Cattle
Library & Archive
General knowledge for this animal group. Individual breed histories and conservation challenges live in their own collections.
American Milking Devon cattle at the Lowcountry Zoo, South Carolina. · DiscoA340 · CC BY-SA 4.0 · License terms
Read. Understand.
Carry knowledge forward.
Reports keep the source, date and meaning of a fact together. Articles follow the animal’s story. Essays connect that knowledge with the choices preservation asks of us.
Heat stress starts before collapse: reading the herd and its environment
A practical look at shade, water, airflow and the limits of breed-level heat-tolerance claims.
Read the original →Guide · General cattleA calf is not a miniature adult ruminant
A newborn calf does not yet have the fully functioning rumen of an adult cow. University of Minnesota Extension explains that milk normally passes toward the abomasum through closu
Read the original →Guide · General cattleThe first milk and early immunity
Colostrum is the cow's first milk after calving. University of Maryland Extension describes it as rich in antibodies and other compounds important to calf health. Receiving and abs
Read the original →Guide · General cattleDry bedding, ventilation and a young animal's heat balance
A calf uses energy to maintain body temperature as well as to grow. University of Maryland Extension explains that its relatively high surface-area-to-volume ratio and undeveloped
Read the original →Guide · General cattleProtecting a herd from outside and within
University of Minnesota Extension distinguishes preventing disease introduction from limiting spread inside a herd. New cattle, shared equipment and people can connect otherwise se
Read the original →Article · General cattleThe extinct ancestor inside cattle history
The aurochs, Bos primigenius, was the wild progenitor of taurine and indicine domestic cattle, commonly treated within Bos taurus. This ancestry does not apply to domestic yaks, wh
Read the original →Article · General cattleA stomach organized around microbes
Cattle are ruminants. Much of their feed is fermented by microbes before reaching the glandular stomach. The rumen, reticulum and omasum form the forestomach system; the abomasum p
Read the original →Article · General cattleThe ovarian cycle and the beginning of pregnancy
The normal cattle estrous cycle averages about 21 days, with a usual range of 18–24 days. Estrus, or heat, is the shorter period of sexual receptivity within that cycle. Ovarian fo
Read the original →Article · General cattleWhat the photograph shows—and what it cannot tell us
From a first impression to a useful field observation
Read the original →Article · General cattleKeeping a living breed: animals, families and a place in the world
Why conservation needs more than a familiar name
Read the original →Report · General cattleHistory & heritage · General species
An original chapter in the species world. Individual breed histories and identity stay in their own collections.
Read the original →Report · General cattleScientific identity · General species
An original chapter in the species world. Individual breed histories and identity stay in their own collections.
Read the original →Report · General cattleEcology & human landscapes · General species
An original chapter in the species world. Individual breed histories and identity stay in their own collections.
Read the original →Report · General cattleConservation & challenges · General species
An original chapter in the species world. Individual breed histories and identity stay in their own collections.
Read the original →Guide · General cattleUnderstanding the animal: care foundations
Digestion, nutrition, daily observations and the differences that matter between animal groups.
Read the original →Report · General cattleA status is not a census.
An original research report on conservation categories, taxonomy, population evidence and preserving a living inheritance.
Read the original →Every breed has its own shelf.
A foundation for deeper understanding.
Our first priority is teaching: bringing the animal’s history, characteristics and conservation challenges together in one place. Official breed organizations and research sources support further learning. Member records and submissions can come later.
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