Johnstown Castle Research Farm,Co.Wexford
The Johnstown Castle Beef research unit is located 5km from Wexford Town in the South East of Ireland.It forms part of the Johnstown Castle Estate,where the main centre for the 亚博体育官网无法亚博体育平台是黑彩取款Teagasc Environment programme is located.Also on the estate is the EPA headquarters,Department of Agriculture offices along with a substantial dairy winter milk research farm.
The beef farm is split between two units,namely the beef unit and Kildavin farm.An underpass facilitates the movement of cattle between the two units,as the main road between Piercestown and Murntown divides the beef farm land block.
Beef Farm Manager:Brendan Swan
Latitude 52°17'N,longitude 06°30'W.Elevation 55m.
The beef research farm is divided into two units,the Beef Unit and Kildavin Farm (formerly the Organic Unit).牛肉单位占地面积50.92公顷,while Kildavin Farm covers 53.75ha,giving a total of 104.67ha.Of this,44.3ha are excluded from the beef research trial work currently ongoing in Johnstown Castle.Some of this area is used to graze the 亚博体育官网无法取款Teagasc Grange maternal herd steers and heifers,while some is used for other 亚博体育平台是黑彩environmental research and experiments.
The distribution pattern of the soils within Johnstown Castle beef farm is complex and varied.The soils range from reasonably free draining Brown Earths to gley soils and other such soils with moderate or poor drainage capacity.
In the beef unit there are 47 paddocks ranging between 0.46 and 2.82ha in size.The Kildavin farm is divided into 51 paddocks,ranging from 0.62 to 2.12ha.The Kildavin farm is divided twice by two public roads.An underpass and farm roadways facilitate the movement of cattle between the farm units.
这两个单位是经营一个农场,which is subdivided into low,medium and high stocking density farmlets for theHerbage allowance trial 2015 -2019.(pdf) There are approximately 26 paddocks not included in this study.The high,medium and low farmlets have 23,24 and 24 paddocks respectively.These can be seen on the farm map as blue (low stocking rate),green (medium stocking rate) and pink (high stocking rate) colour codes.
Beef building infrastructure
- Covered cattle crush and drafting facilities.
- 3 silage pits
- Calf rearing shed - approximately 150
- Winter accommodation - 65 finishers and 60 weanlings
- Covered cattle crush and drafting facilities.
- 2 silage pits
- Winter accommodation - 350 finishers and 320 weanlings
Johnstown castle receives 250 calves (at 15 weeks of age) in May/June of each year for the 亚博体育官网无法取款Teagasc/ABP dairy beef programme.These 亚博体育官网无法取款animalsare also used for the 亚博体育官网无法取款Teagasc Herbage Allowance trial.The 亚博体育官网无法取款animals are kept at Johnstown Castle until slaughter at between 19 and 26 months of age.
In addition to the Dairy Beef Programme 亚博体育官网无法取款animals,the Johnstown Castle beef farm rear approximately 150 calves to graze commercially.
The maternal herd yearlings (~116) are grazed for their second season and wintered in Johnstown castle prior to slaughter - seeGenetics and breeds - Rob Prendiville(pdf).
Reared calves are typically obtained in May/June.They are let out to grass and supplemented with 1kg of concentrate/head/day.The calves are rehoused in November and fed good quality silagead liband 1.5-2kg concentrates,with spring turnout typically the end of February/beginning of March,weather depending.
The aim is to finish the heifers at 19-21months of age (October/November),being fed 2.5 kg concentrate DM for 60 days pre-slaughter.The steers are finished between 21 and 26 months of age.
Steers that are not fit for slaughter at 21 months are housed for their second winter when target closing farm pasture cover is reached,or as dictated by weather conditions (October/November).The indoor feeding programme includesad libsilage.Those that remain to be finished after the second winter are turned out in March (weather depending) and typically killed in June after 100 days at pasture.
On the Johnstown Castle beef farm,there are two experiments running concurrently;
The 亚博体育官网无法取款Teagasc/ABP dairy beef programme (2015-2020)
The current 亚博体育官网无法取款Teagasc/ABP dairy beef programme builds on the previous Teagasc Dairy Beef production systems trial work completed from 2010 to 2015.The aim is to identify the most suitable beef bull genetics for crossing on the dairy herd,to genetically improve main breeds supplying beef bulls to dairy herd,and thereby improve the efficiency and profitability of dairy beef production.
- 亚博体育官网无法取款Teagasc Herbage Allowance trial 2015-2019(PDF).
- 亚博体育官网无法取款Teagasc/ABP dairy beef programme 2016 and 2017(PDF).
The ICBF with theirGene Ireland dairy beef programme(PDF) play an important part in the programme,enabling the distribution of dairy beef straws to dairy farmers as well as carrying out performance testing of progeny from the programme in their centre in Tully,Co.Kildare.
Herbage Allowance Trial (2015-2019)
The aim of this trial is to establish the optimum herbage allowance that can increase the carcass output,while also investigating the 亚博体育平台是黑彩environmental impacts of reducing the herbage allocation.
Previous research at carried out at Johnstown Castle since 2010 has evaluated the performance of dairy calves across varying production systems.These trials included:
- Male dairy calf to beef production systems
- Early maturing calf to beef production systems
- The supplementation of calves during their first season at grass
The purpose of these studies was to establish profitable blueprints of production for producers. The trials included dairy bull,steer and heifer systems,and early maturing heifer and steer systems.
Concentrate supplementation to calves during their first season at pasture
A research study was conducted to evaluate the influence and potential benefits of additional concentrate supplementation tocalves during their first season at pasture.(PDF).
Alternative finishing strategies for male Friesian calves
Finding the optimal targets and production blueprints,and ultimately the most profitable system,for male dairy calves has been a large focus of the dairy beef research.The performance results,profitability and blueprints for optimum systems are outlined hereAlternative finishing strategies for male Friesian calves(PDF).
Production systems for early maturing crossbred calves
The early maturing dairy calf-to-beef trials investigated the effects of date of birth (early and late spring born) and slaughter age of both steers and heifers in low input pasture based production systems.The performance results,profitability and blueprints for optimum systems are outlined hereProduction systems for early maturing crossbred calves(PDF).
Herbage production of calf to beef production systems
A key element of profitable dairy calf-to-beef and early maturing crossbred systems is the efficient utilisation of grazed grass.The variation in the feed budgets for grass,grass silage and concentrates for each production system can be found hereHerbage production calf to beef(PDF).
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