EFFECT OF DIFFERENT LEVELS OF ZINC SUPPLEMENTATION ON UTILIZATION OF NONPROTEINOUS NITROGEN FOR LACTATING BUFFALOES | ||||
| Journal of Animal and Poultry Production | ||||
| Article 5, Volume 29, Issue 6, June 2004, Page 3063-3074 PDF (1.07 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jappmu.2004.239172 | ||||
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| Authors | ||||
| Kh. M. M. Mousa,; S. M. El-Sheikh | ||||
| Animal Production Research Institute Dokki, E9.YPt | ||||
| Abstract | ||||
| Sixteen lactating buffaloes in four groups were fed on rations, consisted of concentrate feed mixture and rice straw, provided with 1% urea and zinc sulfate with different levels: 0, 40, 80 and 120 mglkg DM intake, respectively. Results showed that the addition of zinc improved the digestiblities of DM, OM, CP, CF. EE and NFE. Feeding values as TDN and DCP appeared the same previous trend. In addition, 80 and 120 mg zinclkg DM intake improved the serum total protein and globulin but only 120 mg Zn/kg DM intake improved the serum zinc concentration, while it reduced the concentration of both albumin and urea in blood serum of buffaloes. The data revealed that zinc addition with the two concentrations (80 and 120 mg Znlkg OM intake) did not affect the milk yield, fat correct milk 7% and milk compositions, but the addition of 40 mg zinc improved the fat correct milk, fat and total solids of milk and milk energy, Generally, the addition of zinc with different concentrations did not affect feed intake as DM, TDN or DCP intake and feed efficiency as kg 7% fat correct milk/OM or TDN or DCP. Ad<Ution..of 40 mg zinc significantly increased either of birth and weaning weights and daily gain of calves. | ||||
| Keywords | ||||
| Lactating buffaloes; Zinc . Feed intake; Digestibility; Blood parameters; Milk composition; Calves | ||||
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