scholarly journals Post-dipping in Milk Production, Composition, and Quality

2021 ◽  
pp. 44-50
Author(s):  
Elizabeth Simões do Amaral Alves ◽  
João Manoel Da Silva ◽  
Micheline Thais dos Santos ◽  
Yamina Coentro Montaldo ◽  
Paula Cibelly Vilela Da Silva ◽  
...  
Keyword(s):  
Milk Production ◽  
Subclinical Mastitis ◽  
Percentage Increase ◽  
Effective Measure ◽  
Total Solids ◽  
California Mastitis Test ◽  
Significant Difference ◽  
Staphylococcus Spp ◽  
Production Composition

This study aimed to evaluate the influence of post-dipping on milk production, composition, and quality of cows with subclinical mastitis. Samples of mast milk from two different dairy farms were analyzed in two moments: before the post-dipping implantation and after 30 days, the samples were conditioned to the refrigeration temperature in an isothermal box and sent to the laboratory for the following analyzes: California Mastitis Test (CMT), Somatic Cell Count (SCC), Fat, Protein, Lactose, Total Solids (TS), Non-Fat Solids (NFS) and microbiological tests, as well as individual milk weighing. The experimental design was completely randomized and arranged in a split-plot scheme, submitted to analysis of variance (ANOVA) by the F test. The post-dipping practice during 30 days resulted in the means and standard deviation of the analyzes of the studied variables, where the values of SCC, CMT, and microbiological score profile were statistically significant. The highest etiological agent found was Staphylococcus spp. The fat and lactose profile increased in both farms, but there was no significant difference. Protein increased in both farms, but in farm I, there was no significant difference and in farm 2, there was a significant difference. Total Solids, Non-greasy solids, and weighing had a percentage increase, but the means of weight did not differ statistically. The post-dipping technique was an effective measure in the control of subclinical mastitis and brings health benefits to the mammary gland.

Subclinical mastitis assessed by deviations in milk yield and electrical resistance

1998 ◽  
Vol 65 (1) ◽  
pp. 31-41 ◽  
Author(s):  
EZRA SHOSHANI ◽  
AMIEL BERMAN
Keyword(s):  
Milk Production ◽  
Milk Yield ◽  
Test Scores ◽  
Electrical Resistance ◽  
Subclinical Mastitis ◽  
Control Group ◽  
Case Group ◽  
Frequency Distributions ◽  
California Mastitis Test ◽  
Significant Difference

Concurrent falls in milk production and electrical resistance of composite milk were examined in Israeli Holstein cows. The cows were milked three times a day by a system that recorded yield and the lowest electrical resistance in the composite milk from the four glands. The study included two groups: cows that experienced on day 0 a decline in resistance and milk production [ges ]20% from the mean of the previous 9 d (62 cows, case group) and cows that experienced no such episodes over 9 d before and after a fixed day (118 cows, control group). Bacteriological status and somatic cell count (SCC) or California mastitis test scores were assessed on the fixed day in the control group, and on days 0, 1 and 2 in the case group. California mastitis test scores greater than 2 and SCC thresholds of 5×105 cells/ml were used to create two classes of leucocytosis. There was no statistically significant difference between the two groups in frequency distributions of pathogens and their types: in 30% of cows infection was not detected, 33% were infected by major pathogens (95% of which were Staphylococcus aureus), and 53·5% by minor pathogens (80% Micrococcus spp.). Cows in the case group had lower milk production during the 8 d following day 0. Mean electrical resistance was lower in infected cows and particularly in cows infected by Staph. aureus. High leucocytosis was associated with reduced electrical resistance in both groups, and was found in 93% of cows in the case group v. 25% in the control group. The results suggest that falls in electrical resistance of milk and in milk production were not linked to a specific pathogen, and were followed by 3–8 d of reduced milk production and electrical resistance. The study suggests that there are episodic aggravations in mammary health that do not evolve into clinical mastitis but may induce significant losses in milk yield and quality.

scholarly journals Microbiological analysis and sensitivity profile of Staphylococcus spp. in subclinical mastitis of dairy goats

