Monday, 04 September 2017 09:19

Stats show better calving pattern

Written by 
There has been a marked improvement in calving patterns, says LIC. There has been a marked improvement in calving patterns, says LIC.

New herd reproduction data released by LIC shows good news for the industry and areas of opportunity for the upcoming mating period.

The data, from the 2016-17 season, is from almost 4000 herds with a detailed fertility focus report in Minda, representing about 30% of NZ herds.

The statistics illustrate herd achievement compared to industry targets, which are the benchmarks set by the industry to help farmers measure their animals’ reproductive performance and identify areas for improvement.

Malcolm Ellis, LIC general manager NZ markets, says the highlight of the national statistics is a marked improvement in calving pattern, with more farmers achieving the target of having 60% of the herd calved within three weeks.

Last season, 67% of herds hit that target, up from 52% in 2014. This is now the third consecutive year calving patterns have improved, “a great achievement that can deliver big benefits to a farm’s bottom line”.

“It should also provide a solid base to make further improvements across the board this coming mating season.

“A tighter front end calving pattern allows more cows to recover from calving and start cycling before mating starts, giving them a higher chance of conceiving early in the mating period. This means more cows are in-calf earlier and then more days in milk before Christmas.”

Ellis says the calving pattern also helps drive the most important measure, the six week in-calf rate, with the target to get 78% of the herd in-calf in the first six weeks of mating.

The latest stats show a modest drop in the 6-week in-calf rate, with the national average now at 66%, down 0.9% on the previous year.

The chief contributor to the drop in 6-week in-calf rate was a decline in submission rate – the percentage of cows that received at least one AB insemination or natural mating during the first 3 weeks of mating. The national average herd submission rate declined by 2.1% and the heifers were slightly harder hit with a 2.3% decline on last year.

This is understandable given the season, Ellis says.

“The low dairy payout and a challenging spring in many regions would have played a part in some of these key performance indicators dropping slightly but farmers can flip this into an opportunity this coming mating period.”

Ellis cautioned farmers about shortening mating length solely to tighten calving pattern, as that can lead to more empties.

“In the lead up to this year’s mating season the most important thing farmers can do is make sure their cows have a good body condition score and they are nailing their heat detection.”

Ellis emphasised a concentrated calving pattern next season starts with a good mating management programme this season.

“Many will identify the ‘start of the season’ as June 1, others the start of calving as ‘when it all gets underway’ but I have no doubt that the fortunes and success of next season start with mating. Planning, attention to detail and heat detection are key.”

More like this

BVD Control in Dairy Herds: How to Find & Remove PI Animals

Bovine Viral Diarrhoea (BVD) is estimated to cost New Zealand's dairy and beef industries more than $150 million every year, yet many of the tools needed to control it are already well understood. After more than 25 years in veterinary practice, Andrew Weir, animal health technical specialist at LIC, has seen firsthand the impact BVD can have on herd performance. We asked him about the role of persistently infected (PI) animals and the practical steps farmers can take to reduce their risk.

Featured

GP Rural: New Pathway Proposed to Fix Rural GP Shortage

The Royal New Zealand College of General Practitioners (the College) and Hauora Taiwhenua Rural Health Network are calling for investment in a proposed new training pathway for rural GPs, warning that many rural practices are struggling to recruit while a large share of the existing workforce nears retirement.

CODC Sludge-to-Lauder Plan Slammed by Federated Farmers

Federated Farmers has called on Central Otago District Council (CODC) to drop or vote down a plan to truck sludge from Alexandra and Cromwell to farmland near Lauder, warning it would compound an "outrageous" situation created by a separate council's decision weeks earlier.

Southland Farmers Face Wet Weather Toll, Support Available

Farmers across parts of Southland and South Otago are continuing to deal with difficult conditions after a prolonged run of wet weather, with pressure building around feed supply, stock management, pasture damage, farm infrastructure and everyday workloads.

National

Machinery & Products

» Latest Print Issues Online

Milking It

» Connect with Dairy News

» eNewsletter

Subscribe to our weekly newsletter