With concerns over having sufficient levels of silage stocks available for the winter, quality over quantity is the best advice when it comes to making silage this year.

Making one big bulky cut, may appear to get you more silage in the yard, however with delayed/late first cut silage, both quality and quantity are compromised. A delayed heavy first-cut reduces annual yield/ha and can create problems when it comes to salvaging second/third-cut crops later in the year. Alongside this, grass growth rates are typically at their highest over the next few weeks, so delaying first cut means that farmers are not taking full advantage of rapid regrowth.

A general rule of thumb is to target a 50:50 split in quantity in both first and second cut (E.g., 20 tonnes per acre to be achieved in total. Ideally, this is a 10-tonne high quality crop in both cuts. Where first-cut is let go to a 13-tonne crop, the ideal quantity of harvest for second-cut crops may only be approximately 7 tonne).

Farms that routinely take earlier first cuts have higher and better-quality annual silage yields. Not only this, but in years such as 2012/13 or 2018 when farmers faced fodder shortages across the country, having higher quality silage was far more valuable. When high-quality silage is available in the yard, options of stretching supply are endless (e.g., dilution with straw, using cheap alternative straights, restricted intakes where headspace is sufficient). However, from a nutritional point of view, the option with poor quality silage is simple, ad-lib access and more meal.

Completing a fodder budget?

A good starting point is how much silage is leftover this spring. Check the current silage stock on your farm. From there, estimate how long you typically feed for in the winter months and always allow for a 3–4-week safety reserve. Finally, complete an assessment of stock numbers that will be carried over the winter months.

Silage requirements based on animal type: 

Measuring pits on farm

Length x breadth x average height in metres, divided by 1.35 = tonnes of grass silage

Or

Length x breadth x average height in feet, divided by 45 = tonnes of grass silage

Can we get more silage in the pit?

Agritech’s GrasZyme Sugarboost is proven to retain a higher proportion of silage in the pit post-harvesting. Losses on average will be reduced by 6.1%, this would equate to 6.1 tonnes of extra silage in every 100 tonnes ensiled. For example 1,000 tonne silage pit, + 61 tonne more available silage. With current silage costs, this would equate to a return on investment of 2:1, before taking animal performance benefits into account from treated silage.

More Information: 

For more information on assessing current silage stocks, and on GrasZyme Sugarboost, contact your local Agritech Sales Advisor.

The ultimate goal of calf rearing is to set up a heifer to achieve target weights over her lifetime in order to maximise profitability. These targets will include doubling her birthweight at the point of weaning, achieving 60% of her mature weight at breeding, and calving down at 24 months at 90% of her mature body weight.

To reach such targets, replacement heifers need to achieve a steady gain of approximately 0.75 kg/day from birth. Interruptions to performance over the calf-rearing period may offset such target weights being achieved. Therefore, adopting best practice calf rearing advice and protocols are of key importance over the next few vital weeks.

3-2-1 Rule

Good colostrum management is the most important factor in calf health and survival. Over the last 3-5 years, 70% of calves that presented for a post-mortem at regional veterinary laboratories, were found to have received either poor quality or insufficient quantities of colostrum.

When feeding colostrum, it is essential that the 3-2-1 rule is adhered to. This includes providing the calf with at a minimum of 3 litres (or 5-6% of a calf’s birth weight), within 2 hours of birth, using colostrum from the cows first milking. This process should then be repeated 8 hours later, however it is important to note that by the second milking, the dam’s immunoglobulin content will have halved.

Cleanliness of colostrum is a huge dictating factor, as the amount of dirt particles or contamination to the colostrum before entering the calf will limit the amount of immunity absorption available. Feeding pooled colostrum to calves is also not recommended as it can lead to major risk factors including increased disease risk and poor-quality colostrum entering the pool.

With this in mind, it is essential to ensure that all utensils are sterile and that milking protocols and good colostrum harvesting hygiene are applied.

Calf Hygiene and Facilities

Facilities ideally should be clean, dry, draught free, with good ventilation. A new-born calf will spend over 80% of their time lying down, therefore it is imperative to provide a deep, warm, dry bed always.

Calves should spend minimal time periods in the calving-pen to avoid picking up infection or disease. To avoid carrying disease into the calf shed over the peak calving months, set-up a wash point at the entrance to the calf shed for staff, vets, etc. Early detection of sick calves and isolation to avoid spreading bacterial infections, is also of high importance.

Rumen Development

Once a calf starts to intake water and starter concentrates/ration, we introduce healthy bacteria into the rumen which will kick-start rumen development. Starter concentrates and ad-lib fresh water should be available to the calf from three days of age. A clean source of long roughage/fibre (e.g. straw) should also be available at all times to promote dry matter intakes This forage should be offered above ground level in racks/mangers.

Weaning should only ever be considered once calves are consuming 1.5 kg of concentrates/day. Weaning calves on a weight basis, compared to an age basis, will result in a more uniform batch.

