Marrone Raffaele, Salzano Angela, Di Francia Antonio, Vollano Lucia, Di Matteo Roberto, Balestrieri Anna, Anastasio Aniello, Barone Carmela Maria Assunta
Department of Veterinary Medicine and Animal Production, University of Naples "Federico II", 80137 Naples, Italy.
Department of Agricultural Sciences, University of Naples "Federico II", 80055 Portici (NA), Italy.
Animals (Basel). 2020 May 21;10(5):899. doi: 10.3390/ani10050899.
We aimed to evaluate the effects of post dry ageing (PDA) period on meat colour and rheological characteristics in 16 buffalo bulls fed two different diets: with (FRS) or without (CTL) rye grass. Animals were randomly divided into two feeding groups and slaughtered at 540 ± 4.7 and 533 ± 7.0 kg of live body weight, respectively, for the CTL and FRS group. After five days post-mortem ageing (T0), muscle (ST) and muscle (LD) underwent a prolonged maturation process in a controlled meat chamber for 30 days (ST) and until 60 days (LD). After 30 days (T1), significant changes ( < 0.01) in meat colour (ΔE) in both muscles of the FRS group was recorded, while no significant change was observed in CTL group. The FRS diet had a positive effect on textural properties of ST muscle compared to CTL diet, as well as hardness, chewiness and gumminess. All qualitative characteristics improved in the first period of PDA but, whereas LD showed to keep improving, extending the post-ageing period by further 30 days, the ST becomes un-processable at 60 days. In conclusion, a combined used of fresh feeding and PDA period could enhance both tenderness and colour in animal fed FSR.
我们旨在评估干腌后期(PDA)对16头食用两种不同日粮(含或不含黑麦草)的水牛公牛肉色和流变学特性的影响。动物被随机分为两个饲养组,CTL组和FRS组分别在活体重540±4.7千克和533±7.0千克时屠宰。宰后成熟5天(T0)后,背最长肌(ST)和腰大肌(LD)在可控的肉室中进行了30天(ST)和直至60天(LD)的延长成熟过程。30天后(T1),FRS组两块肌肉的肉色(ΔE)均出现显著变化(<0.01),而CTL组未观察到显著变化。与CTL日粮相比,FRS日粮对ST肌肉的质地特性以及硬度、咀嚼性和黏性有积极影响。在PDA的第一个阶段,所有质量特性均有所改善,但是,虽然LD显示持续改善,将宰后老化期再延长30天,但ST在60天时变得无法加工。总之,新鲜饲养和PDA期的联合使用可以提高食用FSR的动物的嫩度和肉色。