EFFECT OF REPLACING BERSEEM HAY BY VEGETABLE MARKETING WASTE SILAGE IN THE RATIONS ON SOME PRODUCTIVE AND PHYSIOLOGICAL TRAITS OF LACTATING COWS | ||
| Journal of Animal and Poultry Production | ||
| Article 1, Volume 28, Issue 8, August 2003, Pages 5957-5967 PDF (7.8 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jappmu.2003.244806 | ||
| Authors | ||
| A. A. Shitta,; H. M. A. Gaafar | ||
| Animal Production Research Institute, Agricultural Research Center, Ministry of Agriculture. | ||
| Abstract | ||
| Twenty four lactating Friesian cows were divided randor"ly into four similar groups. Cows 01 the first group were fed on a control ration (R1) consisted of 50% concentrate mixture (CM). 30% berseem hay (BH) and 20% rice straw (RS). tor the other three groups (R2. R3 and R4) 33. 66 ane 100% of the berseem hay (BH) were recteced by vegetable mar~p.t ng waste silagE ·:'vI.1WS). respectively. Resulls indicated that the contents of OM. CPo CF and ash decreased. while OM, EE and NFE contents increased with increasing the level of VMWS in ranons. The dige~:ion coefficients of OM, OM. EE and NFE (and consequently the TON value) increased. while the digestion coefficients of CPo CF (and subsequenUy the DCP value) decreased significantly (P<O.OS) wilh increasing the level of VMWS in the rations. Average daily intakes ot OM, TON. CP and DCP decreased significantly as the level of VMWS in the rations increased. Ruminal TVFA's, blood TJ and cortisol concentrations and atkaline phosphatase activity increased, white rumina! pH value and NH3·N, and blood total protein. albumin. globulin. urea and creatlnine concentrations and activity of GOT and GPT decreased significantly (P<O.05) with Increasing the level of VMWS in the rations. The yield of aciuat milk, 4% tat corrected milk (FCM), tat. lactose and total solids increased significantly (P<O.05) with increasing the level of VWNVS up 1066% and decreased afterwards. Fat and lactose contents increased, while protein. totaf solids, solid not fat and ash contents of milk and the yield ot milk protein decreased significanUy (P<O.05) with increasing the level o(VMWS in the rations. Yield of solid not fat in milk of cows fed 100% VMWS (R4) was significantly lower (P<0.05) compared (0 those fed R 1, R2 and R3 rations .. Daily teed cost decreased. and efficiency of energy and protein ulilization as well as feed and economic eff)ciency increased significantly (P<O.OS) with increasing the level of Vr-mvS in the ralions. The Income of 4% FCM yield increased significantly (P<O.05) with increasing the level of VMWS up to 66% and decreased anerwards. Blood analysis revealed normal hepatic function and level of hormone associated with energy metabolism. | ||
| Keywords | ||
| Lactating Friesian cows. vegetable marketing waste silage. digestibility; nutritive values; milk production and composition. blood constituents. rumen liquor parameters | ||
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