Dried poultry manure and Leucaena in rice straw-based blended diets for dairy heifers; 3: lactation phase 1
1986
Trung, L.T. | Palo, L.P. | Matias, J.M. | Lapinid, R.R. | Atega, T.A.
No significant differences were found in Neutral Detergent Fiber (NDF) and organic matter digestibility among the treatment means. Nevertheless, Diet 4 was relatively more digestible than those containing ILM and/or DPM [dried poultry manure]. Intakes of DM [dry matter], CP [crude protein] and energy were highest with Diet 2 and lowest with Diet 4 (P.05). Only the differences in liveweight changes between Diets 1 and 4 was significant (P.05). No significant differences were observed on the weight by calves born to the experimental cows among the treatment means. No significant differences in milk production, length of lactation, Fat Corrected Milk (FCM) and persistency were observed. Diet 2 was found less efficient (P.05) compared to the 3 other diets in terms of feed and energy conversion efficiencies. Differences in butterfat, protein and solids-non-fat contents were not significant. Total solids content was higher in Diet 3 compared to Diet 4 (P.05). Furthermore, no significant differences were found in flavor, off-flavor and overall acceptance of milk produced from the 4 treatment groups. Best reproductive performance was obtained from Diet 3. Economic evaluation revealed no significant differences for total feed cost and income over feed cost for both commercial and backyard scales of production. However, Diet 3 showed highest net income records.
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