Temporary website updates are in progress to fix technical issues. For assistance, visit our Contact Us page.

Lasalocid sodium (LAS) – Medicating Ingredient Brochure

This page is part of the Guidance Document Repository (GDR).

Looking for related documents?
Search for related documents in the Guidance Document Repository

Status: Over the counter

Date of revision: December 2020

Table of approved species and claims
Approved livestock species Approved claim(s)
(abbreviated)Table note 1
Withdrawal time Name of approved brand(s)
Broiler chickens
  1. Aid in the prevention of coccidiosis
0 days
  1. Avatec 20 Lasalocid Sodium Premix
  2. Bovatec 20 Lasalocid Sodium Premix
Growing turkeys
  1. Aid in the prevention of coccidiosis
0 days
  1. Avatec 20 Lasalocid Sodium Premix
  2. Bovatec 20 Lasalocid Sodium Premix
Feedlot cattle
  1. Improved feed efficiency and increased rate of weight gain
0 days
  1. Avatec 20 Lasalocid Sodium Premix
  2. Bovatec 20 Lasalocid Sodium Premix
Pasture cattle
  1. Increased rate of weight gain
0 days
  1. Avatec 20 Lasalocid Sodium Premix
  2. Bovatec 20 Lasalocid Sodium Premix
Calves (up to 360 kg)
  1. Aid in the prevention of coccidiosis
0 days
  1. Avatec 20 Lasalocid Sodium Premix
  2. Bovatec 20 Lasalocid Sodium Premix
Lambs
  1. Aid in the prevention of coccidiosis
2 days
  1. Avatec 20 Lasalocid Sodium Premix
  2. Bovatec 20 Lasalocid Sodium Premix

Broiler chickens

Table of approved claims and brands
Approved claims Name of approved brand(s) Drug concentration in DIN product
Claim 1
  1. Avatec 20 Lasalocid Sodium Premix
  2. Bovatec 20 Lasalocid Sodium Premix
Lasalocid Sodium at 200 g/kg

Approved for use in meal or pellet feed

Claim 1

As an aid in the prevention of coccidiosis in broiler chickens caused by Eimeria necatrix, E. tenella, E. acervulina, E.. brunetti, E. mitis and E. maxima.

Level of medicating ingredient in a complete feed

105 mg/kg (0.0105%) of lasalocid sodium in the complete feed.

Directions for use in a complete feed

Feed continuously as the sole ration.

Warning

  1. No withdrawal period is required when fed up to the level of 105 mg/kg (0.0105%) of lasalocid sodium in the complete feed.
  2. Do not feed to replacement, breeding and laying chickens.
  3. Keep out of reach of children (required on premix and supplement labels only)

Caution

  1. Do not use this medicated feed for treatment of outbreaks of coccidiosis.
  2. Consult a veterinarian or poultry pathologist if losses exceed 0.5% in a two-day period.
  3. Compatible with bentonite, lignin sulfonate or Pel-Aid (Uniscope Inc.), when used as pellet binding agents (required on premix and supplement labels only)
  4. Do not allow horses or other equines access to lasalocid sodium, as ingestion may be fatal.

Accepted Compatibilities

Lasalocid sodium is compatible with the following drug/drug combinations. In cases where there are differences in withdrawal time for the compatible medicating ingredients, the longer withdrawal time is the one that must be used, and is the only one that is to appear on the label of the finished feed. For details, refer to the MIB as indicated.

Lasalocid sodium (broiler chickens)
Name of medicating ingredient MIB code Name of approved brand(s) Applicable claims
Bacitracin (as zinc bacitracin) BACN-Z Albac 110 Zinc Bacitracin Premix All claims

Growing turkeys

Table of approved claims and brands
Approved claims Name of approved brand(s) Drug concentration in DIN product
Claim 1
  1. Avatec 20 Lasalocid Sodium Premix
  2. Bovatec 20 Lasalocid Sodium Premix
Lasalocid Sodium at 200 g/kg

Approved for use in meal or pellet feed

Claim 1

As an aid in the prevention of coccidiosis caused by Eimeria adenoides, E. meleagrimitis and E. gallopavonis in growing turkeys.

Level of medicating ingredient in a complete feed

100 mg/kg (0.0100%) of lasalocid sodium in the complete feed.

Directions for use in a complete feed

Feed continuously as the sole ration from day one (1) for sixteen (16) weeks for males and fourteen (14) weeks for females.

