Parasite control in pasture-grazed dairy cattle: are we at the edge of a precipice?

2015 ◽  
Vol 55 (7) ◽  
pp. 916 ◽  
Author(s):  
I. A. Sutherland ◽  
S. L. Bullen
Keyword(s):  
New Zealand ◽  
Dairy Cattle ◽  
Production Systems ◽  
Anthelmintic Resistance ◽  
Dairy Farms ◽  
Gastrointestinal Nematode ◽  
Parasite Control ◽  
Young Stock ◽  
Development Of Resistance ◽  
The Face

Gastrointestinal nematode (GIN) parasites are one of the most production-limiting infections of pasture-based dairy cattle in Australasia. Intensification of dairy production systems in both countries has meant that farmers have come to rely heavily on anthelmintic drenches to control GIN parasitism. However, anthelmintic resistance is now widespread in New Zealand, particularly to the market-leading macrocyclic-lactones. Less work has been conducted on anthelmintic resistance in Australia but preliminary results of a study currently underway suggests that there are high levels of resistance on Victorian dairy farms. The identification and mitigation of risk factors for the development of resistance is crucial for long-term sustainability of control. These include the use of drenches with variable efficacy – particularly pour-on and injectable formulations. New Zealand studies suggest that this may be as a result of active not reaching parasites within the gut lumen as effectively as oral formulations. Also, the raising of young stock as monocultures is a risk factor for the development of resistance as it significantly reduces the numbers of unselected (and presumably susceptible) parasites on pasture. These risks can be mitigated: using effective drenches removes more resistant parasites. This often means the use of combination products containing more than one anthelmintic class. Combination products are more effective in the face of existing resistance, and can slow the development of resistance. Also, ensuring an adequate level of unselected parasites on pasture for ingestion by young stock will delay the development of resistance. While there are differences between dairying systems, both countries are likely to benefit from more active and collaborative research efforts to improving parasite control practices on dairy farms in their respective countries.

scholarly journals Current Status for Gastrointestinal Nematode Diagnosis in Small Ruminants: Where Are We and Where Are We Going?

2014 ◽  
Vol 2014 ◽  
pp. 1-12 ◽  
Author(s):  
Sarah Jane Margaret Preston ◽  
Mark Sandeman ◽  
Jorge Gonzalez ◽  
David Piedrafita
Keyword(s):  
Production Systems ◽  
Anthelmintic Resistance ◽  
Small Ruminants ◽  
Gastrointestinal Nematode ◽  
Current Status ◽  
Treatment Programs ◽  
Effective Control ◽  
Parasite Control ◽  
Control Programs ◽  
Selection Of

Gastrointestinal nematode (GIN) parasites pose a significant economic burden particularly in small ruminant production systems. Anthelmintic resistance is a serious concern to the effective control of GIN parasites and has fuelled the focus to design and promote sustainable control of practices of parasite control. Many facets of sustainable GIN parasite control programs rely on the ability to diagnose infection both qualitatively and quantitatively. Diagnostics are required to determine anthelmintic efficacies, for targeted treatment programs and selection of animals for parasite resistant breeding. This review describes much of the research investigated to date to improve the current diagnostic for the above practices which is based on counting the number of parasite eggs in faeces.

Commercial equine production in New Zealand. 2. Growth and development of the equine athlete

2020 ◽  
Vol 60 (18) ◽  
pp. 2155
Author(s):  
Chris W. Rogers ◽  
Erica K. Gee ◽  
Charlotte F. Bolwell ◽  
Sarah M. Rosanowski
Keyword(s):  
New Zealand ◽  
Musculoskeletal System ◽  
Growth And Development ◽  
Production Systems ◽  
Energy Requirement ◽  
Temperate Climate ◽  
Free Access ◽  
Young Stock ◽  
Future Challenges ◽  
Commercial Farms

During the past 20 years, there has been a contraction in the New Zealand Thoroughbred industry and, to a lesser extent, within the Standardbred industry. These changes have seen an increasing proportion of the market being associated with fewer larger commercial farms. Many of these farms manage their own mares, and the mares and foals of several clients. This, in turn, has increased the similarity of the management of breeding and young stock within New Zealand. The temperate climate allows the majority of the management of breeding and young stock to be pasture based. The predominant pasture is ryegrass–clover mix that has been demonstrated to provide adequate nutrition for growth and development. The temperate climate also permits management of horses at pasture year round, which is proposed to stimulate development of the musculoskeletal system. Apart from a brief period during weaning, most young stock remain at pasture from birth until the start of yearling preparation. Free access to pasture exercise provides the opportunity to stimulate the musculoskeletal system for the future challenges as a racehorse. The export focus of many of the equine industries heavily influences the management decisions. Despite the availability of good-quality pasture post-weaning, many foals receive up to 50% of the daily dietary energy requirement as concentrates, possibly reflecting the emphasis on early sales as yearlings and the drive to optimise growth. The observations of drench resistance of common internal parasites presents an emerging problem for pasture-based production systems. A large proportion of the Thoroughbred foal crop is exported as yearlings or ready to run 2-year-olds. There is an increasing trend for Standardbreds to be sold as yearlings and this has resulted in changes in the management of Standardbred young stock.

