Effects of machine milking on udder health in dairy ewes

2020 ◽  
Vol 188 ◽  
pp. 106096
Author(s):  
Gema Romero ◽  
Cristòfol Peris ◽  
George C. Fthenakis ◽  
José Ramón Diaz
Keyword(s):  
Udder Health ◽  
Machine Milking ◽  
Dairy Ewes

scholarly journals Influence of Vacuum Level and Overmilking on Udder Health and Teat Thickness Changes in Dairy Ewes

2003 ◽  
Vol 86 (12) ◽  
pp. 3891-3898 ◽  
Author(s):  
C. Peris ◽  
J.R. Díaz ◽  
S. Balasch ◽  
M.C. Beltrán ◽  
M.P. Molina ◽  
...  
Keyword(s):  
Vacuum Level ◽  
Udder Health ◽  
Dairy Ewes

532. The relationship between mastitis and the method of stripping after machine milking

1954 ◽  
Vol 21 (1) ◽  
pp. 10-18 ◽  
Author(s):  
F. K. Neave ◽  
T. M. Higgs ◽  
D. Simpkin ◽  
J. Oliver ◽  
F. H. Dodd
Keyword(s):  
Total Yield ◽  
Udder Health ◽  
Machine Milking ◽  
Milking Machine ◽  
The Relationship ◽  
Partial Vacuum

At the end of normal machine milking some milk, which cannot be removed unaided even by the most efficient milking machine, remains in the udder sinus. This milk, often some 10% of the total yield depending upon the age of the cow, udder shape, partial vacuum of the milking machine and teat-cup liner design, was formerly most frequently removed by hand. As a result of advice and encouragement farmers are rapidly changing to manipulation of the teat-cups, known as machine stripping. This practice has renewed interestin the old controversy about the effect of the method of stripping on udder health.

Use of milk amyloid A in the diagnosis of subclinical mastitis in dairy ewes

2013 ◽  
Vol 80 (4) ◽  
pp. 496-502 ◽  
Author(s):  
Arianna Miglio ◽  
Livia Moscati ◽  
Gabriele Fruganti ◽  
Michela Pela ◽  
Eleonora Scoccia ◽  
...  
Keyword(s):  
Health Status ◽  
Subclinical Mastitis ◽  
Farm Income ◽  
Control Group ◽  
Bacteriological Examination ◽  
Udder Health ◽  
Elisa Kit ◽  
Amyloid A ◽  
Milk Samples ◽  
Dairy Ewes

Subclinical mastitis (SM) is one of the most important diseases affecting dairy ewes worldwide, with negative impact on the animal health, farm income and public health. Animals with SM often remain untreated because the disease may not be revealed. Increase in somatic cell count (SCC) and positive bacteriology for mastitis pathogens in milk samples are indicative of SM but the evidence of only one of these alterations must suggest an uncertain SM (UM). UM is defined when positive bacteriological examination (Latent-SM) or SCC>500 000 cells/ml (non-specific-SM) are detected in milk. Nevertheless, SCC and bacteriological examination are expensive, time consuming and are not yet in use at the farm level in dairy ewes. Recently, a sensitive acute phase protein, amyloid A, displaying multiple isoforms in plasma and different body fluids including mammary secretion (milk amyloid A-MAA), has been investigated as a marker of mastitis in cows and, in a few studies, in sheep. The aim of this trial was to compare the concentration of MAA of single udder-halves in ewes with healthy udder-halves (HU-control group) and naturally occurring subclinical mastitis, both confirmed (SM group) and uncertain (UM groups: Latent-SM and non-specific-SM), for monitoring udder health. The reliability of a specific ELISA kit for the measurement of MAA was also tested. During a 3-month trial period, 153 udder halves were assigned to the experimental groups based on their health status: 25 with SM, 40 with UM (11 with latent-SM and 29 with non-specific-SM) and 88 HU. SCC and bacteriological analysis were performed to establish the control and subclinical mastitis groups. MAA concentrations in milk samples were measured using a specific commercially milk ELISA kit. The data were submitted to statistical analysis. Significant (P<0·05) differences among the groups SM, non-specific-SM and HU were detected with the SM having the highest level and HU the lowest. MAA concentration is affected by the udder health status and is a useful indicator of subclinical mastitis and increased SCC in sheep.