Warning

  1. No withdrawal period is required when fed up to the level of 100 mg/kg (0.0100%) of lasalocid sodium in the complete feed.
  2. Do not feed to replacement breeding, and laying turkeys.
  3. Keep out of reach of children (required on premix and supplement labels only)

Caution

  1. Do not use this medicated feed for treatment of outbreaks of coccidiosis.
  2. Consult a veterinarian or poultry pathologist if losses exceed 0.5% in a two-day period.
  3. Compatible with bentonite, lignin sulfonate or Pel-Aid (Uniscope Inc.), when used as pellet binding agents (required on premix and supplement labels only)
  4. Do not allow horses or other equines access to lasalocid sodium, as ingestion may be fatal.

Accepted Compatibilities

Nil

Feedlot cattle

Table of approved claims and brands
Approved claims Name of approved brand(s) Drug concentration in DIN product
Claim 1
  1. Avatec 20 Lasalocid Sodium Premix
  2. Bovatec 20 Lasalocid Sodium Premix
Lasalocid Sodium at 200 g/kg

Approved for use in meal or pellet feed

Claim 1

For improved feed efficiency and increased rate of weight gain in feedlot cattle being fed in confinement for slaughter.

Level of medicating ingredient in complete diet

36 mg/kg (0.0036%) of lasalocid sodium in the complete diet.

Note (not required to appear on medicated feed labels)
  • Complete diet refers to the complete feed plus the roughage and must be corrected to a 100% dry matter basis.
Additional information (not to appear on feed labels)

Level of medicating ingredient in supplements & grain rations:

An average daily intake as specified in the table below:

This table contains information on the weights of the cattle being fed and the concentration of lasalocid used
Weight of cattle (kg) Lasalocid sodium mg/head/day
200-299 250
300 or greater 350

Directions

Thoroughly mix the supplement in the total daily diet or in the complete feed (grain portion of the ration) before use. Do not feed undiluted. Feed continuously until market weight.

Warning

  1. No withdrawal period is required when fed at the level of 36 mg/kg (0.0036%) lasalocid sodium in the complete diet.
  2. Keep out of reach of children (required on premix and supplement labels only)

Caution

  1. Do not allow horses or other equines access to lasalocid sodium, as ingestion may be fatal.
  2. Do not feed undiluted. Feeding undiluted or mixing errors resulting in excessive concentration of lasalocid sodium could be fatal to cattle (required on premix and supplement labels only)
  3. Compatible with bentonite, lignin sulfonate and Pel-Aid (Uniscope Inc.) when used as pellet binding agents (required on premix and supplement labels only)

Accepted Compatibilities

Lasalocid sodium is compatible with the following drug/drug combinations. In cases where there are differences in withdrawal time for the compatible medicating ingredients, the longer withdrawal time is the one that must be used, and is the only one that is to appear on the label of the finished feed. For details, refer to the MIB as indicated.

Lasalocid sodium (feedlot cattle)
Name of medicating ingredient MIB code Name of approved brand(s) Applicable claims
Melengestrol acetate MGAF MGA 100 Premix All claims (feedlot heifers)

Pasture cattle

Table of approved claims and brands
Approved claims Name of approved brand(s) Drug concentration in DIN product
Claim 1
  1. Avatec 20 Lasalocid Sodium Premix
  2. Bovatec 20 Lasalocid Sodium Premix
Lasalocid Sodium at 200 g/kg

Approved for use in meal or pellet feed

Claim 1

For increased rate of weight gain in pasture cattle (stocker cattle, feeder cattle, and beef and dairy replacement heifers).

Level of medicating ingredient in a complete feed

200 mg of lasalocid sodium per head per day.

Directions

Hand-fed supplements

Hand feed continuously a minimum of 0.5 kg of the medicated supplement per animal per day to provide 200 mg of lasalocid sodium/animal/day from the beginning to the end of the pasture season.

Free choice
  1. Medicated Mineral Feeds

    "Avatec 20" and "Bovatec 20" Premixes may be used in the manufacturing of medicated mineral feeds.

    Medicated mineral feeds should be fed free choice continuously from the beginning to the end of the pasture season. Aim for a consumption rate of 125 g medicated mineral per head per day, which will provide the recommended dose of 200 mg lasalocid sodium/animal/day. Increase the distance of the medicated mineral from the water source to decrease consumption of the mineral and visa-versa.

  2. Medicated Feed Blocks

    "Bovatec 20" and "Avatec 20" Premixes may be used in the manufacture of medicated feed blocks.

    Medicated blocks should be fed free choice continuously from the beginning to the end of the pasture season. Aim for a consumption of 1.0 kg of the medicated feed block per head per day, which will provide the recommended dosage of 200 mg of lasalocid sodium per animal per day.

