The experiment was conducted to evaluate the low phosphorus diets supplemented with different sources of phytase in low metabolizable energy （ME） and crude protein （CP） diets in broilers. Four levels of non-phytat...The experiment was conducted to evaluate the low phosphorus diets supplemented with different sources of phytase in low metabolizable energy （ME） and crude protein （CP） diets in broilers. Four levels of non-phytate phosphorus （NPP） （0.33%, 0.36%, 0.39% and 0.42% of the diet） were employed in six dietary treatments in such a way that the least level of NPP （0.33%） was supplemented with two phytase enzymes namely 6-phytase （Natuphos-5,000） and 3-phytase （Sunphase） along with low nutrient composition viz. 2750 kcal ME/kg and CP 18% in growing phase （21 d-42 d）. A total of 1,400 birds were exposed to six treatments in three replicates except for the phytase supplemented diets which were replicated four times each. Non-significant results are obtained from all performance parameters （body weight gain, feed intake and feed gain） and serum minerals （calcium and phosphorus） between 21 days to 42 days. Non-significant results are seen among all treatments; even supplementation of both types of enzymes did not affect the overall results. The results of the present study demonstrate 0.33% P level without phytase are sufficient in low ME and CP diets.展开更多
Objectives: During visual stimulation, the elevated metabolism rate will coupl e with increase of blood flow velocity(BFV) in posterior cerebral artery(PCA). T his study with TCD was aimed to investigate whether the c...Objectives: During visual stimulation, the elevated metabolism rate will coupl e with increase of blood flow velocity(BFV) in posterior cerebral artery(PCA). T his study with TCD was aimed to investigate whether the coupling might change ac cording to the different vasoneuronal conditions. Methods: Ninety-nine voluntee r s including 24 hypertension(HT) patients and 2 patients suffering from both HT a nd diabetes mellitus(DM) were enrolled in this trial. BFV and pulse indexes(PI) in P2 segments of PCA on both sides were monitored during visual stimulation. Re sults: In all subjects, Mean BFV increased and PI went down in response to visua l stimulation. The percentages of changes (ΔV and ΔP) of both mean BFV and PI we re larger in young group(<55 years old) than in old one(≥55 years old). There w a s significant positive correlation between ΔV and ΔP. Multivariated re gression a nalysis did not show HT and DM, but age related to ΔV(ΔP). We did not find signi ficant difference of ΔV(ΔP) between left and right sides. Conclusions: Blood flo w velocity in PCA P2 segment increased due to decreased cerebrovascular resistan ce during visual stimulation and the response weakened with aging of the patient .展开更多
文摘The experiment was conducted to evaluate the low phosphorus diets supplemented with different sources of phytase in low metabolizable energy （ME） and crude protein （CP） diets in broilers. Four levels of non-phytate phosphorus （NPP） （0.33%, 0.36%, 0.39% and 0.42% of the diet） were employed in six dietary treatments in such a way that the least level of NPP （0.33%） was supplemented with two phytase enzymes namely 6-phytase （Natuphos-5,000） and 3-phytase （Sunphase） along with low nutrient composition viz. 2750 kcal ME/kg and CP 18% in growing phase （21 d-42 d）. A total of 1,400 birds were exposed to six treatments in three replicates except for the phytase supplemented diets which were replicated four times each. Non-significant results are obtained from all performance parameters （body weight gain, feed intake and feed gain） and serum minerals （calcium and phosphorus） between 21 days to 42 days. Non-significant results are seen among all treatments; even supplementation of both types of enzymes did not affect the overall results. The results of the present study demonstrate 0.33% P level without phytase are sufficient in low ME and CP diets.
文摘Objectives: During visual stimulation, the elevated metabolism rate will coupl e with increase of blood flow velocity(BFV) in posterior cerebral artery(PCA). T his study with TCD was aimed to investigate whether the coupling might change ac cording to the different vasoneuronal conditions. Methods: Ninety-nine voluntee r s including 24 hypertension(HT) patients and 2 patients suffering from both HT a nd diabetes mellitus(DM) were enrolled in this trial. BFV and pulse indexes(PI) in P2 segments of PCA on both sides were monitored during visual stimulation. Re sults: In all subjects, Mean BFV increased and PI went down in response to visua l stimulation. The percentages of changes (ΔV and ΔP) of both mean BFV and PI we re larger in young group(<55 years old) than in old one(≥55 years old). There w a s significant positive correlation between ΔV and ΔP. Multivariated re gression a nalysis did not show HT and DM, but age related to ΔV(ΔP). We did not find signi ficant difference of ΔV(ΔP) between left and right sides. Conclusions: Blood flo w velocity in PCA P2 segment increased due to decreased cerebrovascular resistan ce during visual stimulation and the response weakened with aging of the patient .