The Extended Use Of The Milk Recording System In New Zealand

1946 ◽  
Vol 1946 (02) ◽  
pp. 20-25
Author(s):  
Arthur Ward
Keyword(s):  
New Zealand ◽  
Dairy Farms ◽  
Farm Management ◽  
Recording System ◽  
Soil Types ◽  
Dairy Herds ◽  
List Type ◽  
Young Stock ◽  
Improvement Plan ◽  
On Farm

In New Zealand, herd recording, since the introduction of the Herd Improvement Plan in 1938, has been governed in policy by the Herd Recording Council in Wellington. In 1938 the decision was taken to extend the scope of the milk recording movement so that milk records could be used for:— (1) improvement through breeding; (2) studies on farm management, including the prevention of disease in dairy herds; and (3) studies on problems of nutrition on dairy farms, em-bracing not only the feeding of dairy cattle and young stock, but also such matters as the influence of soil types, pasture species, etc. There are six Herd Improvement Associations and a representative of each Association is elected annually to the Herd Recording Council with full voting power.

scholarly journals Impacts of Nutrition and Feeding Programs on Farmers’ Management Decisions Affecting the Success of Dairy Farms with Culture Breed Cattle

2016 ◽  
Vol 4 (2) ◽  
pp. 66 ◽  
Author(s):  
Yavuz Topcu ◽  
Mehmet Toparlak ◽  
Muhlis Macit
Keyword(s):  
Dairy Cattle ◽  
Production Systems ◽  
Integrated Management ◽  
Management Strategies ◽  
Principal Component ◽  
Dairy Farms ◽  
Lactation Period ◽  
Feeding Programs ◽  
Planning Culture ◽  
The Individual

The aim of the study is to evaluate all the factors determining the milk production and yield decisions with regard to the nutrition and feeding programs affecting the integrated management strategies on the success of the dairy farms with culture breed cattle under the pasture-based and indoor barn-based production systems. For these aims, data obtained from the individual interviews conducted at the dairy farms with 100 culture breed cattle were used for Principal Component and Multiple Regression Analyses. The results of the study highlighted that while there were linear positive relationships among liquid assets of farms value, concentrate feed and fodder intake of dairy cattle, milk sale price, forage crop support, additional feeding and their types at pasture and milk yields per dairy cattle at the dairy farms; there were inverse relationships among hay intake of dairy cattle, lactation period, pasture planning, culture breed cattle support and those. The farmers could increase the successes of the dairy farms by increasing the technical and economic effectiveness under the integrated management pattern approaches at those with culture breed cattle.

scholarly journals Animal Welfare Assessment: Can We Develop a Practical, Time-Limited Assessment Protocol for Pasture-Based Dairy Cows in New Zealand?

Animals ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1918
Author(s):  
Sujan Sapkota ◽  
Richard Laven ◽  
Kristina Müller ◽  
Nikki Kells
Keyword(s):  
New Zealand ◽  
Dairy Cattle ◽  
Dairy Cows ◽  
Dairy Herd ◽  
Dairy Farms ◽  
Welfare Assessment ◽  
Assessment Protocol ◽  
Specific Protocol ◽  
Almost All ◽  
On Farm

Despite being a leading producer and exporter of dairy products, New Zealand has no industry-recognised welfare assessment protocol. A New Zealand-specific protocol is essential, as almost all dairy farms in New Zealand are pasture-based and housing is rarely used. Therefore, protocols developed for intensive cows are not suitable. The aim of this study was to develop a simple yet practical welfare assessment protocol that could be used to assess the welfare of a dairy herd during one visit timed to occur around milking. Six welfare assessment protocols and four studies of dairy cattle welfare assessments that had some focus on dairy cattle welfare at pasture were used, along with the New Zealand Dairy Cattle Code of Welfare, to identify potential assessments for inclusion in the protocol. Eighty-four potential assessments (20 record-based and 64 that needed assessing on-farm) were identified by this process of welfare assessments. After screening to exclude on-farm assessments that were not relevant, that had only limited practical application in pasture-based dairy cows or that required more time than available, 28 on-farm assessments remained, which were put together with the 20 record-based assessments and were tested for feasibility, practicality and time on two pasture-based dairy farms. Assessments were then identified as suitable, suitable after modification or not feasible. Suitable and modified assessments were then included in the final protocol alongside additional measures specific to New Zealand dairy farms. The final protocol included 24 on-farm assessments and eight record-based assessments. Further testing of these 32 assessments is needed on more dairy farms across New Zealand before the protocol can be used to routinely assess the welfare of dairy cows in New Zealand.