Milk Replacer Choice

When it comes to milk replacer, the three main benefits include:

1. Cost effectiveness
2. Reduced risk of disease transfer in the herd
3. Consistency in the calf’s diet

Milk replacer should be dairy derived and contain a high dairy content. Dairy proteins are more easily digestible and available to the calf compared to plant-based proteins. Both Vitalac Red and Blue Calf Milk Replacers contain a 90-95% dairy content.

Milk replacer should replicate the role of good quality whole milk, typically offered at 12.5% milk solids (E.g. 125 g powder, into 875ml clean water to make 1 litre of milk). Feeding a calf twice-a-day at 6 litres/day would result in offering the calf 750 g of powder/day.

When mixing, adhere to the milk replacer guidelines outlined below using fresh clean, warm water and sterile mixing and feeding utensils. The optimal drinking temperature of the calf milk replacer is 39°C. To prepare the milk, dissolve the powder in two-thirds of the amount of water at 55-60°C and add the remaining water at room temperature until the optimum drinking temperature is reached.

See typical milk replacer feeding guidelines below:

More Information:

For more information, browse our Vitalac Calf Milk Replacer page or download the Agritech-Milk-Replacer-Brochure (2.5MB).

With ever tightening profit margins, especially in the beef sector, the complex area of feed efficiency is and must continue to command close attention. In intensively fed animals there is a constant challenge to juggle the balance between optimising milk and meat output in the most economical way, while maintaining optimum rumen health at all times.

It is vital that the rumen environment is maintained in a healthy state to avoid the occurrence of acidosis. Acidosis occurs as a result of poor rumen health status and can present in two forms; clinical and sub clinical. The second form mostly presents as Sub Acute Rumen Acidosis (SARA). SARA is the main dietary performance constraint of intensively fed animals.

SARA has three principal causes: 

• High intakes of starches, sugars and acidic feeds.
• Inadequate structural fibre in diet.
• Inability of rumen to adapt to a highly fermentable / low fibre diet.

Identifying Sub-Acute Rumen Acidosis (SARA) in your herd

The tell-tale signs of SARA are sometimes difficult to detect through visual observation however, symptoms include:

• Animals performing 5-10% below capacity.
• Bubbles on dung.
• Less than 80% of animals which are lying down observed chewing the cud.
• Mildly depressed demeanour.
• Increased lameness levels.
• Cows swishing their tails (due to passing acidic manure).

Rumen Buffer Feeding

Maintaining good rumen health can be achieved through the inclusion of adequate roughage in the animals’ diet, such as straw and through the addition of a suitable rumen buffer. Straw can act as an excellent buffer but must be limited due to its low nutritive value and space requirement in the rumen. This year in particular, straw quality in many cases is not of adequate feed quality for livestock and is no longer a cheap option.

Feeding of an appropriate rumen buffer will play a valuable role on all farms where there are intensively fed animals or low fibre diets. A high-quality rumen buffer will not only help avoid problems like acidosis but it will also improve feed efficiency, optimise the rumen environment and maximise the return from your winter ration.

Rumicare– why it’s the best option

Rumicare is a phased release buffer and is available as Rumicare Beef and Rumicare Dairy. It contains a unique blend of buffers that each have their own mode of action and different speeds of breakdown (phased release) within the rumen. The combination of ingredients maintains a more desirable pH within the rumen at critical times throughout each 24-hour period.

Rumicare works on two different fronts in the fight against SARA. It directly neutralises rumen pH through its alkaline properties, while the added yeast also acts as a natural buffer by enhancing rumen bacterial growth. This combination of buffers and yeast has long been shown to gel very well together.

Speaking with farmers that have used Rumicare in the past, livestock are in great form, displaying improved appetites, performance and producing more consistent manures. Rumicare also smoothens transition diets with less setbacks and less displaced abomasums. Another added bonus is that it provides a very good level of calcium and magnesium, which is particularly important for the lactating dairy cow in early lactation.

On farm support during COVID-19

In order to keep our customers and staff as safe as possible, our sales team and distributors we will be minimising the number of on farm consultations. We are however, as always, available for FREE delivery direct to farm and over the phone consultations. Contact your local Agritech sales rep/distributor to place your order or click here. 

For further advice or information on our Welmin Mineral Supplements range, click here.

Silage fields that have not been grazed or that were closed up before the end of March are already at or maybe even slightly beyond optimum quality. The question is ‘do I cut or do I wait?’

To answer the ‘cut or wait’ question, the key factors of quality silage must be taken into consideration. The first and most important factor is cutting date. The second one is the weather conditions. Thirdly, the application of a quality silage additive, and finally, having ticked off all of the above boxes, the silage clamp must be covered and sealed properly.

According to Agritech’s Sales Director, John Kenny, “deferring the cutting date too far may result in additional and unnecessary expense for farmers.”

“Farmers currently have excellent quality material for harvesting and it is a huge pity to let the current fine spell of weather pass without harvesting silage and possibly end up making lower DMD silage in poorer conditions later in the month.    

