Livestock Biosecurity Requirements in Mississippi: What Every Producer Needs to Know

Livestock biosecurity is one of the most consequential compliance areas for Mississippi producers, yet it is often misunderstood until a disease event forces the issue. Biosecurity practices are designed to keep animals, facilities, and people safe from germs that can cause disease, and when an animal disease outbreak occurs, those practices can reduce the spread within a farm and prevent it from reaching other producers. Getting ahead of these requirements is not just good farm management — it is increasingly a regulatory and economic necessity.

Mississippi agriculture depends heavily on healthy livestock and poultry. Biosecurity is especially critical right now because of the threat of animal diseases such as highly pathogenic avian influenza, foot-and-mouth disease, classical swine fever, and African swine fever. Whether you run a small cow-calf operation or a large commercial poultry facility, understanding what the state requires — and what it strongly recommends — puts you in a far stronger position to protect your herd, your neighbors, and your livelihood.

What Is Livestock Biosecurity and Why It Matters in Mississippi

Biosecurity is another way of saying “infectious disease control” and refers to everything done to keep diseases and the germs that cause them — viruses, bacteria, fungi, parasites, and other organisms — away from your animals, property, and the people that may interact with them. In a practical farm context, that means physical barriers, management protocols, sanitation routines, and documentation all working together.

This is important whether your animals are on your farm, moving from one production site to another, going to auction, or participating in a show or event — because biosecurity not only protects you and your animals, it also protects your neighbors, employees, and, in the case of livestock and poultry, your consumers.

Good biosecurity practices can improve overall productivity and farm income. Fewer disease events mean lower veterinary costs, less mortality, and more consistent production output. The Mississippi Board of Animal Health (MBAH) is the primary state agency responsible for overseeing livestock and poultry health programs, and it provides both regulatory requirements and voluntary assistance programs to help producers meet biosecurity standards.

Mississippi producers raising cattle, swine, poultry, sheep, goats, horses, or exotic livestock all fall under the jurisdiction of the MBAH. The Board is authorized to deal with all contagious and infectious diseases of animals and to promulgate and enforce regulations necessary to control, eradicate, and prevent the spread of diseases of animals in the State of Mississippi. Understanding where your operation fits within that framework is the starting point for compliance. For context on how other states structure livestock health oversight, see how livestock disease reporting works in Florida and livestock disease reporting in California.

Premises Registration and Identification Requirements in Mississippi

One of the foundational steps in Mississippi’s animal health system is premises registration. Premises registration is a way to locate where livestock or animals are kept or congregated. Premises are listed in a computerized database with information about what species of animals are kept at any location, and each premises is assigned a number that remains with the location.

Premises registration allows for much faster traces when there is an outbreak of an animal disease or an animal-borne human disease. If the state knows where susceptible animals are located, it can control the disease more quickly. This is not a theoretical benefit — during active disease events, a premises identification number (PIN) can determine whether your animals are subject to movement restrictions or emergency quarantine orders.

• The Mississippi Board of Animal Health (MBAH) has a voluntary premises identification numbering (PIN) system.
• Registration of premises is necessary to purchase official (USDA) radio frequency identification devices (RFID), also known as electronic ear tags.
• There is no cost to Mississippi livestock producers to register a premises.
• If you have animals on multiple premises and all or part of the animals are moved between those premises, you can register them under one PIN. If animals are managed separately, you will need a PIN for each location.

On the individual animal identification side, all livestock entering Mississippi must be in compliance with the United States Department of Agriculture’s Animal Disease Traceability Rule. Official individual identification is an approved identification device under federal requirements that is tamper-proof and uniquely identifies the animal to the premises on which it was identified. Examples include official 840 tags — radio-frequency identification (RFID) tags or visual tags.

For livestock entering Mississippi from other states, Certificates of Veterinary Inspection (CVI) are required on all animals except livestock and poultry moving directly to slaughter, moving directly to a licensed stockyard, approved tagging site, or veterinary clinic for treatment. Only licensed graduate accredited veterinarians, or veterinarians regularly employed by the state of origin, or the Veterinary Services division of APHIS, USDA are authorized to inspect and issue official health certificates on livestock entering Mississippi. You can review the full entry requirements at the MBAH Chapter 12 Entry Requirements page.

Biosecurity Plan Requirements in Mississippi

Mississippi does not impose a single mandatory written biosecurity plan on all livestock producers by default, but the state strongly encourages — and in certain program contexts effectively requires — that you have one. MBAH directs producers to create a written biosecurity plan for their farm. For producers who want formal state recognition of their biosecurity practices, the Mississippi Secure Food Supply Program is the primary pathway.

