Effect of feeding detoxified Jatropha curcas meal on carcass characteristics and meat quality in lambs

S S PATIL; K SHARMA; NARAYAN DUTTA; A K PATTANAIK; S K MENDIRATTA

doi:10.56093/ijans.v85i3.47334

Authors

S S PATIL Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh 243 122 India
K SHARMA Formerly ADG (HRD), Flat No 05073, Ats Greens Paradiso, Sector Chi 04, Greater Noida 201310
NARAYAN DUTTA Principal Scientist, Centre, Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh 243 122 India
A K PATTANAIK Principal Scientist, Centre, Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh 243 122 India
S K MENDIRATTA Head, Department of Livestock Product Technology, Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh 243 122 India

https://doi.org/10.56093/ijans.v85i3.47334

Keywords:

Carcass characteristics, Detoxified jatropha meal, Jatropha, Lambs, Meat quality, Phorbol esters

Abstract

Lambs (24) of about 3 to 4 months of age with an average body weight of 15.76±1.92 kg were divided randomly into 4 groups of 6 each as per completely randomized design and allocated to 4 dietary treatments dJM-0, dJM- 12.5, dJM-25 and dJM-37.5. Lambs in dJM-0 were fed with concentrate mixture containing soybean meal as the major protein source, while those from the rest of the 3 groups were fed concentrate mixtures containing detoxified jatropha meal (dJM) replacing soybean meal of control at 12.5, 25.0 and 37.5% level, respectively, on iso-nitrogenous basis. The lambs were scarified after 180 days of experimental feeding. The voluntary feed intake of lambs did not differ significantly among the dietary treatments. Pre-slaughter weight (PSW), carcass yield, carcass length and loin eye area of lambs were similar between control and treatment groups. Similarly, yield of wholesale cuts, edible and non-edible visceral organs were comparable among groups. Chemical composition, physico-chemical properties and phorbol esters concentration of Longissimus dorsi (LD) muscle did not differ significantly among groups. Organoleptic scores and tenderness of pressure cooked LD muscle samples with salt (1.5% w/w) were also comparable among the treatment groups. It may be concluded that soybean meal cake can be replaced with detoxified jatropha meal up to 37.5% in the diet of growing lambs without any apparent adverse impact on carcass yield and meat quality.

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