Effect of physically effective neutral detergent fibre and moisture content in fermented total mixed ration on lactating cow performance
2019
Nha, B. | Pattarajinda, V.
This experiment aimed to determine the effectiveness of physically effective neutral detergent fibre as peNDF₁.₁₈ ₘₘ and the moisture levels of fermented total mixed rations (FTMR) in lactating cow performance. Eight crossbred Holstein cows with 430±17.1 kg BW in mid-lactation were used in a 4 × 4 replicated Latin square design (LSD). The treatments consisted of 20 and 25% physically effective neutral detergent fibre (peNDF) and 30 and 60% moisture contents. The results showed that DMI, and DMI of %BW0.75 were increased in 20 and 25% of peNDF with 30% moisture content. CP, EE, NDF, ADF and NFC digestibility was increased on 25% peNDF with 60% moisture content in FTMR. Acetate was increased in 25% peNDF (P<0.05), but propionate was higher in 20% peNDF compared to 25% peNDF. Milk fat percentage was increased in 25% peNDF. No differences were observed in blood glucose and BUN. Consequently, 20 and 25% peNDF₁.₁₈ ₘₘ with 60% moisture content in FTMR were the optimum levels for lactating cows.
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