1580
Influence of Fibrolytic Enzyme Supplements on production performance of Lactating Buffaloes in Early Lactation
The use of biotechnology such as exogenous fibrolytic enzymes to enhance quality and digestibility of fibrous forage is a novel approach for delivering practical benefits to ruminant production systems. A study was conducted to evaluate the use of commercial exogenous enzymes as feed additives with Lactating Buffaloes on milk yield and composition. Twenty one lactating buffaloes in early lactation had body weight on average (570±15 kg) were divided into three groups (seven animals each) using complete random design. Animals were fed individually on basic diet total mixed rations (TMR; 60% forage: 40% concentrate, dry matter basis). Treatments were 1) no additives (control), 2) 40g Tomoko®/head/day (Tom), and 3) 40g Veta-Zyme Plus®/head/day (Vet). Animals were milked twice daily and milk production was recorded at every milking. Milk samples were obtained every two weeks from each buffalo at all milkings in order to determine milk composition. The enzyme additive did not alter dry matter intake, but Milk yield, 4% Fat Corrected Milk, and Fat percent significantly increased with (Vet) treatment than all other treatments. However, total protein percent increased (P<0.05) with (Vet) and (Tom) treatments than control. Regarding the milk fatty acids profile, it was found that the total unsaturated fatty acids and conjugated linolenic acid (CLA) were increased (P=0.08) with (Vet) and (Tom) groups compared with control. Therefore, the addition of an exogenous fibrolytic enzyme additive to the diet of lactating buffaloes affected milk production as well as milk quality.
Items |
control |
Vet |
Tom |
±SE |
Pro>F |
Milk yield(Kg/day) |
7.26b |
7.91a |
7.59ab |
0.095 |
0.007 |
4% FCM (kg/day) |
10.36 |
11.56 |
10.93 |
0.071 |
0.061 |
Fat % |
6.86 |
7.10 |
6.96 |
0.044 |
0.072 |
Total Protein % |
3.88b |
4.02ab |
4.20a |
0.051 |
0.023 |
Casein % |
2.87b |
3.14a |
3.30a |
0.058 |
0.001 |
Whey % |
0.827 |
0.804 |
0.845 |
0.014 |
0.495 |
NPN % |
0.037a |
0.035a |
0.028b |
0.001 |
0.033 |
True protein % |
3.843b |
3.985ab |
4.172a |
0.065 |
0.031 |
Urea N. mg/g |
28.14a |
20.80b |
21.00b |
0.965 |
0.000 |
Lactose % |
4.66 |
4.73 |
4.68 |
0.029 |
0.871 |
Ash % |
0.802 |
0.800 |
0.784 |
0.010 |
0.776 |
Total solids % |
16.26 |
16.56 |
16.82 |
0.150 |
0.336 |
Solids not fat % |
9.44 |
9.46 |
9.86 |
0.138 |
0.405 |
Total CLA (g/100g fat) |
0.23 |
0.32 |
0.25 |
0.053 |
0.081 |
Keywords:
Fibrolytic enzyme, lactating buffaloes, Milk yield and composition.