Research on processing of passion fruit peel as feed for dairy cattle in Moc Chau – Son La
This research aimed to evaluate the possibility to process passion fruit peel as feed for dairy cattle in Moc Chau district from January to October, 2019. Three silage formulae were tested in the field, including: CT1: 75% passion fruit peel + 20% dry corn cob + 5% molasses, CT2: 75% passion fruit peel + 20% bagasse + 5% molasses, CT3: 75% passion fruit peel + 10% dry corn cob + 10% bagasse + 5% molasses; and 02 fermented total mixed rations (FTMR1 and FTMR2) were also tested. The mixed materials in each formular were compacted layer by layer in plastic bags on the dairy farm. The silages were evaluated after 0, 30, 60 and 90 days, and the FTMRs after 21 days of ensilage based on sensory criteria, pH, chemical composition as well as the feed intake by the dairy cow. Two silage formulae, viz, CT1 and CT3, showed good results according to sensory evaluation, pH, chemical composition as well as feed intake. Both of these formulae were used for further studies on lactating cows. Formula FTMR2 gave good results according to sensory evaluation, pH, chemical parameters as well as feed intake. Formula FTMR2 was then used for further studies on lactating cows, while FTMR1 for heifers.
