Guo Yawen, Chen Jinyuan, Liu Shuyu, Zhu Yali, Gao Pengfei, Xie Kaizhou
College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China.
Joint International Research Laboratory of Agriculture & Agri-Product Safety, Yangzhou University, Yangzhou 225009, China.
J Anim Sci Technol. 2022 Sep;64(5):950-969. doi: 10.5187/jast.2022.e59. Epub 2022 Sep 30.
This study aimed to determine the effect of dietary supplementation with culture (ATC) on the quality, conventional characteristics, and flavor substances of Hortobágy goose meat. A total of 720 one-day-old goslings were divided into four dietary treatments, each consisting of six cages of 30 goslings. The dietary conditions consisted of the control group and three treatment groups supplemented with 3, 5, or 7 g/kg ATC. In male geese, supplementation with 3 g/kg ATC elevated the crude ash (CA) content of the thigh muscle compared to the control group, and the CA content of the pectoralis major was significantly elevated when geese were supplemented with 5 g/kg ATC ( < 0.05). In females, compared with the control group, supplementation with 7 g/kg ATC enhanced the crude protein (CP) content of the pectoralis major. Supplementation with 7 g/kg ATC also increased the crude fat (CF) content of the pectoralis major in females as well as in both sexes; moreover, this supplementation dose increased the inosinic acid content of the thigh muscle in males and in both sexes. In contrast, supplementation with 5 g/kg ATC decreased the pH of the thigh muscle at 12 h postmortem ( < 0.01). No significant changes in meat color, water loss rate, shear force, moisture content or amino acid (AA) levels were observed after ATC supplementation ( > 0.05). Levels of saturated fatty acids (SFAs) and polyunsaturated FAs (PUFAs) in the pectoralis major and levels of SFAs, monounsaturated FAs (MUFAs), and PUFAs in the thigh muscle were not affected by the supplementation. Overall, ATC supplementation had positive effects on the pH, and CA, CP, CF, inosinic acid contents as well as on the FA composition of gosling meat. The optimal level of ATC supplementation was 7 g/kg in goslings from 1 to 70 days of age.
本研究旨在确定添加培养物(ATC)对霍托巴吉鹅肉品质、常规特性和风味物质的影响。总共720只1日龄雏鹅被分为四种日粮处理组,每组由六个笼子组成,每个笼子有30只雏鹅。日粮条件包括对照组和三个添加3、5或7 g/kg ATC的处理组。在雄性鹅中,与对照组相比,添加3 g/kg ATC提高了大腿肌肉的粗灰分(CA)含量,当鹅添加5 g/kg ATC时,胸大肌的CA含量显著升高(P<0.05)。在雌性鹅中,与对照组相比,添加7 g/kg ATC提高了胸大肌的粗蛋白(CP)含量。添加7 g/kg ATC还增加了雌性以及两性胸大肌的粗脂肪(CF)含量;此外,该添加剂量增加了雄性以及两性大腿肌肉的肌苷酸含量。相比之下,添加5 g/kg ATC降低了宰后12 h大腿肌肉的pH值(P<0.01)。添加ATC后,肉色、失水率、剪切力、水分含量或氨基酸(AA)水平未观察到显著变化(P>0.05)。胸大肌中饱和脂肪酸(SFA)和多不饱和脂肪酸(PUFA)的水平以及大腿肌肉中SFA、单不饱和脂肪酸(MUFA)和PUFA的水平不受添加物的影响。总体而言,添加ATC对雏鹅肉的pH值、CA、CP、CF、肌苷酸含量以及脂肪酸组成有积极影响。1至70日龄雏鹅的最佳ATC添加水平为7 g/kg。