“I am also concerned that when this spell of dry weather passes, there will be a surge of growth that will also draw more nitrogen up into the plant. This material when harvested, will bring its own issues with regards to fermentation and the making of a palatable feed for livestock”, says John.

With lengthy dry cow periods no longer in existence, quality silage is an essential requirement for the spring calving cow in late lactation and again when freshly calved, as it will help support early lactation body condition, milk yield and to allow the cow to return to cyclicity as quickly as possible.  

For beef cattle, a daily live-weight gain of 0.6 kg is considered the optimum for winter performance where the animals are returning to grass in the spring. Quality silage will again play a key role in achieving this growth level.

Ensiling Process – Key to quality

 “The application of a proven silage additive at ensiling is a very important part of securing as much of the quality in the winter forage as possible. It speeds up the preservation and retains more of the feed value within the pit, in addition to retaining more actual silage in the pit”, says John.

Agritech’s GrasZyme Sugarboost Forage Additive has long proven itself as an effective silage preservation aid. The unique technology used in the additive has been scientifically proven to reduce unnecessary plant breakdown and ensure reliability even in difficult low-sugar conditions.

GrasZyme Sugarboost is independently proven to deliver on key silage additive criteria, namely improved animal performance and reduced dry matter losses.

A total of 19 independent trials have been shown to deliver:

• + 1 litre of milk per cow per day and .09% milk protein increase
• + 110g daily live-weight gain in beef animals
• 6.1% reduction in dry matter losses

The reduction in dry matter losses alone will cover the cost of purchasing the silage additive, with the extra animal performance coming for free.

John concludes, “With farm margins ever reducing, it is no longer economical to use purchased concentrates to offset poorer quality silage. Farmers must now take the opportunity to make the most efficient use possible of homegrown forage and especially grazed grass and grass silage.”

Get in touch

All Agritech sales representatives and distributors are trained to assist farmers in getting the most from their silage. Assistance is available with choosing the best grass mixture, right up to the point of harvest and the use of a quality silage additive.

To find out more about, GrasZyme Sugarboost, click here

To find your local Agritech sales representative/distributor, click here

As we await the arrival of an ever superior generation of calves over the coming months, it is now worthwhile to take a closer look at young calf nutrition when planning ahead for the busy season.

Members of the Agritech team recently attended a Calf Performance Conference at the Blanca Research Facility in Spain which featured presentations from many renowned researchers, including Professor Alex Bach.

According to Agritech’s Sales Director, John Kenny, “From the conference, it became clear to me that at a level, we are significantly restricting the potential of our calves in this country with the level of milk replacer we feed to them. While this is fine for young calves which are destined for beef, it is totally uneconomical to take this approach with dairy female calves.

Feed efficiency runs at the rate of 60% in a young calf compared to just 7% in a pre-calving two year old heifer. I believe that our national dairy herd has much more to gain by taking a closer look at this area going forward.”

Pre-Weaning  

Farmers today are very well informed when it comes to the area of managing and feeding adequate amounts of colostrum to the new born calf in a timely manner. However, the benefits of achieving maximised weight performance from day two to weaning are far less documented in Ireland.

Let’s take an example of the calf’s mammary gland. When a dairy heifer calf is born, its mammary gland constitutes just 1% of its total body weight. If the daily live-weight gain of this calf is inadequate up to weaning, this key organ will most likely remain at this percentage. However, if calf performance is raised up to as near as possible to 1kg per head per day, the cells in this key gland will continuously split and multiply to the extent where the mammary gland will increase to approximately 2% of the calf’s body weight at 9-10 weeks of age.

While the above example highlights the mammary gland, the benefits of accelerated growth pre-weaning are applicable to all of the key organs in the young calf’s body, including heart, lungs, kidneys etc. The long term benefits of achieving a better developed calf at weaning with bigger and stronger organs are proven to deliver significant lifetime benefits through increased daily yields and improved disease immunity. It is also now widely accepted that the effects of increased growth pre-weaning on first lactation alone is circa +300 litres milk yield.

John states that that there is no such thing as compensatory growth with this approach to calf rearing. “Once the cells in each organ stop dividing at in or around the nine or ten week stage, they grow in line with the rest of the animal’s body thereafter. Farmers will only get one chance in a calf’s lifetime to secure this advantage.”

Vitalac Calf Milk Replacer

Agritech work with leaders in calf nutrition to bring a calf milk replacer range which will encourage accelerated growth and performance. Agritech’s Vitalac Calf Milk Replacer Range from Nukamel offers a well-balanced level of highly digestible fat and protein via carefully selected, high quality ingredients. These quality ingredients are further enhanced through the use of advanced techniques and technology such as Emulsizym and Spray Cooling Technology. 

Tried and tested by Teagasc at Grange Research Institute, Vitalac Milk Replacers for calves showed increases in live weight gain and concentrate intakes of 8% and 10% over other leading brands on the market. Vitalac Calf Milk Replacer is highly soluble and suitable for both bucket and/or automatic feeding systems.

For more information on the Vitalac Calf Milk Replacer Range and calf rearing, contact your local distributor or click here.