1. Effect of feeding rice bran lyso-phospholipids and rumen protected fat on milk yield and milk composition in
crossbred cows
U.B. Sontakke, Harjit Kaur, A. K. Tyagi, M. Kumar and A. Hussain
Dairy Cattle Nutrition Division, National Dairy Research Institute, Karnal (India)
Introduction
Results
Table 2 Effect of RBLPL and RPF on milk fatty acid profile (% of total fatty acids)
Fatty acid
Group I
Group II
Group III
C8:0
0.94
0.87
0.89
C10:0
3.02
2.47
2.98
C12:0
3.38
3.09
3.18
C14:0
10.86
8.50
8.65
C14:1
0.85
1.18
1.07
C16:0
27.84
25.96
26.19
C16:1
1.43
1.64
1.76
C17:0
0.56
0.24
C18:0
16.48
12.95
13.76
C18:1
2.19
2.78
2.87
C18:1 Cis 9
26.28
27.31
27.19
C18:2
3.68
4.48
4.53
C18:3
0.84
0.93
0.92
C20:0
0.38
0.51
0.46
Total FA
98.73
92.91
94.69
Total unsaturated FA
35.27
38.32
38.34
Total saturated FA
62.90
54.35
56.11
Total LCFA
77.68
76.80
77.92
India has a large livestock population with a very low level per animal production.
Poor animal production is due to chronic shortage of protein and energy rich animal feeds, liberalization in export policy and inadequate availability of pastures due to shrinking grazing lands.
So there is a need to search for the possibilities of feeding alternative agro-industrial byproducts
Rice bran lyso-phospholipids is produced as
by product which is a potent source of energy
phospholipids.
Table 3 Economics of feeding RBLPL and RPF to lactating cows
Attribute
Group I
Group II
Group III
DMI (Kg/day)
12.14
11.77
11.88
Feed intake (fresh basis)
Green berseem intake (kg/d/animal)
27.96
27.12
27.37
Wheat straw intake (kg/d/animal)
3.96
3.84
3.87
Concentrate intake (kg/d/animal)
4.81
4.67
4.71
Feed cost (Rs.)*
Cost of green berseem (Rs./d/animal)
41.94
40.68
41.05
Cost of wheat straw (Rs./d/animal)
16.63
16.12
16.25
Cost of concentrate (Rs./d/animal)
69.74
57. 16
66.78
Total feed cost (Rs./d/ animal)
128.32
113.91
124.11
Average milk yield (kg/d/animal)
12.54
12.90
12.84
Gross income (Rs./ d/ animal) from selling of Rs.25/-kg milk
313.50
322.50
321.00
Average 4% FCM yield (kg/d/animal)
13.65
14.47
14.25
Gross income (Rs./ d/ animal) from selling of 4% Rs.23/-kg 4% FCM
313.95
332.81
327.75
Net return over feed cost (Rs./ d/ animal)
Milk Yield
208.59
196.89
4 % FCM yield
185.63
218.9
203.64
Feed cost (Rs.) per kg milk produced
10.24
8.83
9.67
Feed cost (Rs.) per kg FCM produced
9.40
7.88
8.71
Objectives
To study the effect of feeding RBLPL on milk yield, composition and fatty acid composition
To observe the effect of replacing rumen protected fat with rice bran phospholipids on milk yield and its composition
18 , Lactating Karan Fries
Group I *
(Control, n=6)
Ration-60% rouhghage+40% concentrate
Group II (n=6)
Control+6% RBLP
Group III (n=6)
Control+ 3% Rumen protected Fat (RPF)
Materials and Methods
Table1 Effect of RBLPL and RPF on milk composition and
nutrient intake
Experimental Period = 90 days
Parameter
Group I
Group II
Group III
DMI/day (kg)
12.14 ± 0.07
11.77 ± 0.09
11.88 ± 0.25
CP intake (kg/100kg BW)
0.44a ±0.01
0.44ab ± 0.00
0.45b ± 0.01
TDN intake (kg/100 kg BW)
1.97a ± 0.00
1.99ab ± 0.01
1.99 b ± 0.01
Milk yield kg/d
12.54b ±0.64
12.90 b ±0.52
12.84 b ± 0.67
Milk fat %
4.60a ± 0.02
4.81b ± 0.05
4.79b ± 0.06
Milk protein (%)
2.98 ±0.02
2.93 ± 0.04
2.92 ± 0.04
Milk Lactose (%)
4.34 ± 0.07
4.34 ± 0.04
4.36 ± 0.03
Milk SNF (%)
7.69 ± 0.06
7.68 ± 0.03
7.71 ± 0.03
Conclusion
RBLPL can replace the costlier sources of energy i.e. mustard oil and rumen protected fat in the diet of lactating animals.
Cows fed rice bran lyso-phospholipids were more economical in terms of whole milk and FCM production.
Rice bran lyso-phospholipids can be safely 6% in the ration of dairy cows without any adverse effect on digestibility of nutrients and milk production.
Parameters studied:
Daily dry matter intake
Daily milk yield
Fortnightly body weight of the animals
Fortnightly milk composition and fatty acid
profile
*To make iso- energetic diets , mustard added