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Effect of feeding tannin-degrading bacteria Streptococcus gallolyticus strain TDGB 406 on meat quality of goats fed with Quercus semicarpifolia leaves

Abstract

The effect of feeding tannin-degrading bacteria (Streptococcus gallolyticus strain TDGB 406) on carcass characteristics of goats fed with oak (Quercus semicarpifolia) leaves was studied on 18 male goats (4 months old, average body weight 9.50 ± 1.50 kg), distributed into three groups of six animals each. The animals of group 1 served as control, while the animals of groups 2 and 3 were given (at 5 ml/kg live weight) autoclaved and live culture of isolate TDGB 406 (106 cells/ml), respectively. The animals were fed with oak leaves as a basal roughage source and maize hay along with fixed quantity of concentrate mixture. After 4 months of feeding, the animals were slaughtered for carcass studies. The feeding of live culture of isolate TDGB 406 did not cause any effect (P > 0.05) on pre-slaughter weight, empty body weight, carcass weight, dressing percent, and yield of wholesale cuts (neck, rack, shoulder, breast, shank, loin, leg, and flank) of the goat meat. The chemical composition of longissimus dorsi muscle was comparable (P > 0.05) among the groups. The organoleptic evaluation of pressure-cooked meat in terms of tenderness and overall palatability was increased significantly (P < 0.05) in the meat of group 3 where live culture was supplemented. The other attributes were similar among the groups. It was concluded that supplementation of tannin-degrading bacteria S. gallolyticus strain TDGB 406 to goats fed with oak leaves did not affect the carcass characteristics and meat quality.

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Acknowledgments

The research facility provided by the Director of IVRI, Izatnagar, DBT, New Delhi (Grant No. BT/PR8696/AAQ/01/317/2007), and UGC for research fellowship is gratefully acknowledged.

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Correspondence to L. C. Chaudhary.

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This research work was carried out as per the approved guidelines of the institute.

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The authors declare that they have no conflict of interest.

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Kumar, K., Chaudhary, L.C., Agarwal, N. et al. Effect of feeding tannin-degrading bacteria Streptococcus gallolyticus strain TDGB 406 on meat quality of goats fed with Quercus semicarpifolia leaves. Trop Anim Health Prod 48, 1513–1516 (2016). https://doi.org/10.1007/s11250-016-1113-7

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Keywords

  • Goat meat
  • Oak leaves
  • Probiotic
  • Streptococcus gallolyticus
  • Tannin-degrading bacteria