A cross-sectional survey of Thoroughbred stud farm management in the North Island of New Zealand

Rogers, Chris W.; Gee, Erica K.; Firth, E. C.

doi:10.1080/00480169.2007.36785

Cited by 38 publications

(29 citation statements)

References 25 publications

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“…The temperate climate of New Zealand means that mares are kept at pasture throughout the year (Rogers et al 2007;Stowers et al 2009). On Farm A mares were moved to individual foaling paddocks (0.1 ha) when the studmaster identified they were close to foaling based on physical signs and service date.…”

Section: Mare Managementmentioning

confidence: 98%

Gestation length and occurrence of daytime foaling of Standardbred mares on two stud farms in New Zealand

Dicken¹,

Gee²,

Rogers³

et al. 2012

New Zealand Veterinary Journal

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Mean gestation length of mares in this study was longer than that previously reported from other countries. Longer gestation length decreases the time available for these mares to get back into foal in the same season. It is important that managers take this into account and ensure optimum conditions for conception; breeding at the first postpartum oestrus may be essential. There were more mares foaling in daylight hours on one stud than has previously been reported. Under these conditions mares should be monitored for foaling during daytime as well as at night.

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Section: Mare Managementmentioning

confidence: 98%

Gestation length and occurrence of daytime foaling of Standardbred mares on two stud farms in New Zealand

Dicken¹,

Gee²,

Rogers³

et al. 2012

New Zealand Veterinary Journal

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“…Based on data collected from three Thoroughbred stud farms in the Manawatu region, foals receive their first anthelmintic anywhere between 4 and 20 weeks of age (average 8 weeks), and receive their second on average eight weeks later (Bishop et al 2014). In two surveys of Thoroughbred stud farms in the North Island anthelmintics were administered to weanlings every 6 or 7 weeks, ranging from 3 to 14 weeks (Rogers et al 2007;Stowers et al 2009). Whilst it is possible that older horses are not dosed as frequently, it is probable that many are.…”

Section: Introductionmentioning

confidence: 99%

Anthelmintic resistance in equine helminth parasites – a growing issue for horse owners and veterinarians in New Zealand?

Scott

Bishop²,

Pomroy

2015

New Zealand Veterinary Journal

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There is growing concern that given the high frequency with which anthelmintics are being administered to many horses, anthelmintic resistance amongst equine helminth populations will be an increasing problem, rendering many of the currently available products unusable with little prospect of new products becoming available, at least in the near future. Worldwide, much reliance has been placed on the macrocyclic lactone (ML) group of anthelmintics, but resistance has been reported to these products as well as to the two other major anthelmintic classes used in this species, the benzimidazoles (BZ) and the tetrahydropyrimidines (e.g. pyrantel). In New Zealand, resistance has been reported to the ML and BZ groups, but not yet to pyrantel. As an alternative to interval-based anthelmintic regimens, the highly overdispersed nature of parasite populations in horses can be utilised to decide whether treatment is required, based on whether or not animals exceed a predetermined level of shedding of parasite eggs. If well managed, such a targeted and selective approach can be utilised to eliminate the majority of egg output whilst still providing a refuge for susceptible parasites to persist. Such a system would require that an adequate standard of monitoring be in place and cognisance needs to be taken of parasites or their lifecycle stages that cannot be diagnosed by routine methods. At the same time, using anthelmintics with high levels of efficacy, avoiding practices such as under-dosing, as well as utilising non-chemical means of parasite control when possible, e.g. regular removal of faeces from pasture, should all be considered. Combinations of anthelmintics, specifically of anthelmintics that target the same or a similar spectrum of parasite species, should play an important role in parasite control in horses. As well as providing arguably the highest levels of efficacy, combinations may also slow the rate at which anthelmintic resistance develops.

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“…In New Zealand, equine pastures are predominantly comprised of a perennial ryegrass and white clover mix, with lesser quantities of other grasses and legumes, and many horses are kept or reared on pasture all year round [26], [27], [28]. The composition of microbiota in the faeces of New Zealand pasture-fed horses, or the effects of an abrupt dietary change from forage-grain diets to pasture on the hindgut or faecal microbiota, are currently unknown.…”

Section: Introductionmentioning

confidence: 99%

Faecal Microbiota of Forage-Fed Horses in New Zealand and the Population Dynamics of Microbial Communities following Dietary Change

et al. 2014

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The effects of abrupt dietary transition on the faecal microbiota of forage-fed horses over a 3-week period were investigated. Yearling Thoroughbred fillies reared as a cohort were exclusively fed on either an ensiled conserved forage-grain diet (“Group A”; n = 6) or pasture (“Group B”; n = 6) for three weeks prior to the study. After the Day 0 faecal samples were collected, horses of Group A were abruptly transitioned to pasture. Both groups continued to graze similar pasture for three weeks, with faecal samples collected at 4-day intervals. DNA was isolated from the faeces and microbial 16S and 18S rRNA gene amplicons were generated and analysed by pyrosequencing. The faecal bacterial communities of both groups of horses were highly diverse (Simpson’s index of diversity >0.8), with differences between the two groups on Day 0 (P<0.017 adjusted for multiple comparisons). There were differences between Groups A and B in the relative abundances of four genera, BF311 (family Bacteroidaceae; P = 0.003), CF231 (family Paraprevotellaceae; P = 0.004), and currently unclassified members within the order Clostridiales (P = 0.003) and within the family Lachnospiraceae (P = 0.006). The bacterial community of Group A horses became similar to Group B within four days of feeding on pasture, whereas the structure of the archaeal community remained constant pre- and post-dietary change. The community structure of the faecal microbiota (bacteria, archaea and ciliate protozoa) of pasture-fed horses was also identified. The initial differences observed appeared to be linked to recent dietary history, with the bacterial community of the forage-fed horses responding rapidly to abrupt dietary change.

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A cross-sectional survey of Thoroughbred stud farm management in the North Island of New Zealand

Cited by 38 publications

References 25 publications

Gestation length and occurrence of daytime foaling of Standardbred mares on two stud farms in New Zealand

Gestation length and occurrence of daytime foaling of Standardbred mares on two stud farms in New Zealand

Anthelmintic resistance in equine helminth parasites – a growing issue for horse owners and veterinarians in New Zealand?

Faecal Microbiota of Forage-Fed Horses in New Zealand and the Population Dynamics of Microbial Communities following Dietary Change

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