Influence of Nano Zinc Supplementation on the Haematological Properties, Serum Biochemical Constituents, Rumen Microbes and Minerals of West African Dwarf Sheep

Subject Areas :

A. Yusuf ^{1 *} , B. Akinyemi ² , M. Surajudeen ³ , O. Sowande ⁴

1 - Department of Animal Production and Health, Federal University of Agriculture, Abeokuta, Nigeria
2 - Department of Pasture and Range Management, Federal University of Agriculture, Abeokuta, Nigeria
3 - Department of Animal Production and Health, Federal University of Agriculture, Abeokuta, Nigeria
4 - Department of Animal Production and Health, Federal University of Agriculture, Abeokuta, Nigeria

Received: 2024-04-16 Accepted : 2025-02-09 Published : 2025-06-30

Keywords: health, nano-zinc, nutrition, rumen ecology, sheep,

Abstract :

This study is set to evaluate the influence of nano zinc oxide (nZnO) supplementation on the haematologi-cal properties, serum biochemical constituents, rumen microbial assay and minerals of eighteen (18) healthy West African Dwarf sheep with average weight of 13 ± 1.52 kg. The sheep were divided into three (3) treatment groups of six (6) animals per group and were randomly allotted to three (0 mg/kg, 300 mg/kg and 600 mg/kg nZnO) experimental diets. Data collected on collected on haematological properties, serum bio-chemical constituents, rumen microbial assay and minerals were subjected to one way analysis of variance in a completely randomized design (CRD) and significant means were separated using Tukey’s test. The results revealed that there were no significant (P<0.05) differences in the haematological parameters con-sidered. However, significant (P<0.05) differences were observed in the blood serum cholesterol and aspar-tate aminotransferase levels with the lowest values observed in the groups fed nZnO supplemented diet. Nano zinc oxide supplementation had significant effect (P<0.05) on rumen pH, temperature, total volatile fatty acids (VFA), acetic acid, butyric acid, and propionic acid. Sheep offered 600 mg/kg of nZnO had the highest values for pH (6.70), total VFA (5.45), acetic acid (3.63), butyric acid (2.36) and propionic acid (0.55). Meanwhile, those offered 300mg/kg had the highest rumen temperature (36.87) and control had the highest value for NH3-N (71.16). The dietary supplement had similar effect (P>0.05) on all minerals meas-ured except potassium. Nano zinc oxide supplementation, however, has no deleterious effect on the haema-tology, serum biochemical parameters with improved rumen environment of West African Dwarf sheep.

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