收费全文 | 79篇 |
免费 | 16篇 |
林业 | 1篇 |
基础科学 | 1篇 |
6篇 | |
综合类 | 12篇 |
农作物 | 2篇 |
畜牧兽医 | 68篇 |
植物保护 | 5篇 |
2023年 | 3篇 |
2020年 | 6篇 |
2019年 | 1篇 |
2018年 | 5篇 |
2017年 | 2篇 |
2016年 | 3篇 |
2015年 | 9篇 |
2014年 | 4篇 |
2013年 | 7篇 |
2011年 | 5篇 |
2010年 | 6篇 |
2009年 | 3篇 |
2007年 | 2篇 |
2006年 | 2篇 |
2005年 | 3篇 |
2004年 | 2篇 |
2002年 | 1篇 |
2001年 | 3篇 |
1999年 | 1篇 |
1998年 | 3篇 |
1997年 | 3篇 |
1996年 | 4篇 |
1995年 | 2篇 |
1993年 | 5篇 |
1991年 | 2篇 |
1990年 | 1篇 |
1989年 | 1篇 |
1986年 | 1篇 |
1979年 | 1篇 |
1972年 | 2篇 |
1966年 | 1篇 |
1963年 | 1篇 |
2. One hundred and forty four chicks were divided into 6 groups: one control group was fed a basal diet of 30 mg α‐tocopheryl acetate/kg food for the duration of the trial. A supplemental diet of 200 mg α‐tocopheryl acetate was fed to each of the odier 5 groups for 1,2,3,4 or 5 weeks prior to slaughter.
3. Supplementation resulted in an increase in α‐tocopherol in plasma and all tissues examined. Saturation levels of α‐tocopherol were observed in plasma after 1 week of feeding and in tissues within 3 to 4 weeks of feeding.
4. Supplementation with α‐tocopheryl acetate for up to 4 weeks pre‐slaughter resulted in significant reductions in susceptibility to induced lipid peroxidation.
5. Overall, the results show that feeding 200 mg α‐tocopheryl acetate/kg food to chicks for at least 4 weeks prior to slaughter is necessary to optimise muscle content and stability against lipid peroxidation. 相似文献
2. Plasma α‐tocopherol was significantly correlated with α‐tocopherol concentrations in thigh and breast muscle.
3. The fatty acid profiles of muscle lipids reflected dietary fatty acid composition.
4. The consumption of heated sunflower and linseed oils reduced α‐tocopherol status, altered fatty acid composition of muscle lipids and increased susceptibility of muscle to lipid oxidation.
5. Supplementation of diets containing heated oils with α‐tocopheryl acetate resulted in some alleviation of these effects.
6. The results indicate that caution should be exercised in the use of thermally oxidised oils in poultry diets if undesirable changes in composition and oxidative stability of carcase lipids are to be avoided. 相似文献