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Togashi, K.,Hagiya, K.,Osawa, T.,Nakanishi, T.,Yamazaki, T.,Nagamine, Y.,Lin, C.Y.,Matsumoto, S.,Aihara, M.,Hayasaka, K. Asian Australasian Association of Animal Productio 2012 Animal Bioscience Vol.25 No.8
We first sought to clarify the effects of discounted rate, survival rate, and lactation persistency as a component trait of the selection index on net merit, defined as the first five lactation milks and herd life (HL) weighted by 1 and 0.389 (currently used in Japan), respectively, in units of genetic standard deviation. Survival rate increased the relative economic importance of later lactation traits and the first five lactation milk yields during the first 120 months from the start of the breeding scheme. In contrast, reliabilities of the estimated breeding value (EBV) in later lactation traits are lower than those of earlier lactation traits. We then sought to clarify the effects of applying single nucleotide polymorphism (SNP) on net merit to improve the reliability of EBV of later lactation traits to maximize their increased economic importance due to increase in survival rate. Net merit, selection accuracy, and HL increased by adding lactation persistency to the selection index whose component traits were only milk yields. Lactation persistency of the second and (especially) third parities contributed to increasing HL while maintaining the first five lactation milk yields compared with the selection index whose only component traits were milk yields. A selection index comprising the first three lactation milk yields and persistency accounted for 99.4% of net merit derived from a selection index whose components were identical to those for net merit. We consider that the selection index comprising the first three lactation milk yields and persistency is a practical method for increasing lifetime milk yield in the absence of data regarding HL. Applying SNP to the second- and third-lactation traits and HL increased net merit and HL by maximizing the increased economic importance of later lactation traits, reducing the effect of first-lactation milk yield on HL (genetic correlation ($r_G$) = -0.006), and by augmenting the effects of the second- and third-lactation milk yields on HL ($r_G$ = 0.118 and 0.257, respectively).
Effect of Fermented Soybean "Natto" Supplement on Egg Production and Qualities
Fujiwara, K.,Miyaguchi, Y.,Toyoda, A.,Nakamura, Y.,Yamazaki, M.,Nakashima, K.,Abe, H. Asian Australasian Association of Animal Productio 2008 Animal Bioscience Vol.21 No.11
Natto is a Japanese traditional soybean product fermented by Bacillus natto. The effects of dried fermented soybean (natto) supplement on egg production and egg qualities of layer chickens was studied with regard to the effective use of various waste foods in Japan. Dried natto, prepared by heating at $60^{\circ}C$, was added to a basic diet at a level of up to 3%. Forty 166-wk-old layer chickens (Rhode Island Red) were randomly divided into 4 groups and five layer chickens were used in each group with two replicates. Layer chickens in group 1 were fed a basic diet as the control. The remaining 3 groups were fed the basic diet supplemented with dried natto at levels of 1, 2, and 3% (w/w), respectively. The result did not show improvements in egg production or feed conversion ratio of layer chickens even when 3% dried natto was added to the control diet. The egg qualities including egg weight, eggshell strength and thickness, yolk color, yolk weight, albumen height, and Haugh unit were also not improved. However, the feeding of dried natto changed the cholesterol content in the egg yolk. The supplementation of dried natto showed the tendency to decrease the yolk cholesterol after 12-wk of feeding compared to the control diet though it did not change plasma cholesterol levels in the blood. On the other hand, yolk cholesterol decreased significantly after 12-wk of feeding 3% dried natto (p<0.05).
Effect of Fermented Soybean, "Natto" on the Production and Qualities of Chicken Meat
Fujiwara, K.,Miyaguchi, Y.,Feng, X.H.,Toyoda, A.,Nakamura, Y.,Yamazaki, M.,Nakashima, K.,Abe, H. Asian Australasian Association of Animal Productio 2008 Animal Bioscience Vol.21 No.12
Natto is a Japanese traditional soybean product fermented by Bacillus natto. The effect of natto supplement on the production and qualities of chicken meat was studied since the effective use of various waste foods is required in Japan. Dried natto prepared by heating at $60^{\circ}C$ was added to a basic diet at an amount of below 2%. The supplementation of dried natto did not influence the weights of the carcass, breast and thigh meat, fillet or abdominal fat. Growth of the thighbone such as the length, thickness of cortex bone, and Ca/P ratio in bone ash were not altered by the addition of natto. However, the pH of male meat decreased following the supplementation of dried natto from days 28 to 80. The water-soluble protein content in male thigh meat increased in the group fed 2% natto from days 28 to 80. Free peptides increased in male thigh meat by feeding 2% natto from days 0 to 80. The supplementation of natto increased free glutamic acid in thigh meat regardless of sex. Moreover, the supplementation of natto specifically decreased meat cholesterol in female chickens though the effect was not shown in male chickens.
hajime Arimoto,F. Sano,G. Motojima,H. Yamazaki,H. Nakamura,H. Yabutani,H. Kitagawa,H. Okada,J. Arakawa,K. Kondo,K. Ohashi,K. Nagasaki,M. Yamada,M. Uno,M. Kikutake,M. Kaneko,N. Watanabe,N. Nishino,N. S 한국물리학회 2006 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.49 No.III
The measurement of D, CII and CIII line spectral profiles and the CD band spectrum from the vicinity of a test limiter surface is performed in Heliotron J test limiter experiments. With deep insertion of the limiter, there is a localized intense region of the D, CII and CIII line intensity in the limiter surface, and the CD band spectrum is observed at this region. It is considered that the deuterium ion flux and heat load concentrate at this region and enhance carbon impurity generation.r_che
Configuration Dependence of Toroidal Current in Heliotron J
gen Motojima,F. Sano,H. Yabutani,H. Okada,H. Nakamura,H. Arimoto,H. Kitagawa,H. Yamazaki,K. Kondo,K. Nagasaki,K. Hanatani,K.Y. Watanabe,M. Kaneko,M. Uno,S. Fujikawa,S. Watanabe,S. Yamamoto,S. Kobayash 한국물리학회 2006 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.49 No.III
A change of toroidal current by controlling the magnetic configuration has been observed in Heliotron J. The effect of the magnetic configuration on the neoclassical bootstrap current has been theoretically investigated for Heliotron J. It is found that the bumpy field component (B04) plays an important role in changing both the value and the direction of the bootstrap current in Heliotron J. The bootstrap current density is reversed at the small minor radius first, and then the net bootstrap current changes its direction from a positive value to a negative value as B04 decreases.
Tribological Properties of Co-Sputtered MOS₂ Films
K. SAGARA,T. YAMAZAKI,M. NISHIMURA 한국트라이볼로지학회 2002 한국트라이볼로지학회 학술대회 Vol.2002 No.10
Tribological properties of co-sputtered Molybdenum disulfide (MoS₂)/Carbon (C) films were studied and compared with those of sputtered MoS₂ films. Friction tests were carried out using pin-on-disk friction testers to evaluate their friction and wear behaviors in a vacuum (10?? ㎩), air and humid air of 30, 50, 80% RH. MoS₂/C (14%) composite films exhibited about 9 times longer wear life in a vacuum and about 6 times longer wear life in dry air than MoS₂ films did. They also showed stable low friction coefficient of about 0.02 in a vacuum. In humid air, however, MoS₂/C composite films hardly showed good tribological properties.