缓释氢氧化钙和缓释盐酸对家兔营养物质消化吸收的影响

本试验选用体重为(2.0±0.5)kg的家兔为试验动物,分别采用缓释氢氧化钙和缓释盐酸调节家兔的消化吸收,测定其对营养物质消化吸收的影响。结果表明:缓释氢氧化钙能促进营养物质特别是钙和粗蛋白质的消化吸收,其消化率分别从41.0%和65.2%增加到89.8%和93.8%;缓释盐酸对营养物质特别是钙和粗蛋白质的消化吸收不利,其消化率分别从55.5%和84.9%下降为28.4%和68.7%;此外,缓释氢氧化钙的促进消化吸收效果可维持3~4 d。由此可知,缓释氢氧化钙对钙以及蛋白质的消化吸收具有促进作用,而脂肪的消化吸收无论状态如何都具有良好的效果,因此增加脂肪的摄入容易产生营养过剩。然而,服用缓释盐酸会降低营养物质的消化吸收效果。

Influences of Sustained-Release Calcium Hydroxide and Sustained-Release Hydrochloric Acid on Nutrient Digestion and Absorption in Rabbits

To understand the influences of sustained-release calcium hydroxide and sustained-release hydrochlo-ric acid on nutrient digestion and absorption, this article choose rabbits with the body weight of (2.0±0.5) kg as the test subject, and used sustained-release calcium hydroxide and sustained-release hydrochloric acid to af-fect the digestion and absorption of rabbits, respectively. The results showed that sustained-release calcium hy-droxide can promote digestion and absorption of nutrients, especially calcium and protein. The digestibility of calcium and crude protein was increased from 89.8% and 93.8% to 41.0% and 65.2%, respectively. The sus-tained-release hydrochloric acid did not favor the digestion and absorption of nutrients, especially calcium and protein. The digestibility of calcium and crude protein was decreased from 55. 5% and 84. 9% to 28. 4% and 68.7%, respectively. The promoting effects of sustained-release hydrochloride on digestion could last for 3 to 4 days. Therefore, the sustained-release calcium hydroxide has a promotion effect on the rabbit’ s digestion and absorption for calcium and protein, while the digestion and absorption for fat remains at a high level no matter what the condition is. Consequently, increasing the intake of fat will cause over nutrition. However, taking sus-tained-release hydrochloric acid will reduce nutrient digestion and absorption.