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| 1 | Response of primiparous and multiparous buffaloes to yeast culture supplementation during early and mid-lactation显示文摘Strains of live Saccharomyces cerevisiae yeast have exhibited probiotic effects in ruminants. This study investigated the effects of the dietary yeast supplement, S. cerevisiae(Yea-Sacc^(1026)), on primiparous(PP)and multiparous(MP) Egyptian buffaloes in early to mid-lactation. Lactating buffaloes were fed either a basal total mixed ration(TMR, control; 4 PP and 8 MP) or the basal TMR plus 10 g Yea-Sacc^(1026) per buffalo cow per day(yeast; 4 PP and 8 MP). The feeds were given from 15 days prepartum to 180 days postpartum. Feed intake, body weight, and milk yields(MY) were recorded, and milk and blood samples were collected for analyses. Feces were collected from days 45 to 47 during early lactation and from days 90 to92 during mid-lactation to determine apparent digestibility of dry matter(DM), organic matter(OM),crude protein(CP) and crude fiber(CF). Energy corrected milk yield(ECM), feed conversion, and energy and nitrogen conversion efficiency were calculated. Yeast treated MP buffaloes consumed more DM(P < 0.041) and CP than the untreated control group. Apparent digestibility of DM and OM were significantly greater at mid-lactation for treated versus control group(P = 0.001). Crude fiber digestibility was greater in MP than in PP buffaloes(P = 0.049), and yeast supplemented MP cows had a greater CF digestibility than control MP buffaloes at mid-lactation(P = 0.010). Total blood lipids decreased after yeast supplementation(P= 0.029). Milk yields, ECM, fat and protein yields increased for yeast treated MP buffaloes(P < 0.039). The study concluded that the response to yeast supplementation in buffalo cows is parity dependent. Multiparous buffaloes respond to yeast supplementation with an increased DM intake and CF digestibility without significant weight gains, allowing a greater ECM yield with less fat mobilization. Supplementing buffaloes with yeast culture may increase milk production in early lactation and results in a more persistent milk production during mid-lactation. Feed conversion and energy and nitrogen conversion efficiency may be increased with the use of yeast supplementation in Egyptian buffaloes. | Hanne H.Hansen Nasr E.El-Bordeny Hossam M.Ebeid | 2017 | Animal Nutrition2017，，4： | 4 |
| 2 | Cotrimoxazole prescribing by dispensing and non‐dispensing doctors: do they differ in rationality?显示文摘 | BirnaTrap Ebba H.Hansen | 2002 | Tropical Medicine & International Health2002，，10： | 1 |
| 3 | Comparative methane estimation from cattle based on total CO_2 production using different techniques显示文摘The objective of this study was to compare the precision of CH4 estimates using calculated CO_2(HP) by the CO_2 method(CO_2 T) and measured CO_2 in the respiration chamber(CO_2 R). The CO_2 R and CO_2 T study was conducted as a 3 × 3 Latin square design where 3 Dexter heifers were allocated to metabolic cages for 3 periods. Each period consisted of 2 weeks of adaptation followed by 1 week of measurement with the CO_2 R and CO_2 T. The average body weight of the heifer was 226 ± 11 kg(means±SD). They were fed a total mixed ration, twice daily, with 1 of 3 supplements: wheat(W), molasses(M), or molasses mixed with sodium bicarbonate(Mbic). The dry mater intake(DMI: kg/day) was significantly greater(P < 0.001)in the metabolic cage compared with that in the respiration chamber. The daily CH4(L/day) emission was strongly correlated(r=0.78) between CO_2 T and CO_2 R. The daily CH4(L/kg DMI) emission by the CO_2 T was in the same magnitude as by the CO_2 R. The measured CO_2(L/day) production in the respiration chamber was not different(P = 0.39) from the calculated CO_2 production using the CO_2 T. This result concludes a reasonable accuracy and precision of CH4 estimation by the CO_2 T compared with the CO_2 R. | Md N.Haque Hanne H.Hansen Ida M.L.D.Storm Jφrgen Madsen | 2017 | Animal Nutrition2017，，2： | 1 |