The Mississippi Secure Food Supply Program offers free expertise and technical assistance to producers who create a Secure Food Supply Plan for their operation, with the dual goals of keeping animals healthy by limiting exposure to disease-causing pathogens and continuing movement of animals to maintain supply of products to customers and consumers.

Here is how the SFS plan process works:

1. MBAH staff are available to conduct on-site visits or phone consultations to assist producers with writing SFS plans.
2. Simple plans may take one to two hours to complete, while more complex plans may take longer.
3. Once the plan is complete, producers can voluntarily submit the plan for formal review by MBAH.
4. Program participants who have their SFS plan reviewed and accepted by MBAH will be prepared to quickly respond to animal disease outbreaks and will be ready to request animal movement permits in the event of an outbreak.

That last point carries significant weight. During a disease event such as a foot-and-mouth disease outbreak, movement permits become the difference between your operation continuing to function and being locked down. Producers with an accepted SFS plan are positioned to request those permits immediately. Producers should develop and implement a biosecurity plan and complete a regular review of their farm’s biosecurity practices that focus both on cattle and human health and safety.

For producers in other states who want to compare approaches, see how livestock disease reporting is handled in Colorado and livestock disease reporting in Illinois.

Animal Isolation and Movement Control Requirements in Mississippi

Controlling how and when animals move — both onto and off your property — is one of the highest-impact biosecurity measures you can implement. Regardless of the livestock species, the most common way contagious diseases are introduced is by adding animals to the herd, typically replacement breeding stock. Mississippi’s regulations address both the movement of animals into the state and the management of animals already on your premises.

No animal, including poultry, exotic or pet birds, or any species affected with or recently exposed to any infectious, contagious, or communicable disease, or that originated from a quarantined herd or area, shall be shipped or transported into the State of Mississippi, except those animals approved for interstate shipment by USDA APHIS Veterinary Services, except for immediate slaughter.

For exotic livestock, the requirements are even more specific. A prior permit for entry and a certificate of veterinary inspection with complete name and address of consignee and consignor are required on all exotics entering the state. Owners of exotic livestock in Mississippi are required to have an “Exotic Livestock Permit” issued by the Board of Animal Health.

On-farm isolation practices are equally important. Key steps include:

• Isolate all new or returning animals from your existing herd for a minimum of 30 days before commingling.
• Do not cross-use shovels, feed buckets, brushes, or other equipment between isolated animals and other livestock.
• Ensure workers clean their hands and boots and change clothes prior to entering other areas.
• Use your own trailer to transport your animals. If you do not have your own transportation, it is crucial to disinfect all returning animals’ hooves prior to entering your barn or stable.

For producers transporting animals, it is worth noting that owners and operators of private and common carriers, trucks, and other conveyances are forbidden to move any livestock or poultry into or through this state except in compliance with these regulations, and all railway cars, trucks, and other conveyances used for the transportation of livestock and poultry shall be maintained in a sanitary condition. For more on trailer-related compliance in neighboring states, see livestock trailer requirements in Pennsylvania.

Visitor, Vehicle, and Equipment Sanitation Rules in Mississippi

People and vehicles entering your property are among the most overlooked disease vectors in livestock operations. Vehicles are as much a risk for spreading disease pathogens as people are. Mississippi’s MBAH biosecurity guidance emphasizes strict sanitation protocols for anyone coming onto your premises — from veterinarians and feed delivery drivers to neighbors stopping by for a visit.

MBAH directs producers to routinely clean and disinfect animal housing facilities, vehicles, and equipment, and to regularly clean production areas and always clean equipment after use. These are not suggestions — they form the core of what MBAH inspectors and state veterinarians look for when evaluating a farm’s biosecurity posture.

For managing visitors and outside personnel, the following standards apply:

• Visitors and service providers should use disposable footwear or completely disinfect their footwear, and utilize single-use coveralls or clean clothing that can be washed after a farm visit.
• Clean and disinfect equipment and tools used on other farms prior to bringing them onto your farm.
• Do not allow anyone who was recently in a country where foreign animal diseases are present to have contact with your livestock or poultry for at least five days after they return to the United States.
• Ensure everyone at your facility understands biosecurity. Anyone regularly interacting with your animals, including family members, should have proper training on how to cleanly enter animal housing areas.

Establishing clear clean and dirty zones on your property is a practical way to enforce these rules. Reduce risk by clearly establishing clean and dirty areas where vehicles are and are not allowed. Livestock or poultry facilities can further reduce this risk by having vehicles go through cleaning stations before coming on the premises.

Maintaining up-to-date, accurate records for animal health — including vaccination, antimicrobial treatment, surgical procedures, feed delivery, and cattle transportation — is also part of a complete sanitation and biosecurity program. These records support traceability and demonstrate compliance if your operation is ever audited or subject to a disease investigation.

