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Asian-Australas J Anim Sci > Volume 20(11); 2007 > Article
Ruminant Nutrition and Forage Utilization
Asian-Australasian Journal of Animal Sciences 2007;20(11): 1713-1720.
DOI: https://doi.org/10.5713/ajas.2007.1713    Published online October 30, 2007.
Nutrient Intake, Acid Base Status and Growth Performance of Thalli Lambs Fed Varying Level of Dietary Cation-anion Difference
M. Sarwar*, M. Aasif Shahzad, Mahr-un- Nisa
Correspondence:  M. Sarwar,
Abstract
Influence of -110, +110, +220 and +330 mEq/kg of dry matter (DM) dietary cation-anion difference (DCAD) on growth performance of Thalli lambs were examined in a randomized complete block design. Four DCAD diets were randomly allotted to four groups, with ten lambs in each group. A linear increase in nutrient intake was recorded with increasing DCAD level. The digestibilities of nutrients were higher in lambs fed -110 DCAD diet than those fed +110, +220 and +330 DCAD diets. Lambs fed +330 DCAD diet had higher nitrogen balance than those fed -110 and +110 DCAD diets. Blood pH and serum HCO3 increased with increasing DCAD level. Serum chloride was higher in lambs fed -110 DCAD diet, while serum (Na+K)-(Cl+S) increased linearly with increasing DCAD level. Serum calcium increased with decreasing DCAD level while serum magnesium and phosphorus remained unaffected. Lambs fed -110 DCAD diet had higher Ca balance than those fed +110, +220 and +330 DCAD diets. Urine pH increased with increasing DCAD level. Lambs fed +220 and +330 DCAD diets gained more weight than those fed -110 and +110 DCAD diets. In conclusion, increased DCAD level not only increased the dry matter intake but also improved the weight gain of growing Thalli lambs.
Keywords: DCAD; Thalli Lambs; Nitrogen and Calcium Balance; Growth


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