| 4 | A new mechanism for chloramphenicol, florfenicol and clindamycin resistance: methylation of 23S ribosomal RNA at A2503显示文摘 | CorinnaKehrenberg StefanSchwarz LeneJacobsen Lykke H.Hansen BirteVester | 2005 | Molecular Microbiology2005，，4： | 1 |
| 5 | A new mechanism for chloramphenicol, florfenicol and clindamycin resistance: methylation of 23S ribosomal RNA at A2503显示文摘 | CorinnaKehrenberg StefanSchwarz LeneJacobsen Lykke H.Hansen BirteVester | 2005 | Molecular Microbiology2005，，4： | 1 |
| 6 | Waist circumference thresholds and cardiorespiratory fitness显示文摘Purpose: This study's purpose was to examine whether established risk categories of waist circumference(WC)—normal, high risk, and very high health risk—reflected significant differences in cardiorespiratory fitness(CRF) and physical activity(PA) level.Methods: CRF was directly measured as maximal oxygen uptake during a progressive graded treadmill test to exhaustion in 722 individuals(349 women) aged 20à85 years. WC was measured between the lower rib and the iliac crest. Objectively measured PA was assessed using an accelerometer.Results: Men in the normal risk group(WC < 94 cm) had a 31% higher CRF and 43% higher level of moderate-to-vigorous PA than men in the very high risk group(with a WC > 102 cm). Corresponding numbers for women within normal(WC < 80 cm) and very high risk group(WC > 88 cm) were 25% and 18%(p < 0.05). There was a high negative correlation between CRF and WC in men(r = ?0.68), and a moderate correlation for women(r = ?0.49; p < 0.001). For each cm increase in WC, CRF was reduced by 0.48 and 0.27 mL/kg/min in men and women,respectively(p < 0.001).Conclusion: The recommended WC thresholds for abdominal obesity reflected significant differences in CRF for both men and women, and could serve as a useful instrument for estimating health-related differences in CRF. | Sindre M.Dyrstad Elisabeth Edvardsen Bj?rge H.Hansen Sigmund A.Anderssen | 2019 | Journal of Sport and Health Science2019，8，1： | 0 |
| 7 | Label-free superior contrast with c-band ultra-violet extinction microscopy显示文摘In 1934,Frits Zernike demonstrated that it is possible to exploit the sample’s refractive index to obtain superior contrast images of biological cells.The refractive index contrast of a cell surrounded by media yields a change in the phase and intensity of the transmitted light wave.This change can be due to either scattering or absorption caused by the sample.Most cells are transparent at visible wavelengths,which means the imaginary component of their complex refractive index,also known as extinction coefficient k,is close to zero.Here,we explore the use of c-band ultra-violet(UVC)light for high-contrast high-resolution label-free microscopy,as k is naturally substantially higher in the UVC than at visible wavelengths.Using differential phase contrast illumination and associated processing,we achieve a 7-to 300-fold improvement in contrast compared to visible-wavelength and UVA differential interference contrast microscopy or holotomography,and quantify the extinction coefficient distribution within liver sinusoidal endothelial cells.With a resolution down to 215 nm,we are,for the first time in a far-field label-free method,able to image individual fenestrations within their sieve plates which normally requires electron or fluorescence superresolution microscopy.UVC illumination also matches the excitation peak of intrinsically fluorescent proteins and amino acids and thus allows us to utilize autofluorescence as an independent imaging modality on the same setup. | Florian Ströhl Deanna L.Wolfson Ida S.Opstad Daniel H.Hansen Hong Mao Balpreet S.Ahluwalia | 2023 | Light(Science & Applications)2023，12，3： | 0 |
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