Seasonal dynamics and possible development of total count of microorganisms in sheep’s milk

Abstract

The work is focused on the evaluation of seasonal dynamics of the total count of microorganisms in sheep's milk and on the proposal of developing cut-off values for standard limitation for the next fifteen years for hygienic safety support. The total count of microorganisms was measured between years 2012-2014 (n = 4,746). The results were statistically evaluated using medians, geometric means, arithmetic means, means of log values (log 10 ) and standard deviations for the cut-off limit determination. This model was patterned on the maximum of total count of microorganisms in the tested percentiles 95 (statistical conventional interval), 91, 90, 80 and 70% and on the result of medians (from 109 to 148 × 10 3 cfu/ml). These cut-off limits were divided into three classes (I to III) of standard quality, and the model of dynamics for their gradual implementation time was created as follows: initiation period (class I = ≤ 800; II = from 801 to 1,300; III = 1,301 to 4,000; non-standard = > 4,000 × 10 3 cfu/ml); second period (class I = ≤ 550; II = 551 to 800; III = 801 to 1,300; non-standard = > 1,300 × 10 3 cfu/ml); third period (standard class = ≤ 800 × 10 3 cfu/ml); fourth period (standard class = ≤ 550 × 10

Bacteriological Quality of Raw Ovine Milk from Different Sheep Farms

“…By gradual implementation of the system, a regulatory limit of 3.0 × 10 5 CFU/mL (5.48 log 10 CFU/mL) for MBC in raw ewe’s milk may reasonably be set after 15 years. The corresponding threshold value in raw ovine milk intended for processing without heat treatment can be as low as 2.0 × 10 5 CFU/mL (5.30 log 10 CFU/mL) within the same timeframe [ 11 ].…”

Безпека І Мікробіологічна Чистота Сухого Кобилячого Та Овечого Молока Для Виробництва Дитячого Харчування

“…Автори у праці [15] зосередились на оцінці сезонної динаміки загальної кількості мікроорганізмів в овечому молоці. Але не проводили дослідження щодо показників безпеки у продуктах для дитячого харчування.…”