea supplement than with no urea, but not significantly (p>0.05), and cyclic rate was almost constant in all the treatments. From these results, it may be concluded that an administration of urea in sheep receiving hay diet could have little effect on eating and rumination behaviour, when it was given at two times a day.
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Fujihara, T.,Matsui, T.,Hayashi, S.,Robles, A.Y.,Serra, A.B.,Cruz, L.C.,Shimizu, H. Asian Australasian Association of Animal Productio 1992 Animal Bioscience Vol.5 No.2
Nutritional status of macro minerals (Ca, Mg and P) in goats grazed on the native pasture was investigated for 2 years in Luzon Island, Republic of the Philippines. Three regions in Luzon Island (Los Banos; Southern area, Munoz, Nueva Ecija; Central area and Baguio; Northern area) were objected to collect the samples of forages and blood of goats on the pasture. The average values in Ca, Mg and P contents of all the forage samples were 0.29-1.32, 0.13-0.56 and 0.15-0.45% of dry matter, respectively, and these figures almost exceeded the required dietary levels for sheep. There was no obvious changes in mineral content of forages between the seasons of rainy and dry, or among regions. In blood Ca level, more than a half of goats (57.9%) without supplement showed the level below the lower limit, and the low level was not improved even when they fed with some supplemental concentrates. The plasma levels of Mg and P were satisfactory, referring to the lower limit of normal level in goats. It is, therefore, necessary to decide the requirement and to establish a most suitable technique for supplying Ca to grazing goats in Luzon Island.
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THE EFFECT OF MECHANICAL PROCESSING OF HAY ON THE EATING AND RUMINATION BEHAVIOUR IN SHEEP
Fujihara, T.,Harumoto, T. Asian Australasian Association of Animal Productio 1991 Animal Bioscience Vol.4 No.1
An experiment was carried out to investigate the effect of change in length of hay offered on eating and rumination behaviour in sheep using three types of hay diets (L: long, M: 8.0-cm cut, S: 1.2-cm cut) and 3 Japanese Corriedale wethers, and the experiment was designed as $3{\times}3$ latine square. The time spent eating per 100 g hay was significantly shorter with long (L) hay (p < 0.05) than with chopped (M and S) hay, and therefore, the eating rate (g D.M./min.) was significantly higher in the former (p < 0.05) than in the latter. Rumination appearance (the lag time after eating) tended to be longer with long hay than with chopped hay, but not significantly (p > 0.05). Daily time spent ruminating, the actual chewing time and daily number of chews tended to be more in feeding long hay than in feeding chopped hay, but not significantly. Daily number of rumination periods was significantly more with long hay (p < 0.01) than with chopped hay. Cyclic rate tended to be longer with long hay than with chopped hay, in particular, the difference in values between long hay and 8.0-cm cut hay was significant statistically (p < 0.01). The rumination index (time spent ruminating/100 g D.M, eaten) tended to be higher with long hay than with chopped hay, and the difference in values between long hay and 1.2-cm cut hay was significant statistically (p < 0.05). Bolus time was significantly longer with long hay (p < 0.01) than that with 8.0-cm cut hay. The circadian pattern of ruminating time was not changed by the changes in length of hay eaten.
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Fujihara, T.,Nakao, T.,Harumoto, T. Asian Australasian Association of Animal Productio 1990 Animal Bioscience Vol.3 No.3
In the present experiment, the relationship between rumination and the amount of roughage eaten by sheep was investigated in detail. Daily time spent eating was obviously changed along with an increase or decrease in daily hay intake. Daily time spent ruminating and daily number of boli regurgitated was also linearly increased or decreased with an increase or decrease of daily hay intake, and there were regression lines between daily amount of hay eaten and daily ruminating time or daily number of boli with statistical significant coefficients. Cyclic rate (total rumination time(s)/number of boli regurgitated) and daily number of rumination periods did not change in an outline along with the changes in daily hay intake. From these results, it can be suggested that daily dry matter intake by sheep could be presumed by measuring daily time spent ruminating when they were fed only roughage feed.
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MINERAL STATUS OF GRAZING SHEEP IN THE DRY AREA OF MIDLAND CHINA
Fujihara, T.,Hosoda, C.,Matsui, T. Asian Australasian Association of Animal Productio 1995 Animal Bioscience Vol.8 No.2
In the present study, nutritional status of some minerals in sheep grazed on native pasture was investigated in dry area, Ningxia district, of the People's Republic of China. Samples of some forages and blood of sheep were collected for two seasons, dry (March) and rainy (August) seasons. The Ca contents of forages (wheat straw, green-pea straw and some wild grasses) were relatively high as compared with that required ordinarily as standard, but on the contrary, the P content was much lower than that of standard. Consequently, Ca/P ratio was very high in cost of the roughages sampled in the region. Trace elements, Cu and Zn, content of forage samples were fairly low, and the contents of Mo and Fe were fairly high, particularly in some wild grasses, when the values were compared with that required normally. The Ca level in blood of sheep was in a range accepted as normal, and the other macro minerals(Mg and P) were contained at relatively high levels as compared with the values observed ordinarily, but not at a toxic level. With trace minerals, the plasma Fe level was extremely high as compared with the standard level, although there were no disorders due to toxicity, and Mo level in plasma was a little lower than the lower limit described as a normal. The plasma levels of other trace elements (Cu, Zn and Se) in all the animals were within the range accepted as normal. There would be no clear differences in mineral nutrition of sheep between dry and rainy seasons. These results could suggest that there is no severe unbalance and/or imbalance, and grazing sheep in the Ningxia area of midland China have no problems relating to the nutritional status of minerals.
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Fujihara, T.,Matsui, T.,Hayashi, S.,Robles, A.Y.,Serra, A.B.,Cruz, L.C.,Shimizu, H. Asian Australasian Association of Animal Productio 1992 Animal Bioscience Vol.5 No.2
Nutritional status of trace minerals (Se, Cu and Zn) in goats grazed on the native pasture was investigated during 2 years in Luzon Island, Republic of the Philippines. Three regions (South, Central and North) were objected to collect the samples of blood of goats and forages on the pasture. Se content of major species forages in the pasture was $24.7{\mu}g/kg$ DM, and was clearly lower than the value ($200{\mu}g/kg$ DM) required commonly for ruminant feed. The Cu and Zn contents of all forage samples ranged from 7.6 to 24.3 and 11.4 to 50.6 mg/kg DM, respectively, and these values almost exceeded the dietary level required for sheep. The blood Se levels in about 55% of goats grazed alone were under the normal range ($20{\mu}g/l$), but it in goats fed some concentrates as a supplement were almost within a normal ranges ($20-200{\mu}g/l$), though the Cu content of forages almost exceeded the dietary level required commonly. The 4-13% of plasma samples of goats without supplement showed the Zn level below the lower limit (0.6 mg/l) of normal range. The Zn deficiency was mostly improved by the addition of a small amount of concentrates. From these results, it will be necessary to study about unstable Cu status of grazed goats in Luzon Island regarding an interaction of Cu and other elements known to relate to the malabsorption of dietary Cu.
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