    • Introduce a 1:1 or 2:1 (Ca: P) free-choice mineral with salt two weeks before introducing the feed block medicated with lasalocid sodium. Ensure cattle have consumed roughage before introducing the medicated block for the first time.
    • If cattle run out of the block medicated with lasalocid sodium, observe intake closely for three days after replacing the block, to prevent over consumption.
    • If consumption is too low, bring blocks closer to the watering and resting areas. In large pastures, blocks should be available in more than one location.
    • If consumption is higher than desired, move blocks further away from the watering and resting areas, and/or reduce the number of blocks available to cattle.
Additional information to be added as notes to feed labels
  • Expiration of the medicated feed block containing lasalocid sodium is 6 months from date of manufacture.

Warning

  1. No withdrawal period is required when fed according to label.
  2. Keep out of reach of children (required on premix and supplement labels only)

Caution

  1. Do not allow horses or other equines access to lasalocid sodium, as ingestion may be fatal.

Accepted Compatibilities

Nil

Calves (up to 360 kg)

Table of approved claims and brands
Approved claims Name of approved brand(s) Drug concentration in DIN product
Claim 1
  1. Avatec 20 Lasalocid Sodium Premix
  2. Bovatec 20 Lasalocid Sodium Premix
Lasalocid Sodium at 200 g/kg

Approved for use in meal or pellet feed

Claim 1

As an aid in the prevention of coccidiosis caused by Eimeria bovis and Eimeria zuernii in calves up to 360 kg of body weight being fed in confinement.

Level of medicating ingredient in complete diet

36 mg/kg (0.0036%) of lasalocid sodium in the complete diet.

Note (not required to appear on medicated feed labels)
  • Complete diet refers to the complete feed plus the roughage and must be corrected to a 100% dry matter basis.
Additional information (not to appear on feed labels)

Level of medicating ingredient in supplements & grain rations:

An average daily intake as specified in the table below:

This table contains information on the weights of cattle being fed and the concentration of lasalocid used
Weight of cattle (kg) Lasalocid sodium mg/head/day
50-99 100
100-149 150
150-199 200
200-249 250
250-299 300
300-360 350

Directions

Thoroughly mix the supplement in the total daily diet or in the complete feed (grain portion of the ration) before use. Feed continuously during periods of exposure to coccidiosis or when coccidiosis is likely to be a hazard.

Warning

  1. No withdrawal period is required when fed at a level of 36 mg of lasalocid sodium per kg of complete diet.
  2. Keep out of reach of children (required on premix and supplement labels only)

Caution

  1. Do not allow horses or other equines access to lasalocid sodium, as ingestion may be fatal.
  2. Do not feed undiluted. Feeding undiluted or mixing errors resulting in excessive concentration of lasalocid sodium could be fatal to cattle (required on premix and supplement labels only)
  3. Compatible with bentonite, lignin sulfonate and Pel-Aid (Uniscope Inc.) when used as pellet binding agents (required on premix and Supplement labels only)

Accepted Compatibilities

Nil

Lambs

Table of approved claims and brands
Approved claims Name of approved brand(s) Drug concentration in DIN product
Claim 1
  1. Avatec 20 Lasalocid Sodium Premix
  2. Bovatec 20 Lasalocid Sodium Premix
Lasalocid Sodium at 200 g/kg

Approved for use in meal or pellet feed

Claim 1

As an aid in the prevention of coccidiosis caused by Eimeria ovinoidalis (syn ninakohlyakimovae) and Eimeria ovina in lambs being fed in confinement.

Level of medicating ingredient in complete diet

36 mg/kg (0.0036%) of lasalocid sodium in the complete diet.

Note (not required to appear on medicated feed labels)
  • Complete diet refers to the complete feed plus the roughage and must be corrected to a 100% dry matter basis.
Additional information (not to appear on feed labels)

Level of medicating ingredient in supplements & grain rations:

An average daily intake as specified in the table below:

This table contains information on weights of the lambs being fed and the concentration of lasalocid used
Weight of lambs (kg) Lasalocid sodium mg/head/day
10 10
25 25
50 50
75 75

Directions

Thoroughly mix the supplement in the total daily diet or in the complete feed (grain portion of the ration) before use. Feed continuously during periods of exposure to coccidiosis or when coccidiosis is likely to be a hazard.

Warning

  1. Discontinue the use of this medicated feed at least two (2) days before treated lambs (sheep) are slaughtered for use in food.
  2. Keep out of reach of children (required on premix and supplement labels only)

Caution

  1. Do not allow horses or other equines access to lasalocid sodium, as ingestion may be fatal.
  2. Do not feed undiluted. Feeding undiluted or mixing errors resulting in excessive concentration of lasalocid sodium could be fatal to lambs (required on premix and supplement labels only)
  3. Compatible with bentonite, lignin sulfonate and Pel-Aid (Uniscope Inc.) when used as pellet binding agents (required on premix and supplement labels only)

Accepted Compatibilities

Nil