Effect of betaine on fat content in growing lambs

摘要: A total of 48 weaned Manchego breed lambs (same number males and females) with an initial live weight 11.5 kg were randomly distributed into four pens to study the effect betaine supplementation in a 2×2 factorial design dietary sex as main effects. Weaned females fed on starter diet for 3 weeks (aprox 20 kg weight) then changed finisher another weeks. Within each feeding period, diets containing 0 or 2 g kg−1 group lambs. No was observed gain final body The evolution over time ultrasonic determination subcutaneous fat thickness (FT) showed significant lower FT from near week experiment slaughter receiving enriched (P<0.0001). FT. Measurement longissimus dorsi muscle area no diet. Muscle measured carcass similar results. concentration neutral lipid intramuscular than those basal diet, also (P=0.0211), which suggest generalized lowering animal all lamb tissues. polar muscle. individual fatty acids any case, but had slightly (n-6) (P=0.0479) higher monounsaturated (P=0.0478) lipids fat.