What JSR Genetics does

JSR Genetics Ltd is the leading UK pig genetics company, operating as the exclusive UK distributor for Topigs Norsvin, the world's most innovative pig genetics organization. Founded in 1982 in East Yorkshire by John Sykes Rymer (originally as JSR Healthbred), the company sells breeding stock and artificial insemination (AI) products to commercial UK pig producers, with selected international exports including a 2020 shipment of 262 breeding pigs to India. The product portfolio centres on the TN70 gilt (combining L-Line Landrace and Z-Line Large White damlines, marketed as the world's number one sow with ~1 in 4 global share) and three terminal sirelines (TN Tempo, TN Duroc launched 2023, and JSR 400 Hampshire-based). Underlying technology relies on Topigs Norsvin's balanced breeding program covering 41 traits, supported by Computer Assisted Sperm Analysis (CASA), Nucleo Cell Counters, AI-powered computer vision in free-farrowing systems, CT scanning of boars at Delta Canada and Delta Norway, and Near Infrared Spectroscopy (NIRS) for feed efficiency selection.

JSR operates a B2B sales-led go-to-market with a direct sales team, an AI order line (0800 97 98 99), and in-house Coolink temperature-controlled farm-gate delivery to maintain biosecurity. Production is anchored at the Callerburn AI stud (opened 2017) and the new Southlands 1,600-sow greenfield breeding unit (2024), with nucleus multiplication supported by Topigs Norsvin's Delta Canada, Delta Norway, and Innova Canada facilities. Quantified customer outcomes include 2.5% pre-weaning mortality reduction, +0.75 litter size increase, 10–20% slaughter pig profitability uplift, and £1.08–£5.56 per finished pig margin improvement with TN Duroc. All ~70 staff transferred to Cranswick plc on 17 January 2025 when the Rymer family sold JSR Genetics Ltd, and the business continues to operate as a separate entity within the Cranswick portfolio.

Name

JSR Genetics

Legal name

JSR Genetics Ltd

Website

https://jsrgenetics.com

Company type

Private

Founded year

1982

Operating status

Acquired

Headcount range

51–100 employees

Short description

JSR Genetics is the UK-exclusive distributor of Topigs Norsvin pig genetics, selling the TN70 gilt and three terminal sirelines plus AI services to commercial pig producers, and was acquired by Cranswick plc in January 2025.

Ownership category

akta.pro rank

Product category

Pig Genetics / Animal Breeding

NAICS

Hog and Pig Farming (112210)

SIC

Agricultural Prod-Livestock & Animal Specialties (200)

akta.pro primary industry

Boar Studs & Semen Production (AFAEAEAF)

akta.pro secondary industries

High-Health/Biosecure Hog Production (SPF/Pedigree Nucleus) (AFAEAEAL), Genomic Testing & Genetic Evaluation Services (AFAEAJAC)

Keywords

• Pig genetics
• Artificial insemination
• Swine breeding stock
• Terminal sirelines
• Damline genetics

Headquarters

HQ city

Little Driffield

HQ country

United Kingdom

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure, Supply Chain

Revenue model

1. Pig Genetics Products: Sale of superior pig genetics including TN70 gilts, terminal sirelines (TN Tempo, TN Duroc, JSR 400), and damlines (L-Line, Z-Line) as breeding stock for pig producers.
2. Artificial Insemination Semen Doses: Supply of premium pig semen doses with in-house Coolink delivery to customer farm gates. Products include carefully selected boars with superior genetics for growth efficiency, carcase quality, and robustness.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels7 records

Core offering

JSR Genetics is a UK-based pig genetics company that breeds and supplies superior pig breeding stock and artificial insemination services to commercial pig producers. As the exclusive UK distributor of Topigs Norsvin genetics, it sells the flagship TN70 gilt, terminal sirelines (TN Tempo, TN Duroc, JSR 400), and damlines (L-Line, Z-Line) along with premium pig semen doses delivered via in-house Coolink farm gate service. The company also offers JSR Academy, an 18-month City and Guilds accredited pig production training programme.

Product overview

JSR Genetics is a UK-based pig genetics company offering a portfolio of genetic products for pork production. The product line consists of two damline breeds (L-Line Landrace and Z-Line Large White) combined in the TN70 gilt, and three terminal sirelines (TN Tempo Large White-based, TN Duroc, and JSR 400 Hampshire-based). These products are sold primarily through artificial insemination services, with AI studs equipped with CASA technology and in-house delivery. The company operates through a partnership with Topigs Norsvin (world's most innovative pig genetics company) and was acquired by Cranswick plc in January 2025. JSR Academy provides training services for career development in the pig industry.

Differentiator

Problem solved

Functional benefit

Brands

• TN70: The TN70 sow is based on the L-line (Landrace) and Z-line (Large White), combining prolificacy, weaning ability, and sow stayability with top contribution to finishing pig quality. Marketed as the 'only gilt you'll ever need' for both indoor and outdoor production.
• TN Tempo
• TN Duroc
• JSR 400
• JSR Academy
• L-Line
• Z-Line

