ABSTRACT
Objective
The aim of this study was to determine the influences of feeding high-quality oil
palm frond pellets (HOPFP) as a replacement for concentrate on the DMI, nutrient digestion,
rumen fermentation, milk production, and milk composition in lactating dairy cows.
Material and Methods
Four, multiparous 75% Holstein Friesian cows were assigned in a 4 × 4 Latin square
design to receive HOPFP as a dietary replacement for concentrate at 0, 25, 50, and
75% (DM basis). Cows were fed concentrate + HOPFP at a 2:1 ratio of daily milk production
to diet, and urea-treated rice straw (5% urea) was fed ad libitum as roughage.
Results and Discussion
Concentrate + HOPFP feed intake, total DMI (kg/d and %BW), nutrient digestibility,
and nutrient intake of DM and OM were significantly greater in cows that received
25% HOPFP than those in those in other groups (P < 0.05). There was a quadratic (P < 0.05) effect of HOPFP level on total VFA (4 h after feeding) and milk yield, with
greater values in cows fed 25% HOPFP due to the greater feed intake and digestibility
of DM and OM. Cows fed with 0, 25, and 50% HOPFP had greater milk fatty acids in terms
of C14:0, C16:0, and C18:2n-6, whereas milk composition and the other fatty acids
in milk were not altered among the groups (P > 0.05).
Implication and Application
The HOPFP can be used as an alternative feed resource for lactating dairy cows. Practically,
smallholder farmers with low- and medium-producing dairy cows could use the findings.
Key words
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Article info
Publication history
Accepted:
July 11,
2021
Received:
March 30,
2021
Footnotes
The authors declare no conflicts of interest.
Identification
Copyright
© 2021 American Registry of Professional Animal Scientists. Published by Elsevier Inc. All rights reserved.