2016 ◽  
Vol 68 (2) ◽  
pp. 336-344
Author(s):  
S.R.S. Salaberry ◽  
A.B.S. Saidenberg ◽  
E. Zuniga ◽  
F.F. Gonsales ◽  
P.A. Melville ◽  
...  
Keyword(s):  
Subclinical Mastitis ◽  
Economic Losses ◽  
Microbiological Analysis ◽  
Dairy Goats ◽  
Milk Samples ◽  
California Mastitis Test ◽  
Resistant Strains ◽  
Staphylococcus Spp ◽  
Sensitivity Profile

Subclinical mastitis in goats causes economic losses and risks to public health. Given the need for research that shows the most isolated staphylococci species and sensibility tests comparing the resistance between coagulase-negative (CNS) and positive Staphylococcus (CPS) goats with subclinical mastitis, the aim of this study was to identify the microorganisms isolated from milk samples of goats with subclinical mastitis, as well as define the staphylococci species and determine the sensitivity profile of Staphylococcus spp. to antimicrobials. To collect samples, tests were performed for mug of black background and California mastitis test (CMT), collecting milk from CMT positive animals. A total of 226 samples from seven herds of dairy goats was collected and forwarded to the laboratory, where they were seeded for the isolation of the microorganism and implementing the antibiotic sensibility test. Of these, 122 samples had bacterial growth and the most isolated staphylococci species were: S. epidermidis (24.55%), S. lugdunensis (15.40%) and S. intermedius (13.64%). Samples showed increased resistance to antimicrobials: penicillin (81.8%), oxacillin (60.0%) and ampicillin (55.5%). Greater sensitivity to: enrofloxacin (99.1%), erythromycin (98.2%), gentamicin (98.2%) and vancomycin (98.2%) were observed. The S. epidermidis showed higher antimicrobial resistance to amoxicillin and penicillin than S. lugdunensis and S. intermedius. Similar resistance in vitro between CNS and CPS was observed to most antimicrobials. It is important to control the overuse of antibiotics to prevent the emergence of resistant strains.

scholarly journals Research on subclinical mastitis and its ethiology in different breeds of cows

2015 ◽  
Vol 31 (3) ◽  
pp. 365-374
Author(s):  
N. Varatanovic ◽  
B. Cengic ◽  
E. Imsirevic
Keyword(s):  
Positive Reaction ◽  
Subclinical Mastitis ◽  
Mixed Infections ◽  
California Mastitis Test ◽  
Holstein Friesian ◽  
Common Causes ◽  
Prevention And Treatment ◽  
Quality Of Milk

Detection of subclinical mastitis in five different breeds of cows were done on the territory of a municipality Kljuc, through all four year seasons by using the California mastitis test, at the level of the udder?s quarter with a certificate of bacteriological findings in order to justify their application in the diagnosis of mastitis. In total, 2150 cows of different breed composition: Simmental 1090, red Holstein 322, Holstein-Friesian 340, montafon 108 and various crossbreeds of 290 in total. After 1978 tested cows, 56.02% of cases had positive reactions to the California mastitis test. The most common positive reaction we found in the milk was in one or two quarters with the intensity of the reaction of one and two plus. The most common causes of mastitis were staphylococci, streptococci and mixed infections. Continuing use of these methods it is possible to timely detect the presence of subclinical mastitis and get satisfactory results in the prevention and treatment of mastitis as well as increasing the quantity and improving the quality of milk.

scholarly journals Risk factors associated with the occurrence of multiresistant Staphylococcus spp. isolated from bovine subclinical mastitis in northern Brazil

2022 ◽  
Vol 43 (2) ◽  
pp. 901-910
Author(s):  
Lilian Bernardina Ferreira ◽  
◽  
Larissa de Freitas Santiago Israel ◽  
Renata Fernandes Rabello ◽  
Guilherme Nunes de Souza ◽  
...  
Keyword(s):  
Risk Factors ◽  
Multidrug Resistance ◽  
Phenotypic Expression ◽  
Bovine Mastitis ◽  
Subclinical Mastitis ◽  
Isolation And Identification ◽  
Phenotypic Profile ◽  
Milk Samples ◽  
California Mastitis Test ◽  
Staphylococcus Spp

