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Cross-Breeding

 Subject
Subject Source: Nahste

Found in 212 Collections and/or Records:

Notes relating to crossing experiments with Paramecium, 1964-1965

 Item
Identifier: Coll-1255/5/21
Scope and Contents

Contains notes regarding crossing experiments with Paramecium. The back of the bound pages contain longhand notes on heredity, gene action, antigen variation in variety 1 of Paramecium aurelia, nuclear and cytoplasmic determinants of hereditary characters in Paramecium aurelia.

Dates: 1964-1965

Percheron-Shetland First-Cross at 2 Years Old, 1870s-1930s

 Item
Identifier: Coll-1434/3097
Scope and Contents

Photograph of a Percheron-Shetland first-cross horse at 2 years old standing in a paddock in [Argentina] in 1904. Image from 'the author's' book 'Argentine Shows and Live Stock 1904.'

Dates: 1870s-1930s

Performance of crossbred sheep from a synthetic dam line, 1979

 Item
Identifier: Coll-1362/1/684
Scope and Contents

Located in A.B.R.O. Reprints 1979. Volume 13 of 19.

Dates: 1979

Performance of lambs from three crossbred ewe types, 1984

 Item
Identifier: Coll-1362/1/836
Scope and Contents

Located in A.B.R.O. Reprints 1984. Volume 18 of 19.

Dates: 1984

Repeated backcrossing and hybrid vigour in poultry, 1956

 Item
Identifier: Coll-1362/3/48
Scope and Contents

Located in Poultry Research Centre Staff Papers 1953-57.

Dates: 1956

Romulus [and James Cossar Ewart], 1870s-1930s

 Item
Identifier: Coll-1434/326
Scope and Contents

Photograph of James Cossar Ewart standing with Romulus, the zebra/horse hybrid, on the lawn behind a house in the late 19th or early 20th century.

Dates: 1870s-1930s

Sex-Linked Chickens - Black Leghorn x Barred Rock, 1870s-1930s

 Item
Identifier: Coll-1434/3361
Scope and Contents

Photograph of two sex-linked chickens - Black Leghorn x Barred Rock - with the cockerel standing on the left in the early 20th century.

Dates: 1870s-1930s

Sex-Linked Chickens - Buff Leghorn x Light Sussex, 1870s-1930s

 Item
Identifier: Coll-1434/3360
Scope and Contents

Photograph of two sex-linked chickens - Buff Leghorn x Light Sussex - with the cockerel standing on the left in the early 20th century.

Dates: 1870s-1930s

Sheep Breed Types, 1870s-1930s

 Item
Identifier: Coll-1434/1667
Scope and Contents

Eight photographs of different breeds of sheep, both rams and ewes. The four top images are labelled 'Parents' and the four on the bottom are labelled 'Types Appearing in F2.'

Dates: 1870s-1930s