EFFECT OF A PLANT EXTRACT MIXTURE AS AN ALTERNATIVE TO RACTOPAMINE HYDROCHLORIDE ON GROWTH PERFORMANCE AND CARCASS CHARACTERISTICS OF FINISHING PIGS

Hanna Mae A. Rustia, Krystalene S. Decena, Marie Fe M. Iranzo, Rommel C. Sulabo

Abstract


A plant extract mixture (PEM) composed of garlic (Allium sativum), licorice (Glycyrrhiza glabra), ginger (Zingiber officinale), and myrobalan (Terminalia chebula) was evaluated as an alternative to ractopamine-HCl (RAC) in finishing pigs. Thirty growing pigs (initial BW=46.8±4.6 kg; PIC 337×C24) were allotted to five treatments using a randomized complete block design. Diets were fed on a 3-phase diet series (grower, d 0 to 21; finisher 1, d 22 to 42; and finisher 2, d 43 to 65). The treatments were: 1) negative control, 2) diets with 0.20% PEM, 3) diets with 0.20% PEM from finisher 1 to finisher 2, 4) diet with 0.20% PEM in finisher 2, and 5) diet with 0.05% RAC in finisher 2. Each treatment had 6 replicates. From d 43 to 65, RAC or PEM tended (P=0.09) to improve F/G compared with PEM fed for the entire 65 d. Overall (d 0 to 65), growth performance and carcass characteristics did not significantly differ among the treatments. In conclusion, 0.20% PEM does not improve the carcass quality of finishing pigs; however, PEM in the late finisher phase may replace the feed efficiency effects of RAC.

Keywords


plant extracts, carcass quality, growth performance, finishing pigs, ractopamine

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