Wildlife and Pest Control Obligations in Mississippi

Wild animals and pests represent a persistent, often underestimated biosecurity threat on Mississippi livestock operations. MBAH specifically directs producers to prevent contact between wildlife and their livestock and poultry. This obligation is woven into the state’s broader biosecurity framework and is particularly relevant given Mississippi’s diverse wildlife population and warm, humid climate that supports year-round pest activity.

Feral swine are a specific legal concern in Mississippi. It is illegal to import wild or feral swine into Mississippi. Beyond import restrictions, feral swine that roam onto your property represent a serious disease transmission risk — they are known carriers of pseudorabies, brucellosis, and other pathogens that can devastate domestic swine herds. You are responsible for taking reasonable steps to prevent contact between feral swine and your animals.

White-tailed deer present a similar risk for cervid operations. It is illegal to import white-tailed deer into Mississippi. For operations housing cervidae, additional disease testing requirements apply at the point of entry, including brucellosis and tuberculosis testing.

Practical wildlife and pest control measures for Mississippi producers include:

• Installing perimeter fencing designed to exclude feral swine, deer, and other large wildlife from feed storage and animal housing areas.
• Securing all feed in sealed, pest-proof containers to eliminate rodent and bird attraction.
• Implementing a documented rodent control program using traps or approved rodenticides around all structures.
• Removing standing water, debris piles, and dense vegetation near animal housing areas to reduce pest harborage.
• Monitoring for wild bird activity around poultry houses, particularly during migratory seasons when HPAI risk increases.

Biosecurity is defined as a system of management practices that prevent or greatly reduce the risk of introducing new diseases to a farm or stable. Wildlife exclusion is one of the most cost-effective components of that system, and it is one area where proactive investment consistently pays dividends. Livestock guardian dogs can also play a supportive role in deterring wildlife from pasture areas where fencing alone is insufficient.

Dead Animal Disposal Requirements in Mississippi

Mississippi has specific, codified rules governing how dead livestock must be disposed of, and they vary by species. Failing to comply does not just create a disease risk — it can trigger an automatic premises quarantine. The governing authority is MBAH Regulations Chapter 07, which covers the disposal of dead animals.

For general livestock (cattle, horses, sheep, goats, and other species except confined swine and poultry):

• Carcasses must be properly disposed of at a depth sufficient to prevent offensive odors, fly breeding, and unearthing by other animals, and shall be covered under at least two feet of compacted earth, with more dirt placed over the surface after settling to prevent a ponding effect.
• Carcasses shall be disposed of on the owner’s property, or on another’s property with specific approval of the owner, or in permitted landfills. The carcass must be at least 150 feet from adjoining landowners’ property and at least 300 feet from an inhabited dwelling, or on land not in cultivation.
• All carcasses shall be properly disposed of before the end of the work day unless weather or environmental conditions absolutely prohibit.

For confined swine operations:

No dead swine, carcasses, offal, or any parts of any dead swine shall be disposed of by throwing or leaving along public roads, in fields, or woods or in any place, but must be properly disposed of in an approved incinerator or compost system within 24 hours of death, or by transportation to an approved rendering facility or permitted landfill.

The premises of each person growing swine for himself or others is hereby quarantined upon the placing of any dead swine carcass in other than an incinerator, compost unit approved by MBAH, or properly transported to a rendering facility or properly permitted landfill. This automatic quarantine provision makes compliance non-negotiable for swine producers.

For poultry operations:

No dead poultry, carcasses, offal, or any parts of any dead poultry shall be disposed of by throwing or leaving along public roads, in fields, or woods or in any place, but must be properly disposed of in an approved incinerator, compost system, or freezer.

MBAH issues certificates of compliance to poultry growers who provide and maintain an approved incinerator or compost unit of a size and design adequate to dispose of dead poultry carcasses in a manner approved by MBAH to prevent the spread of disease. The composter or incinerator unit must be located at least 150 feet from the property line or 600 feet from the nearest dwelling.

The broader legal framework for animal and poultry by-products disposal is codified in state law. The Animal and Poultry By-Products Disposal Law requires MDAC to control and regulate the transportation over state highways and disposal of poultry by-products, slaughterhouse offal, and carcasses of dead animals. You can review the full disposal regulations at the MBAH Chapter 07 Disposition of Dead Animals page.

Staying current with Mississippi’s dead animal disposal rules is part of a broader compliance picture that includes disease reporting obligations. Producers in neighboring states can review how those requirements compare by reading about livestock disease reporting in Michigan or livestock disease reporting in Florida for reference. For questions specific to your operation, contact the Mississippi Board of Animal Health biosecurity program directly — MBAH staff are available for on-site consultations and can help you build a disposal and biosecurity plan that meets all applicable state requirements.