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Bacterial flora and risk of infection of the ovine teat duct and mammary gland throughout lactation
(2007)
We collected samples of teat duct material and mammary secretion from ewes in three farms (flock A, polyparous n = 7; flock B, polyparous n = 6, primiparous n = 4; flock C, polyparous n = 4): 14 samples immediately after ...
Teat disorders predispose ewes to clinical mastitis after challenge with Mannheimia haemolytica
(2006)
In order to study the effects of sheep teat disorders on the protection of the mammary gland, we used a Mannheimia haemolytica isolate, which did not cause clinical mastitis when deposited into intact teats. In the first ...
Description and validation of a novel technique to study the bacterial flora of the teat duct of ewes
(2006)
We describe a new technique that may be used for studying the bacterial flora of the teat duct in live ewes, and we present evidence regarding its accuracy, safety and repeatability. A sterile, plastic, 20 G catheter is ...
Health management of ewes during pregnancy
(2012)
The objectives of health management of ewes during pregnancy are as follows: (i) successful completion of pregnancy at term, (ii) birth of healthy and viable lambs, with optimal birth and potential weaning bodyweight, (iii) ...
Differences in susceptibility to Mannheimia haemolytica-associated mastitis between two breeds of dairy sheep
(2007)
We used a Mannheimia haemolytica isolate to study differences in susceptibility to experimental mastitis between two breeds of dairy sheep. The isolate was deposited into the teat duct of Karagouniko (K, n=8) or Frisarta ...
Effects of experimental challenge of ewes with Mannheimia haemolytica on subsequent milk composition
(2008)
The objective was to describe the physicochemical changes during the early phase of subclinical mastitis and to associate them with pathological findings. A Mannheimia haemolytica strain was deposited into one teat duct ...
Presence of sub-epithelial lymphoid tissues in the teat of ewe-lambs and adult ewes
(2007)
In the first part of the study, 24 clinically healthy teats from non-lactating ewe-lambs were examined bacteriologically and histologically. No bacteria were isolated from any of these teats; lymphocytes were observed in ...
Naturally occurring subclinical ovine mastitis associated with Listeria monocytogenes
(1998)
Mammary infection with and faecal excretion of Listeria monocytogenes and somatic cell counts in milk were monitored in 98 ewes in a population of 335 in two flocks. From these 98 ewes, three samples were obtained throughout ...
Incidence risk and aetiology of mammary abnormalities in dry ewes in 10 flocks in Southern Greece
(1998)
In a field investigation of 10 flocks in Southern Greece, 3367 dairy ewes were examined twice, in order to estimate the incidence risk and the aetiology of mammary abnormalities during the dry-period. Abnormal secretion, ...