Staphylococcus bacteria are often associated with subclinical bovine mastitis. This study aimed to identify multiresistant Staphylococcus spp. associated with subclinical mastitis and the associated risk factors. Twenty-three dairy farms with a history of decrease in milk production, located in the lower Acre region, Brazil, were selected. An epidemiological questionnaire was provided in all farms. All animals were examined using the California Mastitis Test (CMT) and their milk samples were collected for bacterial culture. After isolation and identification, the disk diffusion antimicrobial susceptibility test was performed against nine classes of antimicrobials. Of the 339 cows examined using the CMT, 108 had mastitis. A total of 229 milk samples were collected from individual teats. MALDI-TOF MS found isolates belonging to eight species of Staphylococcus, in 101 of these samples. S. chromogenes (58.4%) demonstrated strongest resistance to the nine classes of antimicrobial active principles. Nineteen isolates with multidrug resistance phenotypic profile were identified. This phenotypic expression indicates wide circulation of resistant genes in this species. The presence of multidrug resistance in Staphylococcus spp. in this study was correlated with lack of water for cleaning the corral, which is a preventive factor, minimizing the transmission and persistence of pathogens in the farms.

scholarly journals Productive performance of Holstein and the crossbreding Kiwi Cross x Holstein cattle

2020 ◽  
pp. 329-339
Author(s):  
Henry David Mogollón García ◽  
David Felipe Nieto Sierra ◽  
Edwin Castro-Rincón
Keyword(s):  
Milk Production ◽  
Production Costs ◽  
Holstein Cattle ◽  
Dairy Production ◽  
Productive Performance ◽  
Total Solids ◽  
Holstein Breed ◽  
Compositional Quality ◽  
Improved Performance

Introduction. During decades, milk production in the Nariño state has depended on the Holstein breed. For this reason, it is necessary to evaluate a model of milk production that allows to decrease production costs and in turn improves the compositional quality of the milk. Objective. This study aimed to compare milk production and compositional quality of Holstein (HO) and the crossbreed between Kiwi Cross (KC) x HO. Materials and methods: Monthly milk production in HO cows (n=30) and the ones from the F1 of the KC x HO cross (n=40), was measured by adjusting the day in milk (DIM) and milk production by third of lactation, fat, protein and total solids. For the period between October 2016 and May 2017, 9,809 dairy production records were analyzed. Results: Maximum production was 25.8 ± 0.53 vs. 23.2 ± 0.53 l day-1 for HO vs. KC cows (p<0.05), respectively. The DIM was not different; however, in days 60, 90, 150, 180, 210 and 240 the HO group produced more milk than the KC group, with a persistence in the lactation peak until day 60, and from that point onwards milk production showed decreasing rates in both groups. Furthermore, the production per third of lactation was higher (p<0.05) in the first third compared to the second and third periods for HO (13.6±0.56 vs. 11.3±0.5723 and 9.9±0.47 l day-1, respectively) and KC (12.8±0.4505 vs. 10.6±0.66 and 9.5 ± 1.69 l day-1, respectively). Fat content was higher (p<0.05) in KC compared to HO in week one, three and five (4±0.07, 4±0.07, 4±0.07 vs. 3.6±0.12, 3.6±0.11, 3.7±0.09 %, respectively); likewise, protein in week one and four was higher in the KC group compared to HO (3.3±0.04 vs. 3.1±0.05 %; p<0.05). Total solids were 13.3±0.17 vs. 12.5±0.23% (p<0.05) for KC and HO cows, respectively in weeks two and five. Conclusion: Milk production in KC and HO was similar; however, KC improved performance in compositional milk quality, increasing the percentages of fat, protein and consequently, total solids.

scholarly journals Evaluation of the quality of Dahi available in Sylhet Metropolitan City

1970 ◽  
Vol 9 (1) ◽  
pp. 79-84 ◽  
Author(s):  
S Dey ◽  
A Iqbal ◽  
A Ara ◽  
MH Rashid
Keyword(s):  
Protein Content ◽  
Viable Count ◽  
Coliform Bacteria ◽  
Microbial Count ◽  
Total Viable Count ◽  
Total Solids ◽  
Metropolitan City ◽  
Significant Difference ◽  
Solids Content

