›› 2019, Vol. 46 ›› Issue (1): 101-111.doi: 10.16431/j.cnki.1671-7236.2019.01.012

• Animal Nutrition and Feed Science • Previous Articles     Next Articles

Effects of Drinking Magnetized Water on the Digestion and Metabolism of Sheep Fed with Pellet Diet

ZHANG Liping, LUO Qiujiang, ZANG Changjiang, XIE Jiaxun, PAN Rong   

  1. Laboratory of Animal Nutrition, College of Animal Science, Xinjiang Agricultural University, Urumqi 830052, China
  • Received:2018-07-20 Online:2019-01-20 Published:2019-01-19

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Abstract:

In order to explore the effects of drinking magnetized water (DMW) on the digestion and metabolism of sheep fed with pellet diet,two experiments were designed in this study.In experiment 1:Four 1.5-year-old Small-tail Han ram with (44.7±1.8) kg body weight were selected and assigned to 4 groups by 4×4 Latin square design,in which they were fed with ground diet (treatment 1),ground diet+DWM (treatment 2),pellet diet (treatment 3) and pellet diet+DMW(treatment 4),respectively,to study the effect of DMW on the voluntary intake,digestion and metabolism of sheep fed with the ground and pellet diets.In experiment 2:Six 1.5-year-old non-pregnant Small-tail Han ewe with (46.3±2.1) kg body weight were selected and divided into 3 groups by 3×3 Latin square design,in which all of sheep were fed with pellet diet with voluntary intake (treatment 1),voluntary intake+DMW(treatment 2) and restricted feeding+DMW (treatment 3),respectively,to study on the effects of DMW on the digestion and metabolism of sheep with restricted feeding.The results showed that:①In experiment 1,the dry matter voluntary intake,apparent digestibility of the dry matter,crude protein and energy,and nitrogen retention of ram with DMW were increased by 14.7%(P < 0.05),2.6%(P > 0.05),2.2%(P > 0.05),2.2%(P > 0.05) and 22.7%(P < 0.01),respectively,when fed with ground diet;And that were increased by 14.3%(P < 0.05),4.2%(P < 0.05),4.8%(P < 0.05),6.0%(P < 0.01) and 14.2%(P < 0.05),respectively,when fed with pellet diet.② In experiment 2,the apparent digestibility of the dry matter,organic matter,crude protein,cellulose,hemicellulose,non-enzyme-hydrolyzable cellulose and hemicellulose,energy and nitrogen retention of feeding-restricted ewe with DMW were increased by 19.1%,19.0%,9.7%,18.4%,16.2%,341.5%,226.7%,17.4% and 14.8%(P < 0.01),respectively,compared with the ewe that had voluntary intake.It was concluded that under the circumstance of voluntary intake of sheep increased by feeding pellet diet,it would be increased further by DMW;Under the circumstance of voluntary intake,DMW did not affect the digestibility of sheep fed with ground diet but increased the digestibility of dry matter,crude protein and energy and nitrogen retention of sheep fed with pellet diet;In restricted feeding,the nutrients digestibility of sheep was significantly increased by DMW.

Key words: magnetized water; sheep; pellet diet; digestion and metabolism

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