Popielno White

Poland's only surviving native rabbit breed descends from the Polish albinotic rabbit (rasa polska albinotyczna), which no longer exists in its original form. Work began in 1950 at the Institute of Animal Production's station at Chorzelów under prof. Z. Kamiński, from 40 albinotic rabbits — 20 bought at the market in Myślenice, 20 from the liquidated station at Brzezie — averaging only 2.5 kg (5.5 lb). Size was raised by one reciprocal cross with the Belgian Giant Grey in the late 1950s, using heterospermy.

While the type was being fixed, litters were cut to two kits and pregnant does over-wintered outdoors in wooden cages to improve the coat of their offspring. From 1955 the work continued at the Polish Academy of Sciences station in Popielno, which gave the breed its name, and a uniformly white herd was achieved there in 1964. The rabbits left for Jastrzębiec in 1965; Popielno today keeps horses and cattle, not rabbits.

A true albino: snow-white guard hair 2.5–3.0 cm (1.0–1.2 in), very dense and springy, over a snow-white undercoat without gloss, with red eyes. The 2022 standard allows white or flesh-coloured claws, where older Polish sources allowed flesh-coloured only. The build is harmonious — straight topline, cylindrical well-muscled trunk, slightly sloping rump, head firmly set on a short neck — with a head of about 10 cm (3.9 in) and fine, sharply pointed erect ears of 12–13 cm (4.7–5.1 in). Does may carry a small symmetrical dewlap.

Rabbits are judged alive from five months, in daylight but never direct sun, on a 100-point scale: size 0–10, body structure 0–20, breed type 0–20, coat quality 0–20, colour 0–10 and breed-specific traits 0–20; 96–100 is outstanding, 93–95 very good, 89–92 good. Disqualifications include weight below 3.5 or above 5.7 kg, lop or over-fine ears under 11 cm or over 15 cm, a large asymmetric dewlap, a sparse coat and strong yellowing.

Adults must weigh 3.5–5.7 kg (7.7–12.6 lb); anything outside disqualifies. The 2022 weight-for-age table runs 2.5 kg at three months, 3.5 kg at six and 4.2–5.5 kg at eight. The 2007 table was more demanding, so growth figures from older Polish sources look high today.

Real animals sit in the lower half of the band. A study of 534 licensed Popielno Whites, mostly six to eight months old, averaged 4044 g (8.9 lb, SD 697.64) against 4392 g for 447 Blanc de Termonde on the same farm, significant at P ≤ 0.01. Herd mean doe weights in 2015 ran 3.5–4.1 kg, and 'too low body weight' was a recurring criticism from judges. The Polish advisory service's 5 kg ceiling contradicts the standard.

• Standard band 3.5–5.7 kg (7.7–12.6 lb); measured mean 4.04 kg (8.9 lb)

The programme credits litters of seven to eight kits with about 6.5 reared; the institute's breeders' guide says eight to nine born and 7.0–7.5 reared. The 2015 survey of all nine registered herds is lower and better for planning: 6.35 born alive and 5.41 weaned per litter, with 1.72 litters and 9.45 weaned per doe per year at 15.6% mortality.

Management moves those numbers: the best herd reached 2.6 litters and 16.9 kits reared per doe per year at 8.64% mortality. Individual does have borne 13 kits and reared 11, and a peer-reviewed comparison reports litters up to 14 and the highest reproductive indicators among six breeds tested. Gestation averages 30.9 days, and does over 48 months averaged 17.1 kits a year against 12.2 at 13–24 months.

Kits weigh 580–760 g at 35 days (mean 662.2 g). On complete pellets they average 2600.3 g at 90 days, gaining 28.9 g a day; on farm-produced feed the same weight takes until about day 120. The programme gives about 2.7 kg (6.0 lb) at 90 days with dressing reaching 60%, other sources above or around 60% — treat roughly 60% as an approximation. Carcass quality is reported as close to the New Zealand White.

• Per litter (2015, nine herds): 6.35 born alive, 5.41 weaned
• Per doe per year: 1.72 litters, 9.45 weaned, 15.6% mortality
• Gestation 30.9 days; about 2600 g at 90 days on pellets

No behavioural study of this breed exists in an acceptable source, and this page will not invent one. Polish sources document only maternal behaviour and hardiness: does are described as very protective mothers with good rearing results, and the breed is repeatedly credited with a very high capacity to adapt to unfavourable conditions — hence its place in backyard and organic systems. A peer-reviewed paper notes it can be kept as a pet, but nothing ranks its temperament against other breeds.

