Rats Allowed to Self-Select Zinc-Deficient Lard and Fish-Oil Diets Did Not Develop a Preference for Fish-Oil Diet
スポンサーリンク
概要
- 論文の詳細を見る
Zinc (Zn)-deficiency causes a reduction in food intake and alters adipose metabolism. The effect of zinc restriction in rats on the selection of fish-oil and lard was studied during a period of reduced appetite. The reduction of appetite was caused by an experimentally induced Zn-deficiency. Four-week-old male rats were divided into three dietary treatment groups: Zn-adequate (ZnA, 30.9 mg Zn/kg), marginal Zn-deficient (ZnM, 5.9 mg Zn/kg) or Zn-deficient (ZnD, 0.9 mg Zn/kg). The three groups were placed on a self-selection regimen of the ZnA-fish-oil diet (ZnA-FD) and the ZnA-lard diet (ZnA-LD), the ZnM-FD and the ZnM-LD or the ZnD-FD and the ZnD-LD, respectively for 24 d. The amount of the FD intake in the ZnD group decreased to 0.5 g/d after day 4-6 of self-selecting on the LD and the FD and no significant increase in the FD intake in the group was observed during the self-selection period. However, after day 7-9 and 13-15, the FD intake of the ZnA and the ZnM groups increased, respectively, and at the end of the self-selection period the ZnM and the ZnA rats consumed about 2.0 g FD/d and 4.5 g FD/d, respectively. The FD intake ratio [FD intake (g)/total intake (g)] in the ZnD rats during the self-selection period was the lowest and that in the ZnA rats was the highest of three groups. In conclusion, we showed that zinc status alters fish-oil and lard selection patterns and ZnD rats did not show a preference for fish-oil.
- 日本ビタミン学会、日本栄養・食糧学会の論文
- 2011-04-01
著者
-
Nakashima Yoko
Department Of Human Life And Culture Seitoku University
-
Nakashima Yoko
Department Of Human Nutrition Seitoku University
-
SATO Akie
Department of Human Nutrition, Seitoku University
-
Sato Akie
Department Of Human Nutrition Seitoku University
関連論文
- Exposure to Dams' Low-Fat High-Carbohydrate Diet during Pregnancy and Lactation Establishes a Preference for Fat by Their Offspring
- Effect of Plant- and Fish-Oil Derived u-3 Polyunsaturated Fatty Acids on Counteraction of n-3 Fatty Acid Shortage in Adult Rats Fed a Lard Diet
- Preferential Fat Intake of Pups Nursed by Dams Fed Low Fat Diet during Pregnancy and Lactation Is Higher than That of Pups Nursed by Dams Fed Control Diet and High Fat Diet
- Possible Adverse Effects of Soy Isoflavone Mixture on Pregnant and Lactating Rats and their Suckling Pups
- Effects of Genistein, an Isoflavone, on Pregnancy Outcome and Organ Weights of Pregnant and Lactating Rats and Development of Their Suckling Pups
- Hexachlorobenzene and Pentachlorobenzene Accumulated during Pregnancy is Transferred to Pups at the Accumulation Ratio in Dams
- Ratio of High-Fat Diet Intake of Pups Nursed by Dams Fed Combination Diet Was Lower Than That of Pups Nursed by Dams Fed High-Fat or Low-Fat Diet
- Consumption of a High-Fat Diet Containing Lard during the Growth Period in Rats Predisposes Them to Favorably Respond to the Diet in Later Life
- Rats Allowed to Self-Select Zinc-Deficient Lard and Fish-Oil Diets Did Not Develop a Preference for Fish-Oil Diet
- Fish-Oil High-Fat Diet Intake of Dams after Day 5 of Pregnancy and during Lactation Guards against Excessive Fat Consumption of Their Weaning Pups
- Rats Allowed to Self-Select Zinc-Deficient Lard and Fish-Oil Diets Did Not Develop a Preference for Fish-Oil Diet