Zuberi R, Qadri R B, Siddiqui P M
Zentralbl Bakteriol Mikrobiol Hyg B. 1985 Dec;181(3-5):418-29.
Bacterial counts were made over a period of two years of two important commercial shrimp varieties of Karachi coastal waters. Bacteria were also isolated and identified. Total number of bacteria were found to be remarkably equal at 37 degrees, 30 degrees and 25 degrees C. Aerobic plate count of Penaeus merguiensis at 37 degrees C ranged from 1.2 X 10(5) to 6.0 X 10(7) CFU/g (Median 1.8 X 10(6) CFU/g), and were predominantly Vibrio, Micrococcus, Pseudomonas, Staphylococcus, Bacillus, and Flavobacterium. The corresponding count at 30 degrees C ranged from 3.2 X 10(5) to 4.7 X 10(7) CFU/g (Median 2.6 X 10(6) CFU/g). The bacterial flora in order of predominance were Vibrio, Micrococcus, Pseudomonas, Moraxella, Flavobacterium, Bacillus, Alteromonas, and Acinetobacter. The 25 degrees C counts ranged from 5.3 X 10(5) to 8.5 X 10(7) CFU/g (Median 3.1 X 10(6) CFU/g), the flora was composed of Vibrio, Moraxella, Micrococcus, Pseudomonas, Flavobacterium, Bacillus, Alteromonas, and Acinetobacter in order of predominance. The aerobic plate count of Metapenaeus monoceros at 30 degrees C ranged from 8.4 x 10(5) to 3.8 x 10(7) CFU/g (Median 2.9 x 10(6) CFU/g). The bacterial flora in order of predominance were Vibrio, Micrococcus, Moraxella, Pseudomonas, Alteromonas, Flavobacterium and Staphylococcus. No significant qualitative or quantitative difference was obtained between the two shrimp species. The presence of Staphylococcus at 37 degrees C was attributed to favourable incubation temperature as well as to excessive unsanitary handling while the absence of Moraxella and Alteromonas putrefaciens at this temperature was considered due to the psychotrophic nature of these organisms.
对卡拉奇沿海水域两种重要商业虾类品种进行了为期两年的细菌计数。还对细菌进行了分离和鉴定。发现在37摄氏度、30摄氏度和25摄氏度时细菌总数明显相等。墨吉对虾在37摄氏度时的好氧平板计数范围为1.2×10⁵至6.0×10⁷CFU/g（中位数为1.8×10⁶CFU/g），主要为弧菌属、微球菌属、假单胞菌属、葡萄球菌属、芽孢杆菌属和黄杆菌属。30摄氏度时的相应计数范围为3.2×10⁵至4.7×10⁷CFU/g（中位数为2.6×10⁶CFU/g）。优势顺序的细菌菌群为弧菌属、微球菌属、假单胞菌属、莫拉菌属、黄杆菌属、芽孢杆菌属、交替单胞菌属和不动杆菌属。25摄氏度时的计数范围为5.3×10⁵至8.5×10⁷CFU/g（中位数为3.1×10⁶CFU/g），菌群按优势顺序由弧菌属、莫拉菌属、微球菌属、假单胞菌属、黄杆菌属、芽孢杆菌属、交替单胞菌属和不动杆菌属组成。独角新对虾在30摄氏度时的好氧平板计数范围为8.4×10⁵至3.8×10⁷CFU/g（中位数为2.9×10⁶CFU/g）。优势顺序的细菌菌群为弧菌属、微球菌属、莫拉菌属、假单胞菌属、交替单胞菌属、黄杆菌属和葡萄球菌属。两种虾类之间未获得显著的定性或定量差异。37摄氏度时葡萄球菌属的存在归因于适宜的培养温度以及过度不卫生的处理，而该温度下莫拉菌属和腐败交替单胞菌的不存在被认为是由于这些微生物的嗜冷性质。