A comparison of the performance of Holstein-Friesian and Norwegian Red dairy cattle on commercial dairy farms over five lactations

2009 ◽  
Vol 2009 ◽  
pp. 60-60
Author(s):  
C P Ferris ◽  
D C Patterson ◽  
D J Kilpatrick
Keyword(s):  
Dairy Cattle ◽  
Milk Production ◽  
Dairy Cow ◽  
Production Systems ◽  
Dairy Farms ◽  
Selection Programme ◽  
Holstein Friesian ◽  
Breeding Programmes ◽  
Low Incidence

Norway has adopted a multi-trait selection programme within its Norwegian Red (NR) dairy cow population for over thirty years, in contrast to breeding programmes with the Holstein-Friesian (HF) breed, which have, until recently, focused primarily on milk production. As a result, evidence from Norway suggests a dairy cow population with high levels of fertility and a relatively low incidence of mastitis. Consequently, there is considerable international interest in the NR breed as a means of overcoming some of the fertility, health and longevity problems that currently exist within the HF breed. To examine the potential of the NR breed, an experiment was established on 19 commercial dairy farms to compare the production, fertility and longevity of animals of the NR and HF breed across a range of production systems.

Automatic Milking Systems: an option to address the labour shortage on New Zealand dairy farms?

2002 ◽  
pp. 39-43
Author(s):  
J.G. Jago ◽  
M.W. Woolford
Keyword(s):  
New Zealand ◽  
Dairy Industry ◽  
Research Programme ◽  
Working Hours ◽  
Dairy Farms ◽  
Small Scale ◽  
Labour Shortage ◽  
Commercial Farms ◽  
Grazing Systems ◽  
Automatic Milking Systems

There is a growing shortage of labour within the dairy industry. To address this the industry needs to attract more people and/or reduce the labour requirements on dairy farms. Current milk harvesting techniques contribute to both the labour requirements and the current labour shortage within the industry as the process is labour-intensive and necessitates long and unsociable working hours. Automated milking systems (AMS) have been in operation, albeit on a small scale, on commercial farms in Europe for a decade and may have the potential to address labour issues within the New Zealand dairy industry. A research programme has been established (The Greenfield Project) which aims to determine the feasibility of automated milking under New Zealand dairying conditions. A Fullwoods MERLIN AMS has been installed on a protoype farmlet and is successfully milking a small herd of 41 cows. Progress from the prototype Greenfields system offers considerable potential for implementing AMS in extensive grazing systems. Keywords: automated milking systems, dairy cattle, grazing, labour

An evaluation of a strategic de-stocking regime for dairying to improve nitrogen efficiency and reduce nitrate leaching from dairy farms in nitrate-sensitive areas

2000 ◽  
pp. 105-110
Author(s):  
Cecile De Klein ◽  
Jim Paton ◽  
Stewart Ledgard
Keyword(s):  
New Zealand ◽  
Nitrate Leaching ◽  
Management Practice ◽  
Field Measurements ◽  
Dairy Farms ◽  
Nitrogen Efficiency ◽  
Management Tool ◽  
Pasture Production ◽  
Leaching Losses ◽  
Sensitive Areas

Strategic de-stocking in winter is a common management practice on dairy farms in Southland, New Zealand, to protect the soil against pugging damage. This paper examines whether this practice can also be used to reduce nitrate leaching losses. Model analyses and field measurements were used to estimate nitrate leaching losses and pasture production under two strategic de-stocking regimes: 3 months off-farm or 5 months on a feed pad with effluent collected and applied back to the land. The model analyses, based on the results of a long-term farmlet study under conventional grazing and on information for an average New Zealand farm, suggested that the 3- or 5-month de-stocking could reduce nitrate leaching losses by about 20% or 35-50%, respectively compared to a conventional grazing system. Field measurements on the Taieri Plain in Otago support these findings, although the results to date are confounded by drought conditions during the 1998 and 1999 seasons. The average nitrate concentration of the drainage water of a 5-month strategic de-stocking treatment was about 60% lower than under conventional grazing. Pasture production of the 5-month strategic de-stocking regime with effluent return was estimated based on data for apparent N efficiency of excreta patches versus uniformlyspread farm dairy effluent N. The results suggested that a strategic de-stocking regime could increase pasture production by about 2 to 8%. A cost/ benefit analysis of the 5-month de-stocking system using a feed pad, comparing additional capital and operational costs with additional income from a 5% increase in DM production, show a positive return on capital for an average New Zealand dairy farm. This suggests that a strategic destocking system has good potential as a management tool to reduce nitrate leaching losses in nitrate sensitive areas whilst being economically viable, particularly on farms where an effluent application system or a feed pad are already in place. Keywords: dairying, feed pads, nitrate leaching, nitrogen efficiency, productivity, strategic de-stocking

An Immigrant Filmmaker Substitutes an Alternative Vision of Adolescence: The Scarecrow (Sam Pillsbury, 1982)

2018 ◽  
Author(s):  
Alistair Fox
Keyword(s):  
New Zealand ◽  
Cinematic Adaptation ◽  
Alternative Vision ◽  
The Face ◽  
The Usa ◽  
Genre Film

By comparing Sam Pillsbury’s cinematic adaptation of Ronald Hugh Morrieson’s The Scarecrow (1963) with the original, this chapter shows how the filmmaker, who was raised in the USA and immigrated to New Zealand in his teens, empties the source novel of the moral ambiguities and transgressive elements that had made the original a genuinely New Zealand work, in so far as it reflected puritan guilt over transgressive impulses in the face of repression, and thus turned the story into a genre film that that is much more anodyne in its vision.

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