Holm & Laue GmbH & Co. KG

Model H&L 100 - Automatic Calf Feeding Systems


Recent scientifi c studies have demonstrated that by treating calves to an effective feeding programme as early as in the fi rst weeks of their life, considerably higher milk production can be expected (so-called metabolic programming).  Many small rations - their quantity, composition, and temperature matched with age, race, sex, and state of health of the respective calves - are the optimum preconditions to deploy the calves' genetic potential to their fullest extent. However, every farmer is faced with the issue of how to put this into everyday practice, despite a busy work schedule. Luckily the practice is (virtually) as easy as the theory when assisted by automatic feeding systems.  On the following pages, let us introduce you to our state-ofthe- art, computerised feeding technology and provide you with decision-making tools for planning your customised calf feeding solution.

  • Improved quality of life for yourself
  • Healthy calves reared in groups
  • Reduced costs, improved returns
  • Safety and reliability

Here's how it works:

  • The calf is identified electronically.
  • The milk diet is freshly prepared and pumped to the teat in a matter of seconds.
  • The tubing to the teat is rinsed after every visit, plus an automatic wash cycle is run twice a day.
  • An anti-pirate valve prevents others from stealing a calf's milk ration, so every single calf gets the quantity of milk it needs.
  • An added second mixer bowl allows simultaneous feeding of two calves.


The H&L Mixing System

  • Milk diet always freshly prepared, no temporary storage
  • Milk replacer mixed into water at various temperatures, as recommended by replacer manufacturer
  • Temperature-Optimised Mixing (TOM) for precise temperature adjustment, so the ration arrives at the teat with the desired drinking temperature

Peristaltic Pump in the Stall

  • Pump as an automatic training tool for calves at their first calls at the stall, delivers milk diet to the teat
  • Post-rinsing of bowl and line to the teat after every call
  • Anti-pirate valve to prevent milk pilferage

Wash Cycle

  • Detergent pump for washing all milk-carrying components
  • Wash temperature up to 60°C (140°F)
  • Easy-to-clean surfaces made of stainless steel or plastic

Milk Replacer Powder Supply

  • Large powder hopper, holds 50 kg (110 lbs) of CMR
  • Powerful powder-conveying auger, suitable for various milk replacers
  • Low rim of the hopper, only 112 cm (44 inches)

Control System

  • Integrated feeding computer with automatic data backup
  • Automatic registration of new calves
  • Flextime feeding capabilities, to avoid stressful regular feeding hours
  • Power-saving stand-by mode
  • Up to 150 calves' data in memory

Weather-proof, Made for Outdoor Rearing

  • Anti-freeze programme that automatically switches itself on
  • Humidity-proof powder reservoir
  • Fly shield supplied in the standard model
A Wealth of Optional Extras and Upgrades

Whether you are purchasing a brand-new H&L 100 or upgrading an existing one, this extensive array of options will leave nothing to be desired:

Dual Mixer Bowl

  • Simultaneous feeding of two calves
  • Easier training of large groups of calves

Feeder Stalls

  • Up to 4 stalls connected, for up to 100 calves
  • Acceptable distance between feeder and stall up to 5 m (5½ yd) (up to 8 m (8¾ yd) in certain circumstances)
  • ISO-compliant eartag identifi cation (half-duplex mode)
  • Animal weigh scale in the feeder stall for optimum calf management and individualised weaning by weight
  • Concentrate dispenser with weighing of left-overs, allows individualised weaning by concentrate intake

Whole Milk Diet Options

  • Kit for 100% whole milk diet with effective heat exchanger coil and automatic wash cycle
  • Kit for 50% whole milk diet with hot water-based mixing
  • Mobile whole milk tank with a gently turning agitator, as an option made of plastic or stainless steel


  • Storage tank (110 ltrs (30 gal.)) set on wheels
  • Agitator started at set intervals by the H&L 100
  • Cooling with water (no power needed) controlled by a thermostat

Additive Doser

  • Powder doser for diarrhoea prevention diet programme
  • Second medicine doser, at your discretion for powders or liquids

External Communications

  • CalfGuide management software
  • Error messages and refill alerts to your mobile
  • Printer and PC connection
Nutri Clean AL

State-of-the-art cleaning of automated feeding systems.
Nutri Clean AL is a dedicated cleaner specifically developed to satisfy the demanding needs of washing automated feeding systems automatically. Even difficult protein or fatty residues, including milk stone, cannot resist the dissolving force of Nutri Clean AL.

The concentration needed allows low dosage and thereby reduces the pressure on both the environment and your purse.

Nutri Clean AL is available in sizes 6 kg and 28 kg.

