Association between measures of milk quality and risk of violative antimicrobial residues in grade-A raw milk

2000 ◽  
Vol 217 (4) ◽  
pp. 541-545 ◽  
Author(s):  
William J. A. Saville ◽  
Thomas E. Wittum ◽  
K. Larry Smith
Keyword(s):  
Raw Milk ◽  
Milk Quality ◽  
Antimicrobial Residues

scholarly journals AVALIAÇÃO DA QUALIDADE DO LEITE CRU E PREVALÊNCIA DE MASTITE NO MUNICÍPIO DE MOSSORÓ-RN / EVALUATION OF RAW MILK QUALITY AND PREVALENCE OF MASTITIS IN MOSSORÓ-RN

2020 ◽  
Vol 6 (8) ◽  
pp. 64027-64042
Author(s):  
Palloma Vitória Carlos de Oliveira ◽  
Evilásio de Souza Lima Neto ◽  
Neymar Mendes Lucena ◽  
Maria Rociene Abrantes ◽  
Jean Berg Alves da Silva ◽  
...  
Keyword(s):  
Raw Milk ◽  
Milk Quality

Assessment of milk quality based on bovine BAF60c gene mutation

2018 ◽  
Vol 156 (4) ◽  
pp. 570-574
Author(s):  
J. Liao ◽  
T. Ku ◽  
Y. F. Liu ◽  
J. Zhao
Keyword(s):  
Milk Fat ◽  
Fragment Length Polymorphism ◽  
Raw Milk ◽  
Milk Quality ◽  
Quality Traits ◽  
Fat Percentage ◽  
Milk Samples ◽  
Polymerase Chain ◽  
Solids Content

AbstractMonitoring milk quality traits and the classification of raw milk are important steps for generating high-quality dairy products. Given the important roles of the BRG1/BRM-associated factor 60c (BAF60c) gene in the regulation of physiological growth and production, the objective of the current study was to analyse the association between the BAF60c gene and milk quality and establish a gene-based method for pre-evaluating raw milk quality. For this purpose, DNA was isolated from 507 milk samples and genotyped using the polymerase chain reaction-restricted fragment length polymorphism method. Milk quality traits including milk protein percentage (MPP), milk fat percentage (MFP), lactose percentage (LP) and total solids content (TSC) were also evaluated from the same 507 milk samples. The newly found 6060 T > C mutation of the BAF60c gene was associated significantly with MPP and LP, but not with MFP and TSC. The results demonstrated that this mutation could be used for the pre-evaluation of MPP and LP; therefore, raw milk could be graded according to different genotypes.

Evaluation of Raw Milk Quality Tests

1978 ◽  
Vol 41 (5) ◽  
pp. 356-360 ◽  
Author(s):  
C. H. WHITE ◽  
W. T. GILLIS ◽  
D. L. SIMMLER ◽  
M. K. GALAL ◽  
J. R. WALSH ◽  
...  
Keyword(s):  
Raw Milk ◽  
Milk Quality ◽  
Large Percentage ◽  
The Other ◽  
Milk Samples ◽  
Naturally Occurring ◽  
The Mean

A study was done to evaluate raw milk quality tests in an attempt to answer some questions regarding values or standards by which milk acceptance is determined. Initially, of 315 individual producer samples, 226 (72%) had proteolytic psychrotrophs. More than 90% of these psychrotrophs were of the genus Pseudomonas. All samples were obtained from four dairy companies processing milk in Georgia. One dairy had individual producers whose milk samples contained a large percentage of thermoduric psychrotrophs. “Bitter” flavors were more prevalent in samples collected from this dairy than in samples from the other three dairies. The degree of measurable proteolysis (Hull value) was directly correlated with the incidence of the naturally occurring “bitter” flavor. The mean Hull value for milk from this dairy (30.62 μg/ml) was 12–14 μg higher than the other three means. The mean Hull value for the “bitter” samples was 46 μg/ml.