The study was undertaken to evaluate the quality of Dahi available in Sylhet Metropolitan City. Dahi samples from five different Sweetmeat Shops namely Fulkoli, Banaful, Mohanlal, Modhuban and Shad were collected and analyzed. Significant difference in chemical (protein, fat, total solids, ash, acidity and pH) and microbiological status was found among different Dahi samples. Of the five Dahi Brands examined, Fulkoli Brand Dhai had the highest protein content (4.58 ± 0.24) and Shad Brand Dahi had the lowest protein content (4.01 ± 0.17). Fat content was highest in Fulkoli Brand (4.02 ± 0.13) and lowest in Shad Brand (2.10 ± 0.21). The highest total solids content was found in Dahi of Shad Brand (38.00 ± 2.23) and lowest total solids content was found in Banaful Brand Dahi (32.02 ±1.50). Highest Total Viable Count (log cfu/ml.) was recorded in the Dahi of Shad Brand (5.92±0.09) and lowest Total Viable Count was recorded in Mohanlal Brand Dahi (5.84±0.06). Coliform bacteria, Yeast and Mould were present in all the samples. From this experiment, it was found that Fulkoli Brand Dahi was the best in quality . Dahi of Banaful and Mohanlal were in 2nd and 3rd position in quality. Keywords: Fermented milk; Evaluation; Chemical analysis; Microbial count; Total viable count DOI: http://dx.doi.org/10.3329/jbau.v9i1.8748 JBAU 2011; 9(1): 79-83

scholarly journals Isolation, Identification and Resistance Pattern of Microorganisms Associated with Mastitis in Buffalo

2016 ◽  
Vol 30 (1-2) ◽  
pp. 1-5 ◽  
Author(s):  
Ali Azam Talukder ◽  
Hasna Hena Rahman ◽  
SM Jamil Mahmud ◽  
Fahmida Alam ◽  
Shuvra Kanti Dey
Keyword(s):  
Bacterial Species ◽  
Subclinical Mastitis ◽  
Personal Hygiene ◽  
Resistance Pattern ◽  
California Mastitis Test ◽  
Bacillus Spp ◽  
Etiological Agents ◽  
Staphylococcus Spp ◽  
The City ◽  
Mastitis Control

Prevalence of subclinical mastitis along with the etiological agents and their antimicrobial susceptibility were studied around the city of Dhaka, the capital of Bangladesh. Milk samples from 30 apparently healthy buffaloes were subjected to microbiological examinations while subclinical mastitis was diagnosed based on California Mastitis Test (CTM). Seventy percent of the buffaloes examined were positive for subclinical mastitis. A total of 42 isolates of 5 different species were identified. Among them, Staphylococcus spp. was the most frequently identified bacterial species accounting for 50% of all the isolates, followed by E.coli (28.57%), Enterobacter (14.29%), Bacillus spp. (4.76%) and Proteus spp. (2.38%). Highest resistance was found against amoxicillin (21.43%) where chloramphenicol and ciprofloxac in proved to be a more successful antimicrobial agent, resistance against which wasonly 4.76%. Results from the present study suggest that contagious mastitis controlpractice along with good personal hygiene practice is required for mastitis control in the area.Bangladesh J Microbiol, Volume 30, Number 1-2,June-Dec 2013, pp 1-5

scholarly journals Relationship between milk production system and milk traits and somatic cell counts in Brazilian Murrah buffaloes: a multivariate analysis

2019 ◽  
Vol 42 ◽  
pp. e46522
Author(s):  
Severino Benone Paes Barbosa ◽  
Elisa Cristina Modesto ◽  
Fabiana de Araújo Lopes ◽  
Elizabete Cristina da Silva ◽  
Atzel Cândido Acosta Abad
Keyword(s):  
Multivariate Analysis ◽  
Somatic Cell ◽  
Milk Production ◽  
Nutritional Quality ◽  
Production Systems ◽  
Total Variance ◽  
Herd Health ◽  
Total Solids ◽  
Cell Counts

