Abstract

This study determined the effects of deep bedding floor and fermented feed supplement on the growth performance, carcase, meat quality, and fatty acid profile of crossbred pigs. Thirty-two ((Thai native × Meishan) × Duroc) crossbreds were organised in a 2 × 2 factorial arrangement in a completely randomised design. Factor A was a deep bedding floor (DB) or solid bedding of concrete floor (SB). Factor B was a feed type of concentrate feed supplemented with a fresh banana stem (BF + CON) or fermented banana stem (FF + CON). Growth performance, carcase traits, chemical composition, meat quality, and fatty acid profile were determined. The final weight, average daily gain, and feed conversion ratio of pigs reared on SB were significantly higher than those of pigs raised on DB. The backfat thickness and loin eye area of SB pork were also higher than those of DB pork (p < .05). Feed type had an effect on the percentage of rib, fat content, and TBARS on days 0, 1, and 3. FF + CON feed were lower, but shear force value and a grilling loss percentage of FF + CON were higher than those of BF + CON. The effect of the interaction between floor and feed types was found in the belly of four lean cut and rib percentage, fat content, and pH value in the longissimus dorsi muscle at 24 h and TBARS on Days 0, 1, 3, and 7 (p < .05). Pigs on the DB floor showed inferior carcase composition but slightly better meat quality than pigs raised on SB.

• HIGHLIGHTS

• Pigs on the concrete floor performed better than pigs on the deep bedding floor regarding final weight, average daily gain, and feed conversion ratio.

• The pork of pigs fed fermented banana stem showed lower lipid peroxidation that that of pigs fed fresh banana stem.

• Floor-type and feed type had no effect on the fatty acid profile of pork.

摘要

这项研究确定了深铺垫地板和发酵饲料添加剂对杂交猪的生长性能，case体，肉品质和脂肪酸谱的影响。在完全随机的设计中，以2×2析因排列组织了32种（（泰国本地人×眉山）×杜洛克）杂种。因子A是深垫层地板（DB）或实心垫层混凝土地板（SB）。因子B是补充有新鲜香蕉茎（BF + CON）或发酵香蕉茎（FF + CON）的浓缩饲料的饲料类型。确定了生长性能，case体性状，化学成分，肉质和脂肪酸谱。用SB饲养的猪的最终体重，平均日增重和饲料转化率显着高于用DB饲养的猪。p  <.05）。饲料类型对第0、1和3天的肋骨，脂肪含量和TBARS的百分比有影响。FF+ CON饲料较低，但FF + CON的剪切力值和烧烤损失百分比高于高炉+ CON。在第4、0、1、3和7天的24小时和TBARS期间，在4个瘦肉的腹部和肋骨百分比，脂肪含量和pH值的腹部中发现了底料和饲料类型之间的相互作用的影响（p  <.05）。DB地板上的猪的car体组成较差，但肉品质比SB上的猪略好。

• 强调

• 在最终重量，平均日增重和饲料转化率方面，水泥地板上的猪比深垫床上的猪表现更好。

• 饲喂发酵香蕉茎的猪的猪肉的脂质过氧化作用比饲喂新鲜香蕉茎的猪的脂质过氧化作用低。

• 地板类型和饲料类型对猪肉的脂肪酸谱没有影响。