EFFECT OF FEEDING NATURAL ANDIOR COMMERCIAL BIO-ADDITIVES ON THE PRODUCTIVE PERFORMANCE OF LACTATING EWES | ||
| Journal of Animal and Poultry Production | ||
| Article 3, Volume 29, Issue 10, October 2004, Pages 5567-5583 PDF (4.98 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jappmu.2004.239420 | ||
| Authors | ||
| R. l. EI- Kady,1; A. M. Kandil2; M. A. Boraie2 | ||
| 1Department of Animal production, National Research Center, Dokki, Giza, Egypt. | ||
| 2Department of Animal production, Faculty of Agriculture, EI-Azhar, University, Cairo, Egypt. | ||
| Abstract | ||
| The aim of this study was to compare the effect of using Bospro milled fenugreek seeds and active dried yeast on milk yield and composition of lactating ewes. Sixteen multiparous Barki ewes (weighing in average 44.S:!: 0.49 kg were divided randomly into four equal groups (4 ewes each), belonging to the Agriculture Experimental and Research Station, Faculty of Agriculture, EI-Azhar University, Cairo. Animals were group fed according to (NRC, 1985). The control diet consisted of concentrate feed mixture and ad-lib bean straw with no feed additives (R1). The second group received the control diet plus 15gm/ewe/day, Bospro (R2). The third group received the control diet plus 15gm/ewe/day, milled fenugreek seeds (R3) and the fourth one received the control diet plus 10gm/ewe/day live dried baker's yeast(R4). The experiment started 4 weeks before expected lambing date and continued till the end of the lactation period. The results showed that: Ewes fed on different feed additives increased their roughage OMI by about 25, 41 and 46 % for Bospro (R2) Fenugreek (R3) and yeast (R4) rations, respectively, compared with the control (R1) ration. Daily milk yield by ewes fed on different feed additives increased by about 10.5, 16.3 and 12.7% for R2, R3 and R4 respectively, compared with those fed on control ration. Total solids %, milk fat% , protein% and lactose % and gross energy per kg milk tended to increase with feeding different feed additives compared with the control ration. Feeding different feed additives significantly (PS 0.05) improved almost all values of nutrients digestibility compared with the control ration. Higher feeding values of different feed additives compared with control ration were obvious. The results of rumen parameters showed reduction in ruminal PH for different feeding treatments after 4 hrs of feeding. However, total volatile fatty acids concentrations were noticeably increased after 4 hrs of feeding with different feed additives compared to the control ration. Ruminal ammonia - N concentrations was noticeably increased with feeding different feed additives compared with the control ration. It could be concluded that Bospro, Fenugreek seeds and active dried yeast could be used in lactation ewes rations to improve their milk yield and milk composition with decreasing feed cost. The best economical return was achieved with the groups fed rations contained fenugreek, active dried yeast followed by the group fed ration contained Bospro and the lowest was the control. | ||
| Keywords | ||
| Bospro; fenugreek seeds; active dried yeast; lactation; nutrients digestibility and rumen parameters | ||
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