The purpose of this study was to evaluate the monthly milk production and quality of buffaloes from two milk production systems in the Brazilian northeast using the multivariate analysis: principal component analysis (PCA). A total of 2,506 individual milk recordings were performed in two production systems, containing information on milk production (kg day-1), fat, protein, lactose and total solids counts and somatic cell count (SCC). There were positive correlations between the fat content and the contents of total solids (TS) and protein, and of TS and protein. From the PCA, two main components (PC1 and PC2) were identified, explaining 67.71% of the total variation. The fat, protein, lactose and ST level, represented by PC1, explain 46.18% of the total variance, and were an indicator of milk nutritional quality. The CP2, composed of milk production, SCC and production systems, explains 21.53% of the total variance, and was indicative of herd health. PCA results may be useful in dairy buffalo breeding programs, and a reduced number of variables are necessary to assess the nutritional quality of milk and herd health.

scholarly journals Whole genome sequence analysis of Staphylococcus spp. isolated from clinical mastitis and non-clinical fresh cows

2021 ◽  
Author(s):  
Nathália C.C. Silva ◽  
Marjory X. Rodrigues ◽  
Ana C.C.H. Tomazi ◽  
T. Tomazi ◽  
Bruna L. Crippa ◽  
...  
Keyword(s):  
Phylogenetic Tree ◽  
Bovine Milk ◽  
Subclinical Mastitis ◽  
Clinical Mastitis ◽  
Whole Genome Sequence ◽  
Multi Drug Resistance ◽  
Whole Genome ◽  
Intramammary Infections ◽  
Staphylococcus Spp

Abstract Background Staphylococcus spp. are among the most isolated bacteria from cases of clinical and subclinical mastitis in dairy cattle. Also, Staphylococcus is commonly isolated from bovine mammary secretions, not exclusively from intramammary infections. The genus comprises bacteria capable to form biofilm, produce toxins and acquire multi-drug resistance. The aims of this work were to evaluate the genetic virulence and antimicrobial resistance features of Staphylococcus spp. isolated from bovine milk using whole genome sequencing, and build a phylogenetic tree with gene sequences of Staphylococcus spp. isolated from clinical mastitis and non-clinical fresh cows. Results The bacterial collection comprised 29 Staphylococcus strains isolated from clinical mastitis cases (n = 7) and milk samples collected from fresh cows (n = 22). Strains were identified as Staphylococcus aureus (n = 2), Staphylococcus chromogenes (n = 19), and Staphylococcus haemolyticus (n = 8). After sequences quality control, twenty-three strains had good quality of contigs to be included in the further analysis. Conclusions Ninety-four virulence genes were observed, including pvl, icaA, icaD and MMSCRAMS genes. We also detected important resistance genes as blaZ, ant(4), erm(B), fexA, lnu(D), tet(L) and tet(M). The phylogenetic tree related the species as expected and presented four clades.

scholarly journals Kejadian mastitis subklinis pada kambing perah Peranakan Etawa di desa Bangelan kecamatan Wonosari kabupaten Malang

2020 ◽  
Vol 9 (3) ◽  
pp. 60
Author(s):  
Nur Zaini Nanda Mardian ◽  
Soeharsono Soeharsono ◽  
Nenny Harijani ◽  
Budiarto Budiarto ◽  
Herry Agoes Hermadi ◽  
...  
Keyword(s):  
Mammary Gland ◽  
Milk Production ◽  
Clinical Symptoms ◽  
Subclinical Mastitis ◽  
Dairy Goat ◽  
California Mastitis Test

Etawa crossbred goat is one species of goat that is raised for milk production. One of the diseases that often occur in dairy livestock is mastitis, in which there is inflammation of the mammary gland. It is common in goat, that mastitis does not show clinical symptoms (subclinical). This research aims to determine the incidence of subclinical mastitis in Etawa crossbred goats in Bangelan village Wonosari district Malang regency. This research involved 25 respondent farms, which are Etawa crossbred dairy goat farms. In this research, subclinical mastitis cases were directly detected using California Mastitis Test (CMT). The results showed that out of 70 samples collected, 41 (58.6%) samples were positive. These CMT positive goats were from 88% of the respondent farms.

Sign in / Sign up

Export Citation Format

Share Document