At 3.5–5.7 kg the breed sits in the 'over 2.5 up to 6 kg' band of the Polish minimum-housing regulation: a cage for a single rabbit or a doe with young must be at least 0.32 m (12.6 in) high with 0.24 m² (2.6 sq ft) of floor at not less than 0.38 × 0.6 m, a pen needs the same area at 0.4 × 0.6 m, and group housing 0.08 m² per head. Outdoor cages work — the strongest reproductive herd of 2015 used them with farm feed — at the cost of roughly a month's slower finishing.

• Single cage or doe with litter: ≥0.32 m high, ≥0.24 m² floor at ≥0.38 × 0.6 m
• Group housing ≥0.08 m² per rabbit; basic-herd animals singly, sexes apart
• Nest box for does not on litter; recommended 45 × 35 × 30 cm

The regulation sets the cage; the floor sets the feet. Sore hocks — ulcerative pododermatitis — is inflammation of the skin on the sole, not of the hock joint. The MSD Veterinary Manual gives the causes as pressure from wire flooring, trauma, dirty housing, obesity, poor mobility and genetic factors, and states that heavy breeds are more likely to develop it from the pressure on their feet. At a standard 3.5–5.7 kg (7.7–12.6 lb) this is a heavy rabbit.

The resting surface is the best-documented lever. A veterinarian who examined 105 009 does and 10 722 bucks on 664 Spanish and Portuguese farms between 2001 and 2012 recorded mean prevalences of 7.5% and 5.2%. Footrests — plastic mats covering part of the mesh — were the largest single factor in the model, explaining 53.5% of the variation: 4.87% of does affected where they were fitted against 13.71% where they were not (P < 0.01). The share of farms using them rose from 27.8% to 75.2% over those twelve years.

Litter and plastic slats are not automatically safe either. A Swiss survey of 1090 breeding does on 17 group-housing farms bedded that way still found 25% with ulcerative lesions likely to be painful on at least one hind leg, 4% to 49% by farm, with age, body weight and claw length the most important risk factors. Whatever the floor, give a heavy doe a dry solid resting area and look at the soles of the feet at every weighing and at licensing.

The institute's published series starts in 1999 with one herd and 30 does. Herd numbers peaked at 10 in 2013 and 2014; the doe count peaked later, at 537 in 2023, after a post-peak trough of 336 does in six herds in 2017. Recent years read 510 does in 2024, 526 in 2025 and 529 in nine herds in 2026, against a target of at least 500 — up from 200 in the 2007 version. For 2005 the current programme cites 74 does in three herds, the 2007 programme and a 2016 review 78; that discrepancy is in the official documents.

The verdict is unambiguous: on the number of does in the books the breed is endangered and requires continued protection. There is no ex-situ gene bank, because no effective method of freezing rabbit semen was available when the programme was written. Reference dates differ — the population table is as at 30 April, the composition of 59 bucks and 527 does in eight herds as at 1 December 2021. Neither ARBA nor the British Rabbit Council recognises the breed.

The current programme is Annex 1 to Ordinance No. 11/22 of 21 January 2022 of the institute's director; its first version was adopted by the Scientific Council on 14 December 2005 and introduced by Ordinance No. 20/07 of 2 July 2007. It is run by the breeder, the National Animal Breeding Centre (KCHZ), which keeps the herdbook and carries out performance and genetic evaluation, and the institute as coordinator. A herd needs at least 12 basic-herd does — 8 where other breeds are also kept — animals conforming to the standard, individual live phenotype assessment of every breeding buck and doe, and individual mate selection. Participating herds receive financial compensation.

Six records are due each year: does and bucks in the basic herd at 31 December, all litters from those does during the year, numbers born and reared to 31 December, and mean numbers born and reared per litter. The 2007 version also asked for four per-doe indicators, so an older checklist over-reports. KCHZ evaluated nine Popielno White herds in 2024, out of 109 rabbit herds. Over ten years on two farms, 97.9% of assessed rabbits scored positively and 2.1% were disqualified — but only animals meant for herd improvement were assessed.