Effects of modified tall oil versus a commercial source of conjugated linoleic acid and increasing levels of modified tall oil on growth performance and carcass characteristics of growing-finishing pigs.

作者: P R O'Quinn , J L Nelssen , R D Goodband , J A Unruh , J C Woodworth

DOI: 10.2527/2000.7892359X

关键词: MealAnimal scienceBiotechnologyChemistryFeed conversion ratioTall oilLinoleic acidWeight gainConjugated linoleic acidAnimal feedSoybean oil

摘要: Two experiments were conducted to evaluate the effects of conjugated linoleic acid (CLA)-enriched feed additives for swine. These included a source CLA that was commercially available (CLA-60) and modified tall oil (MTO). Experiment 1 used 36 barrows (initially 37.6+/-2.8 kg) compare CLA-60 MTO on growth performance carcass characteristics finishing pigs. The corn-soybean meal diets contained .50% soybean (control), CLA-60, or MTO. Pigs fed had less (P = .03) ADG from 37.6 72.6 kg than control pigs; otherwise, pigs either similar > .15) grew faster consumed more .10) over duration experiment (37.6 106.4 CLA-60. Dietary treatment did not affect plasma triglycerides characteristics, but greater saturation fatty acids in adipose tissue at 10th rib diet. 2 80 33.4+/-2.2 examine increasing levels diet 1% cornstarch, which replaced with give dietary .25, .50, 1.00% performance. Feeding quadratically decreased .02) average backfat thickness longissimus muscle drip loss .04) increased area .07) percentage lean .03). tended increase belly firmness < compared traits appeared be optimized In summary, ADG, ADFI, ending BW does appear improves content may additionally improve some aspects meat quality growing-finishing

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