Search Results - "Ridler, A. L."

Identification of risk factors for ewe mortality during the pregnancy and lambing period in extensively managed flocks by Flay, K J, Chen, A S, Yang, D A, Kenyon, P R, Ridler, A L

“…Ewe mortality during pregnancy and lambing is an issue for sheep producers globally, resulting in reduced productivity and profitability, compromised ewe…”
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Deaths due to suspected hypothermia in sheep and alpacas on a Manawatū farm in New Zealand in mid-summer by Ridler, A L, Gulliver, E L, Castillo-Alcala, F

“…In mid-summer (February), 42 of a flock of 68 ram hoggets (approximately 5 months of age) and two of a group of 14 alpacas on a farm in the Manawatū region of…”
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Reduced anthelmintic use on 13 New Zealand sheep farms: farmer motivations and practical implementation by Ridler, A L, Hytten, K, Gray, D I, Reid, J I

“…To describe the personal drivers, sources of information and gastro-intestinal parasite control methods used by a group of New Zealand sheep farmers identified…”
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Familial episodic ataxia in lambs is potentially associated with a mutation in the fibroblast growth factor 14 (FGF14) gene by Dittmer, K E, Jolly, R D, Mayhew, I G, Ridler, A L, Chernyavtseva, A, Garrick, D J, Blair, H T

“…Familial episodic ataxia of lambs is a congenital transient autosomal dominant disorder of newborn lambs, with varying expressivity. Affected lambs show…”
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Factors associated with fetal losses in ewe lambs on a New Zealand sheep farm by Ridler, AL, Vallee, E, Corner, RA, Kenyon, PR, Heuer, C

“…CASE HISTORY: As part of a production study of ewe lambs on a large farm in the Waikato region of New Zealand in 2011, pregnancy diagnosis was undertaken twice…”
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Ewe wastage in commercial sheep flocks: a review of current knowledge by Flay, KJ, Ridler, AL, Corner-Thomas, RA, Kenyon, PR

“…Ewe wastage encompasses ewes that do not reach the end of their potential productive lives and is the combination of premature culling and on-farm mortality…”
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Production responses and cost-benefit of long-acting pre-lambing anthelmintic treatment of yearling ewes in two commercial flocks in New Zealand by Ridler, AL, Miller, CM, Leathwick, DM, Ganesh, S, Garland, CB, Bruce, HM

“…AIMS: To investigate the production responses and cost-benefit of administering a controlled-release anthelmintic capsule (CRC) to pregnant yearling ewes prior…”
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Longitudinal study of the effect of sporidesmin toxicity on lamb production and serum biochemistry in a flock of 46 Romney ewes using a standardised measure of liver damage by Lawrence, KE, Flay, KJ, Munday, JS, Aberdein, D, Thomson, NA, Vignes, M, Ridler, AL

“…To evaluate the effect of sporidesmin toxicity on production outcomes and serum biochemistry analytes in mixed age Romney ewes, using a standardised measure of…”
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Investigating associations between lamb survival to weaning and dam udder and teat scores by Griffiths, KJ, Ridler, AL, Compton, CWR, Corner-Thomas, RA, Kenyon, PR

“…Aims: To examine a range of udder and teat traits in Romney ewes and to describe the frequency with which different scores occur, and to investigate…”
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Investigation of fetal loss in ewe lambs in relation to liveweight changes and progesterone concentrations in early to mid gestation by Ridler, AL, Corner-Thomas, RA, Kenyon, PR, Griffiths, KJ

“…AIMS: To investigate associations between changes in liveweight and fetal loss in ewe lambs and to determine whether fetal loss was associated with…”
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Associations between lamb growth to weaning and dam udder and teat scores by Griffiths, KJ, Ridler, AL, Compton, CWR, Corner-Thomas, RA, Kenyon, PR

“…Aims: To investigate associations between lamb growth to weaning and dam udder and teat scores measured at pre-mating, pre-lambing, docking and weaning…”
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Assessment and simulation of the implementation of brucellosis control programme in an endemic area of the Middle East by HEGAZY, Y. M., RIDLER, A. L., GUITIAN, F. J.

“…Brucellosis is an important zoonosis in Middle Eastern countries. In this study we assessed the extent of the application of planned official brucellosis…”
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Sources of Streptococcus dysgalactiae in English and Welsh sheep flocks affected by infectious arthritis (joint ill) by Rutherford, S. J., Rycroft, A. N., Ridler, A. L.

“…In order to investigate sheep sources of Streptococcus dysgalactiae in flocks affected with joint ill, 10 sheep flocks in England and Wales with…”
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Assessment of occupational exposure to leptospirosis in a sheep-only abattoir by DORJEE, S., HEUER, C., JACKSON, R., WEST, D. M., COLLINS-EMERSON, J. M., MIDWINTER, A. C., RIDLER, A. L.

“…This study estimated the frequency of exposure of meat workers to carcasses infected with Leptospira serovars Hardjobovis or Pomona in a sheep-only abattoir in…”
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Associations between liveweight, body condition score and previous reproductive outcomes, and the risk of ewes bred at 18-months of age being dry at docking by Griffiths, KJ, Ridler, AL, Heuer, C, Corner-Thomas, RA, Kenyon, PR

“…Firstly, to investigate associations between liveweight and body condition score (BCS) of two-tooth ewes (18-months-old at breeding) at breeding, pregnancy…”
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Pathology of Brucella ovis infection in red deer stags (Cervus elaphus) by Ridler, AL, West, DM, Collett, MG

“…AIM: To describe the pathology of the reproductive tract of red deer stags with active Brucella ovis infection and in stags in which B. ovis infection had…”
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Seroconversion and semen shedding in rams experimentally infected with Brucella ovis by Ridler, AL, Smith, SL, West, DM

“…AIM: To determine the time taken for rams to develop antibodies to Brucella ovis in serum, shed B. ovis in semen and develop lesions of epididymitis following…”
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Disease threats to sheep associated with intensification of pastoral farming by Ridler, AL

“…Sheep farming in New Zealand is based on an outdoor grazing system with various systems of grazing management utilised depending on the type of farm and the…”
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Prevalence of pathogenic Leptospira spp. in sheep in a sheep-only abattoir in New Zealand by Dorjee, S, Heuer, C, Jackson, R, West, DM, Collins-Emerson, JM, Midwinter, AC, Ridler, AL

“…AIM: To determine the prevalence of the two most commonly diagnosed pathogenic Leptospira spp. serovars, Hardjobovis and Pomona, in sheep in a sheep-only…”
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Demonstration of polymorphism among Brucella ovis field isolates by pulsed-field gel electrophoresis by Ridler, A.L., Leyland, M.J., Fenwick, S.G., West, D.M.

“…Brucella ovis is recognized worldwide as an important pathogen of sheep, and has also been identified in farmed deer in New Zealand. Previously, only one…”
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