Recommended dosage with H&L 100:

  • automatic washing: low
  • washing of whole milk system: medium
  • with hard water: high

Dosage for other applications (e.g., in milking systems):

  • Let a 0.5 – 1 % solution circulate for approx. 5 – 10 minutes.
  • Pre-rinse and post-rinse with clear water.

How do I set up my barn for the installation of an automatic calf feeder?

When choosing an automatic feeder, be sure to opt for a unit that gives you as much flexibility as possible. With such a product, you can be certain that you will not have to settle for second best when you install and operate the system.

There are a few other things you should be aware of:

  • Ensure a reliable and appropriate mains power supply.
  • Use drinking water of good quality.
  • Maintain a clean environment around the feeder stall. This is the area most visited by the calves; it may get dirty very quickly. Therefore:
    • install the feeder stall on a base raised about 15 cm (6 inches) above pen floor level;
    • prepare a liquid drain (slope and manure gutter) below or behind the stall;
    • position the stall outside the main area of the pen;
    • clean or muck this area out regularly.
  • When you plan the design, be sure to allow enough space around the automatic feeder and stalls. This will tremendously facilitate routine tasks later on, such as pouring milk replacer into the hopper, replacing worn teats and tubing, and performing the yearly preventative system maintenance. Space for two palettes is suggested as a replacer storage area, and the installation of a lockable cabinet for drugs etc. is also recommended.
  • It is advisable that from the position of the feeder, all calves in the group are visible. This gives you the opportunity to visually check the information found in the data lists against the calves themselves.
  • As far as possible, use buried conduits to route wiring as well as the tubing to the teats. To avoid rodent intrusion, make sure that the butts of the conduits are sealed.
  • Although the automatic feeder is equipped with an antifreeze function, it is advisable to route the tubing to the teats through an insulating hose. Furthermore, make sure that the water supply line to the automatic feeder is frost-proof.
  • An entrance gate to the pen next to the feeder stall will tremendously facilitate your daily routines. It allows you easily into the pen when you are looking after the calves and it is useful when you teach them how to use the system.
  • Do not neglect future extensions of your feeding system. Prepare for the easy installation of additional feeder stalls by allowing for the space, a raised base, and the conduits that will be required.

Metabolic Programming

Scientific findings have shown that the first weeks in the life of a calf lay the foundations of its further development. Factors suchs as health, performance, and time in the operation before culling are heavily influenced by the nutrition the young calf is treated to. The more energy is available to the calf at this stage, the better its performance later in life will be.

But how will I give my calves a perfect start into life?

Feeding: Beestings at Birth

As the potential for immunoglobulin intake decreases rapidly in the new-born calf, colostrum should be made available to it within the first hour after birth. A high quality of the beestings is a decisive factor for laying the foundations of good immuno-defences. When deep-frozen colostrum is used, gentle heating has to be ensured. However, quantity, too, has an impact: 4 litres (1 gal.) are sufficient to give the calf enough protection by the valuable ingredients.

To put all this into practice reliably at any time and by any person around, there is a solution: coloQuick.

Feeding: Whole Milk/Powdered Milk Replacer

To be able to leverage all existing potentials, it is possible to offer milk ad libitum from the start. Whether this is whole milk or milk diet based on milk replacer is a matter of personal preference. Acidifiers allow extending the period of time whole milk can be stored. If replacer powder is used, only CMRs of high quality made from skimmed milk should be selected.

But how can you implement a performance-focused feeding programme with an automatic feeder?

The H&L 100 enables individual feeding of every single calf, to cater for its needs. Feeding supportive of metabolic programming (see the chart) can thus be achieved easily and even results in labour savings. A variable setting for the milk replacer concentration in the diet enables the adaptation of the feeding programme to the calf's age: 160 g/l in the first weeks of the programme, then gradual reduction to 120 g/l. In this manner, you offer the calves the energy they need during the stage in which they need it, and after it you save money on feeding cost. For weaning, too, is at the hands of the H&L 100, automatically and particularly gently.

What's Left for Me to Do When My Automatic System Feeds My Calves?

Plenty!! The automation only takes care of feeding your calves. You are still responsible for monitoring your calves' development, for identifying and treating sick ones. Monitoring is becoming increasingly important.

Consider what follows as a few suggestions for daily work in the barn:

  • Check twice a day that the automatic feeder and the calves are fine. The automatic feeder gives you the freedom to do this any time you choose.
  • Most of the time, the calves lie and rest. Therefore, walk among the calves and pay close attention. Make every calf stand up and, when it does, check for uncommon breathing sounds and the condition of the calves' excretions.
  • Checking the automatic feeder includes the following:
    • Is the milk replacer powder or the whole milk supply sufficient for the next 24 hours?
    • Does the mixing procedure run as intended?
    • Are there any error messages?
    • Is the outcome of the automatic wash cycle satisfactory?
    • Are there any teats that should be replaced?

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