Relationship between Welfare and Udder Health Indicators in Dairy Ewes

2006 ◽  
Vol 30 (1) ◽  
pp. 83-94 ◽  
Author(s):  
M. Caroprese ◽  
M. Albenzio ◽  
A. Muscio ◽  
A. Sevi
Keyword(s):  
Health Indicators ◽  
Udder Health ◽  
Dairy Ewes

scholarly journals Yield and quality of milk and udder health in Martina Franca ass: effects of daily interval and time of machine milking

2009 ◽  
Vol 8 (sup2) ◽  
pp. 697-699 ◽  
Author(s):  
Angela Gabriella D’Alessandro ◽  
Rosanna De Petro ◽  
Salvatore Claps ◽  
Michele Pizzillo ◽  
Giovanni Martemucci
Keyword(s):  
Udder Health ◽  
Machine Milking ◽  
Yield And Quality ◽  
Daily Interval ◽  
Quality Of Milk

Risk factors of teat-end hyperkeratosis and its association with udder health in dairy ewes

2018 ◽  
Vol 85 (1) ◽  
pp. 44-49 ◽  
Author(s):  
Sotiria Vouraki ◽  
Athanasios I. Gelasakis ◽  
Ian J. Rose ◽  
Georgios Arsenos
Keyword(s):  
Health Problems ◽  
Dairy Sheep ◽  
Vacuum Level ◽  
Udder Health ◽  
Dairy Ewes ◽  
California Mastitis Test ◽  
Pulsation Rate ◽  
Level Increase ◽  
High Prevalence ◽  
On Farm

This study tested the hypotheses that machine milked dairy sheep have a high prevalence of teat-end hyperkeratosis (TEH), which contributes to udder health problems. A random sample of 1360 milking ewes from 28 dairy sheep farms was monitored. Milking procedures, milking parlour characteristics and maintenance were recorded during a designated on farm audit; records were obtained through observations and interviews with farmers. Number of ewes/milker, ewes/milking unit and milkings/milking unit were calculated. Vacuum level, pulsation rate and ratio were measured. Four combinations of vacuum level and pulsation rate were defined; <40 kPa and <150 cycles/min (VP1), <40 kPa and ≥150 cycles/min (VP2), ≥40 kPa and <150 cycles/min (VP3), ≥40 kPa and ≥150 cycles/min (VP4). California Mastitis Test (CMT; scores 0–4) was done on all ewes. Then the udder of each ewe was assessed for TEH (scores 1–4) and ewes were assigned into three groups according to TEH severity (no or mild, medium and severe TEH). Severe TEH (scores 3 and 4) prevalence at teat-level was ca. 13%. TEH severity was associated with the combination of vacuum level and pulsation rate; ewes milked with VP4 combination were more likely to have a one-level increase on TEH severity compared to ewes milked with VP2 and VP3 combinations. More ewes/milker and less ewes/milking unit increased the likelihood of a one-level increase on TEH severity. Finally, ewes with severe TEH were more likely to have a one-level increase on CMT score. Therefore, our hypotheses that TEH is prevalent in dairy ewes and contributes to udder health problems were confirmed. Additionally, farmers can reduce TEH prevalence by optimising the way they milk and their milking parlour.

scholarly journals Influence of Pulsation Rate on Udder Health and Teat Thickness Changes in Dairy Ewes

2003 ◽  
Vol 86 (2) ◽  
pp. 530-537 ◽  
Author(s):  
C. Peris ◽  
J.R. Díaz ◽  
C. Segura ◽  
A. Martí ◽  
N. Fernández
Keyword(s):  
Udder Health ◽  
Dairy Ewes ◽  
Pulsation Rate

Phenotypic and genetic relationships between udder morphology and udder health in dairy ewes

2010 ◽  
Vol 88 (2-3) ◽  
pp. 77-83 ◽  
Author(s):  
Sara Casu ◽  
S. Sechi ◽  
S.L. Salaris ◽  
A. Carta
Keyword(s):  
Genetic Relationships ◽  
Udder Health ◽  
Dairy Ewes

An evaluation of pure-bred and cross-bred dairy ewes in a commercial sheep milking operation

1992 ◽  
Vol 1992 ◽  
pp. 176-176
Author(s):  
N J Brown ◽  
P R English ◽  
J A Roden ◽  
G Burgess
Keyword(s):  
Milk Yield ◽  
White Clover ◽  
Milk Fat ◽  
Alternative Route ◽  
Commercial Unit ◽  
Machine Milking ◽  
Dairy Ewes ◽  
Sheep Milk ◽  
And Performance ◽  
The Uk

Sheep milk and its products are regaining popularity with approximately 15,000 sheep currently being milked in the UK. Extreme dairy type ewes such as the Friesland are expensive compared to commercial genotypes and the crossing of dairy type sires with commercial ewes to produce cross-bred daughters for milking offers an alternative route of entry into milking sheep. An investigation was carried out on a commercial unit in Aberdeenshire milking around 150 ewes to assess the relative suitability and performance of pure-bred and cross-bred dairy ewes under commercial conditions.The study involved first lactation ewes, 5 Friesland x Scotch Halfbreds being compared with 5 pure-bred Frieslands. The ewes lambed at 15 months of age between 20 and 27 May and the ewes were grazed on ryegrass/white clover swards. Ewes nursed their lambs for four weeks after lambing and machine milking started on day 29 of lactation. Milk yield was recorded weekly while milk fat and protein were measured at two weekly intervals.

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