Granja Caprina San IsidroCartagena, Murcia, Spain
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Spain Breeding and technical report

How we select
the farm's goats

For selection, we use parentage, production and family records alongside our own tools. We look for functional goats that maintain production.

Continuity since 1991

We have worked with selection
for more than 20 generations

We have worked continuously on selection and parentage recording since 1991. We were founding members of ACRIMUR and began within its programme; we now use our own tools.

The current digital archive preserves part of that history. Data migrations and losses mean the whole history cannot be equated with a complete digital pedigree of more than 20 generations for every animal.

We rely on what we have learnt working with the herd and on the information available for each decision.

San Isidro bucks
San Isidro bucks.

What we look for

We look for goats that produce
and work well on the farm

Milk and solids

Milk yield, fat, protein and lactation persistency help assess productive performance.

Breeding and herd management

Kiddings, fertility, prolificacy and morphological assessment provide context on an animal's function.

Families and matings

Parentage, relatedness and mating plans help assess the continuity and diversity of the lines.

Health and longevity

Health and productive-life records broaden the analysis. They help guide improvements; they do not guarantee results on another farm.

More than three years of applied AI

Our own tools
help us analyse the records

We use artificial intelligence to develop our own code, automate tasks and support data and animal analysis. We also query the databases using AI tools.

The indices and calculations use our own methodology. AI helps us work with information, while checking the data and making the final decision remain human responsibilities.

We compare animals within contemporary groups and consider the amount and reliability of information: an isolated record should not carry the same weight as a repeated signal.

Public technical report · 14-10-2026

How we use records
to make decisions

This summary describes the farm's own system. Internal indices are selection tools, not official genetic evaluations from an association or certifications of superiority over other herds.

1. Information and parentage

Historical parentage work includes checks and sampling. Available records connect animals, parents and offspring. The specific coverage for an animal or group can be reviewed during a technical enquiry.

2. Production and multi-trait assessment

Our own SSI indices for bucks and DRI for females combine production, breeding, morphological and family information. Comparisons use contemporary groups and reliability mechanisms to temper conclusions based on limited data.

3. Breeding bucks and offspring

Information from daughters helps assess a breeding buck. Estimates are moderated statistically when few offspring have been observed.

4. Relatedness and mating plans

The system calculates Wright's inbreeding coefficient and relatedness between animals. Mating plans incorporate this information alongside selection objectives.

5. Health and productive life

There are analyses of functional health, longevity and the peripartum period. Some are exploratory: their existence does not mean every indicator is used in the current indices.

6. Scope and results

Production, health, longevity, mortality and replacement needs are working objectives. This report does not publish improvement percentages or guarantee individual yields. To assess a purchase, review the group's available records and the conditions at its destination.

History and digital archive. The claim of more than 20 generations worked with comes from the owners. It does not establish more than 20 complete generations in every animal's digital pedigree.

Summary based on the project's technical documentation and the owners' account. Individual records and complete internal reports are provided directly to interested buyers.

Where we are

We are in San Isidro,
in the Campo de Cartagena

We are in San Isidro, Cartagena, Murcia. You can come and see the herd and buildings; call us beforehand to arrange a visit.

Directions ↗Arrange a visit
Aerial view of the Granja Caprina San Isidro buildings

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Contact

Call us
and we can discuss the sale

Tell us whether you are interested in the doelings, other groups, the complete herd or the farm. We can explain the terms and arrange a visit if you wish.

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