National Program for Improvement of Guzera Milk: results of progeny testing, Zebu Genetic Improvement ABCZ and Nucleus MOET Program.

There are two schools of thought concerning the most appropriate environment in which to select breeding animals. One says ‘ Always select animals under environmental conditions similar to those where they are to be used ‘. The other says ‘ Select breeding animals in the optimum environment so that they have the best chance of revealing their genetic capabilities ‘. Experiments on growth of laboratory mice and experience with European cattle in the tropics have shown the advisability of the first course in these cases. In regard to hill sheep and dairy cattle in Britain, on the other hand, practice favours the second course, but there is little experimental evidence to support it.

10.1017/s0369852100001445

Cite

Citations (2)

Is it possible to make progeny testing of dairy cattle a quicker and more accurate process

P. Dassat

Progeny testing

Source

Cite

Citations (0)

Insider tip on Mogli: the top climber among the Manigos!

A. Weismeier

Source

Cite

Citations (0)

Progeny testing for milk yield. Evaluation of standard lactations to March 1990.

O. Grüter

Source

Cite

Citations (0)

Comparison of progeny testing of Hariana sires by different methods of sire evaluation.

Environment and Ecology (2014)

A.K. Pal D. S. Dalal A. S. Khanna Ram Niwas

Sire

Progeny testing

Source

Cite

Citations (0)

Pedigree Analysis of Top Milk Yielding Cows

Annals of Animal Science (2014)

Z. Sobek Jolanta Różańska-Zawieja A. Nienartowicz–Zdrojewska Beata Dybionka

Abstract The aim of the research was to identify the sires that left the greatest number of cows with lifetime yield over 100 000 kg of milk, and to indicate the pedigree relations among these sires. The population analysed was of Dutch origin. The database covered the years 1950-2012 and comprised the information on 22 429 HF (Holstein-Friesian) cows with lifetime yield exceeding 100 000 kg of milk. They were the progeny of 3 888 sires. The conducted analysis proved that some bulls sire more top yielding cows (including those with the lifetime yield of 100 000 kg of milk or above) than others. Some of those sires were related to one another, and the ancestors of bulls that sired the greatest number of daughters belonged to the sire lines known worldwide.

Sire

10.2478/aoas-2014-0074

Cite

Citations (0)

Comparison of methods of progeny-testing dairy bulls using incomplete lactation records.

XVIII International Dairy Congress, Sydney (1970)

P. D. P. Wood Lorna O'Connor

Source

Cite

Citations (0)

Jersey breed in the Russian Federation.

Zootekhniya (2019)