Page 128 - Agroforestry system - book inner (final corrected) - 9.-3-21_Neat

National level e-symposium on “Agroforestry system for augmenting livestock
productivity and empowering resource poor rural farmers”

Table 1: Proximate composition, mineral content (% DMB) and Gross energy of
Jatropha oil cake (Mean* ± SE)
Nutritive value Per cent

Crude protein 20.47 ± 0.02
Crude fibre 31.49 ± 0.49
Ether extract 10.24 ± 0.10

Total ash 5.90 ± 0.03
Calcium 1.29 ± 0.01
Phosphorous 0.57 ± 0.01
Salt 0.21 ± 0.01
Sand & silica 0.61 ± 0.01
Gross energy (kcal/kg) 4336 ± 55.50

*Mean of six samples

The levels of Aflatoxin B1 and B2 in Jatropha oil cake was 14.9 ± 0.10 ppb and 11.95 ± 0.05 ppb
respectively. No traces of other mycotoxins viz. AFG , AFG , zearalenone, ocharotoxin, T-2 toxin and citrinin
2
1
were detectable.
Treated jatropha oil cake with 2 % calcium hydroxide was found palatable in sheep and goats at 5 %
inclusion level in the concentrate ration. This could be due to reduction in phorbol esters level (anti nutrient
factor) in the treated jatropha oil cake.

The animal performance in the feeding trial of goats with 5% inclusion level is presented in table 2.

Table 2: Growth performance of goats by feeding calcium hydroxide treated
jatropha oil cake (Mean* ± SE)

Control (Conventional concentrate Detoxified Jatropha oilcake @ 5%
Parameters*
feed) level in concentrate feed
Initial body weight (kg) 7.36±0.59 7.44±0.85

Final body weight (kg) 11.47±0.56 11.43±0.77
Weight gain (kg) 4.11±0.04 3.99±0.14
Average Daily Gain (g) 45.66±0.50 44.37±1.61

*NS – non significant

Conclusion

Detoxified jatropha oil cake was found to be palatable and can be used as feed ingredient in small
ruminants. However, the detoxification cost of jatropha oil cake increases concentrate feed cost of goat.

Institute of Animal Nutrition, Centre for Animal Production Studies, TANUVAS
National Bank for Agriculture and Rural Development 109