Products and services

• TN70 Gilt The flagship gilt product combining L-line (Landrace) and Z-line (Large White) genetics, producing large litters of strong, uniform piglets with excellent mothering ability, high milking capacity, and robustness for both indoor and outdoor production systems. Marketed as the 'only gilt you'll ever need'.
• TN Tempo Terminal Sireline A Large White based terminal sireline with strong focus on growth, feed conversion, and robustness traits. Known as the 'WEAPON in our Armoury', bred for superior and uniform growth performance to slaughter weight with offspring having inherent tolerance to feed and disease challenges.
• TN Duroc Terminal Sireline A terminal sireline developed over several years from Norwegian Viking genetics, designed to rival any Duroc in the market. Delivers improved feed efficiency, increased robustness, better carcase value, and superior meat quality with quantified gains of +0.8% to +3.6% more full value pigs at slaughter, +0.1% to +0.9% carcass yield, and +£1.08 to +£5.56 margin per finished pig.
• JSR 400 Hampshire Terminal Sireline A Hampshire based terminal sireline sourced from stock raised without antibiotic growth promoters since 1986. Produces progeny with low mortality due to improved immunity and high feed intake, strong fast growing piglets with superior meat eating quality.
• L-Line Damline (Landrace) Pure Landrace damline bred for maternal ability, productivity, efficiency, and carcase quality. Validated by a 2.5% reduction in pre-weaning mortality, longer lasting sows, and 10-20% profitability improvement on slaughter pigs over 5 years.
• Z-Line Damline (Large White) Purebred Large White sow line known for strong fertility performance and robustness. Produces high fertility with low mortality due to excellent mothering abilities, lean and efficient progeny with around 1mm backfat reduction since 2012.
• Artificial Insemination Services and Semen Doses Premium pig AI services supplying semen from carefully selected boars with superior genetics for growth efficiency, carcase quality, and robustness. Features Computer Assisted Sperm Analysis (CASA) for morphology and motility, Nucleo Cell Counter for concentration measurement, and in-house Coolink temperature-controlled delivery to customer farm gates.
• JSR Academy Training Programme 18-month bespoke training course covering all aspects of pig production to UK standards, with no previous agricultural experience required. Delivers City and Guilds qualifications and career opportunities within JSR Genetics or the wider pig industry.

Quantifiable outcome

• 1 extra piglet weaned per litter over 5 years
• +10 more outcomes

Named customers4 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability7 records

Feature6 records

Partnerships

Two partnerships are on record, tiered core.

• Cranswick plccoreStrategic or Co-development Partner · 17 January 2025Acquisition by Cranswick plc completed on January 17, 2025. JSR Genetics Ltd was purchased from the Rymer family in East Yorkshire. The sale includes all pig businesses: Pyramid, Commercial units, AI Studs and third party finishing contracts. All approximately 70 staff transferred to Cranswick. JSR Genetics remains a separate entity within Cranswick portfolio.
• Topigs NorsvincoreTechnology or Integration · 1 January 2015Strategic partnership established in 2015 with Topigs Norsvin, the world's most innovative pig genetics company. JSR Genetics is powered by Topigs Norsvin and is the exclusive distributor of Topigs Norsvin genetics in the UK. The partnership provides access to world-leading research, balanced breeding program, and €34m annual R&D investment. Products include TN70 sow, TN Tempo, TN Duroc, and damline genetics.

Scale indicators5 records

Recent moves9 records

Expansion highlights5 records

Broad incumbents

• Topigs Norsvin: Topigs Norsvin is JSR Genetics' exclusive UK distribution partner and the world's second-largest pig genetics company. It owns the genetic IP behind TN70 and is both a partner and a broader global incumbent whose product strategy directly shapes JSR's roadmap.
• Genus plc: Genus plc is the LSE-listed parent of PIC and the global leader in pig (and bovine) genetics. As a broad incumbent with proprietary genomic selection technology, it sets the competitive ceiling for JSR's product differentiation and pricing power in the UK.

Direct peers

• Pig Improvement Company (PIC): PIC is the world's largest pig genetics business and a division of Genus plc. It sells proprietary damlines, sirelines, and AI services globally, directly competing with JSR's TN70, TN Tempo, and TN Duroc offerings in the UK and international markets.
• Axiom (Axiom Génétique Porcine): Axiom is a major French pig genetics company now part of Groupe Grimaud, selling damlines, sirelines (incl. NaïMa, P76, Pietrain) and AI doses across Europe, directly comparable to JSR's product portfolio and AI service model.
• Choice Genetics (Groupe Grimaud): Choice Genetics is the global swine genetics arm of Groupe Grimaud, offering proprietary maternal and terminal lines with strong presence in Europe, the Americas, and Asia — a direct competitor to JSR in international tenders and AI services.
• Danbred: Danbred is one of the leading international pig genetics suppliers, offering proprietary Landrace, Yorkshire, and Duroc lines. It competes with JSR's L-Line, Z-Line, and TN Duroc products, particularly in European export markets.
• Rattlerow Farms: Rattlerow Farms is a UK-based pig breeding company supplying damlines, sirelines, and AI services to UK producers. It is the closest UK-domestic peer to JSR Genetics, competing head-to-head for the same UK pig producer customer base.
• Hypor (Hendrix Genetics): Hypor is the swine genetics brand of Hendrix Genetics and a direct competitor selling damlines, sirelines, and AI services to pig producers in Europe and globally, overlapping with JSR in UK and EU markets.

Others

• Cranswick plc: Cranswick plc is JSR Genetics' parent company following the January 2025 acquisition. It is one of the UK's largest vertically integrated pork producers, providing JSR with a captive UK customer base and supply-chain integration rather than direct product competition.

Regional players

• Tönnies Livestock: Tönnies is a major German pork processor with its own integrated genetics and breeding operations. While primarily serving continental European production, it represents the vertically-integrated competitor model that JSR is now partially exposed to via Cranswick.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/jsrfarminggroup
• Facebookfacebook.com/JSRFarmingGroup

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about JSR Genetics