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© 2026 mrumiwe ♥ cats

mrumi · feline care & commerce

Care · Catteries · Knowledge

Every gram.Every purr.Every litter.

BARF calculator, owner panel, breeder panel, verified cattery map, and a magazine grounded in current research — in a single tool. Free.

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Cat looking directly at the camera

„Every gram. Every purr.”

Daily

320g

80 / 10 / 5 / 5

M

Mrumik

Your panel · 4.2 kg · OK

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Ecosystem

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Each works on its own. Together they form an ecosystem of cat care that doesn't require five browser tabs.

Measurable care

BARF calculator

Daily

320g

Queen4.2 kg· adult·activitymoderate

Muscle meat80%
256 g
Edible bone10%
32 g
Liver5%
16 g
Other organs5%
16 g
Weekly 2.24 kg·Cost ~38 PLN / day·Supplements taurine · vit. E · iodine
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Your cats

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CatsCalendarBARF
M

Mrumi

Maine Coon · 3 yrs · 4.2 kg

OK
B

Bayou

British · 18 mo · 3.8 kg

Vaccine Dec 12
S

Saga

Norwegian · 5 mo · 1.9 kg

OK
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12Queens
3Litters
18Kittens
2025 · Q12026 · today
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How many calories for a 4 kg cat?Maine Coon catteries near KrakówVaccination schedule for a kitten
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For a 4 kg adult cat with moderate activity — about 250 kcal/day, 80% muscle meat, 10% bone, 10% organs.

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Trust

Grounded in current research.

Every article is based on peer-reviewed research and guidelines from global institutions (ISFM, WSAVA, EFSA, JAVMA).

Scientific sources

ISFM · WSAVA · EFSA · JAVMA

„Every article cites specific publications. No forums, no “experts” from Instagram, no esotery.”

Content update

Article reviews based on new scientific findings

„Every article carries a visible review date — when a new meta-analysis or official guideline lands, we revisit the text and update it.”

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„No more 'black boxes'. We show every variable, indicator, and source. No hidden algorithms — verify the result yourself in 30 seconds.”

Cited sources
ISFMPractice GuidelinesWSAVANutritional GuidelinesEFSAPet Food ReportsJAVMAFeline StudiesFIFeBreeding StandardsAAFPPractice GuidelinesCornell Feline Health CenterPubMedfeline nutritionISFMPractice GuidelinesWSAVANutritional GuidelinesEFSAPet Food ReportsJAVMAFeline StudiesFIFeBreeding StandardsAAFPPractice GuidelinesCornell Feline Health CenterPubMedfeline nutrition
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Magazine

Latest from the magazine

Whole magazine
BARFFive cats of different coat colors — orange tabby, black, tortoiseshell, white with odd eyes and brown tabby — sitting in a row looking at the camera

13 Surprising Facts About Cats, Backed by Science

Cats can't taste sweetness, hear a mouse's ultrasound, bond with you like an infant, and rolling in catnip protects them from mosquitoes. 13 surprising facts — each with a specific peer-reviewed study.

7 min·Source: ISFM
AnatomyA tabby cat lounging comfortably in a cardboard box in a warmly lit living room

Why Do Cats Love Boxes? (And Why They Sit Even in a Square of Tape)

A cardboard box isn't a whim — for a cat it's a tool for coping with stress, a source of warmth, and a safe hideaway. We show what the research really says: from a shelter box experiment to cats sitting inside an optical illusion of a square. With an honest line between facts and overinterpretation.

6 min·Source: WSAVA
EthicsA frame sequence inspired by Étienne-Jules Marey's 1894 chronophotography — a falling cat mid-rotation demonstrating the righting reflex

Why a Cat Lands on Its Feet

Marey 1894, Kane & Scher 1969, Whitney & Mehlhaff 1987 — how physicists, neurologists, and vets unraveled the puzzle of the feline righting reflex. And why no mechanism replaces a net on the balcony.

10 min·Source: FIFe

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Central Europe
2105hodowli·7krajów