The Study of Raw Milk Quality Control

2013 ◽  
Vol 411-414 ◽  
pp. 2417-2422
Author(s):  
Yao Li Zhang ◽  
Jing Chen ◽  
Xin Zhong
Keyword(s):  
Dairy Products ◽  
Detection Method ◽  
Microbiological Quality ◽  
Raw Milk ◽  
Test Methods ◽  
Milk Quality ◽  
Living Standard ◽  
Practical Consideration ◽  
Key Points

Now, along with the improvement of people's living standard, more and more people quality safety problems of dairy products by the attention. Milk quality index basically has sensory indexes and physiochemical index, microbiological quality and harmful material residues and pollutants quantity four aspects. Regarding the enterprise, it wants to produce milk, besides should assured teaches defend in production of various indexes; outside the control of raw also cannot be ignored. The key points to control of raw comparison of raw index are to ensure effective method.In recent years, as environmental pollution increasingly heavier, antibiotics, making the wrong use already slowly pollution to harmful material variety of dairy products, in the milk antibiotic and heavy metal content has become the focus of people are indexes. First, in this paper introduces dairy products can exist of antibiotic types and the detection method, then to mercury as example, the paper introduces the current national state currently can several methods of determination of mercury, through the practical consideration, find a relatively simple, efficient, feasibility big test methods.

Effects of raw milk quality on fouling at UHT conditions

1995 ◽  
Vol 48 (3) ◽  
pp. 97-99 ◽  
Author(s):  
P KASTANAS ◽  
S RAVANIS ◽  
M J LEWIS ◽  
A S GRANDISON
Keyword(s):  
Raw Milk ◽  
Milk Quality

scholarly journals Prevalence of clinical and subclinical mastitis and quality of milk on smallholder dairy farms in Tanzania

2009 ◽  
Vol 80 (3) ◽  
Author(s):  
R.H. Mdegela ◽  
R. Ryoba ◽  
E.D. Karimuribo ◽  
E.J. Phiri ◽  
T. Loken ◽  
...  
Keyword(s):  
Antimicrobial Agents ◽  
Dairy Farms ◽  
Subclinical Mastitis ◽  
Clinical Mastitis ◽  
Milk Quality ◽  
Herd Level ◽  
Milk Samples ◽  
Antimicrobial Residues ◽  
Smallholder Dairy ◽  
Smallholder Dairy Farms

A cross sectional study was conducted during October and November 2006 on 69 smallholder dairy farms with lactating cows in Mvomero and Njombe districts Tanzania, to determine the prevalence of mastitis and to assess the milk quality on the study farms. Clinical mastitis was investigated using clinical changes of udder and milk at animal level. Cow-side California Mastitis Test (CMT) and microbiological cultures were used to assess subclinical mastitis at quarter level. Milk quality was determined on bulk milk samples at herd level using alcohol and acidity tests, butter fat content, total solids, ash content as well as Delvotest® for antimicrobial residues. Overall prevalence of clinical mastitis at herd level in both districts was 21.7 % (n = 69). Based on CMT, prevalence of subclinical mastitis at animal level was 51.6 % (n = 91). Prevalence of bacterial isolates at animal level was 35.2 % (n = 91) while for fungal it was 16.7 % (n = 90). Based on CMT results, prevalence of subclinical mastitis at quarter level was 30 % (n = 353), while for bacteria and fungi it was 16 % and 6 % respectively. Contamination of milk with antimicrobial residues was 4.5 % (n =67). The milk quality parameters for most of the milk samples were within acceptable levels. Findings in this study have demonstrated high prevalence of subclinical mastitis that may contribute to low productivity of dairy cattle in both districts. About 20 % of CMT subclinical cases had no involvement of microbial pathogens that suggested the need for minimal interventions with antimicrobial agents. These findings call for use of udder disinfectants and improved milking hygiene as intervention strategies to control mastitis on the smallholder dairy farms in Tanzania.

Importance of Standardizing Raw Milk Quality for the Enhancement of Croatian Market Competitiveness

2009 ◽  
Vol 21 (2-3) ◽  
pp. 207-213
Author(s):  
Zdravko Tolu[sbreve]ić ◽  
Pero Mijić ◽  
Marija Tolu[sbreve]ić
Keyword(s):  
Raw Milk ◽  
Milk Quality ◽  
Market Competitiveness
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