Open AccessInfluence of tannin-rich pine bark supplementation in the grain mixes for meat goats: Growth performance, blood metabolites, and carcass characteristics
Author(s) -
Desnatie Reynolds,
Byeng R. Min,
Nar Gurung,
W. H. McElhenney,
Jung Hoon Lee,
S. G. Solaiman,
Olga BoldenTiller
Publication year - 2020
Publication title -
animal nutrition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.356
H-Index - 28
eISSN - 2405-6545
pISSN - 2405-6383
DOI - 10.1016/j.aninu.2019.09.003
Subject(s) - tannin , zoology , crossbreed , biology , hay , bark (sound) , condensed tannin , pasture , proanthocyanidin , food science , agronomy , polyphenol , biochemistry , ecology , antioxidant
The objective was to evaluate the use of condensed tannin (CT)-rich ground pine bark (PB) in grain mixed diets on meat goat growth performance, blood metabolites, and carcass characteristics. Twenty four Kiko crossbred ( Capra aegagrus hircus ) growing male kids (BW = 36.9 ± 2.5 kg) at approximately 8 months of age were assigned randomly to 2 treatments with 3 replicates per treatment and 4 goats per replicate. The goats were fed grain mixed diets composed of either 30% bermudagrass hay (BGH) plus concentrate (control) or 30% PB plus concentrate. Diets were fed at 1.2% of BW. In addition, all goats grazed a crabgrass/bermudagrass (CB)-based pasture. The feeding trial lasted for 55 d. Using ground PB as a supplement did not negatively affect BW, average daily gain (ADG), carcass characteristics, meat pH, and meat color compared to the control diet. Plasma gamma-glutamyl transferase ( P = 0.03), glucose ( P < 0.01) and Ca concentrations ( P = 0.04) were higher for PB than for BGH, respectively. The 30% PB supplementation does not negatively affect animal performance, blood metabolites, and carcass parameters.