Studies on monozygous cattle twins

The growth and development of the beef qualities of Angoni cattle (East African shorthorn zebu). Part II. Linear growth and carcass characters

“…The changes in body proportion show little differences within sexes between areas up to the age of 16 weeks, showing that up to this age the maternal influence is paramount. This agrees with the results of all work on B. taurus by Brody & Ragsdale (1924) and Hansson, Brannang & Claesson (1953) and also fits with Lampkin (1960) on the Boran, although on this fundamental premise only. From 16 weeks to weaning the environmental nutritional level should exert some effect, but it will be seen that there are no differences between Station and Reserve cattle within sexes for body length at weaning, as for minimum significance the difference is 3-1 cm.…”

“…The growth of the female in either area is less influenced by nutrition and thus differs fundamentally from females of B. taurus, where Hansson et al (1953) showed that considerable differences in proportion could be made by a low plane of nutri-tion. The proportional growth of the female Angoni thus differs fundamentally from that of B. taurus and is undoubtedly governed by what was said earlier, the need to reach optimum reproductive ' size' as early as possible, a mechanism designed to ensure race survival.…”

The Prognosis in Juvenile Obesity

“…Obesity is known to shorten the life of animals (McCay, Maynard, Sperling and Osgood, 1941;Hansson, Brannang and Claesson, 1953;Kennedy, 1951Kennedy, , 1955. For a long time insurance companies have known that among adults accepted for life insurance overweight of all degrees and at all ages is associated with a high mortality and morbidity.…”

Experiments on the nutrition of the dairy heifer: I. Protein requirements of yearling stock

“…* Dr Bailey died on 24 April 1955. 28 The maximum rate of growth of dairy heifers is not necessarily optimal when considered in relation to subsequent productivity and longevity (Steensberg, 1947;Bonnier, Hannson & Skjervold, 1948;Anon., 1952;Filmer, 1952;Hannson, Brannang & Claesson, 1953;Reid, 1953a;Crichton & Aitken, 1954) or in relation to their efficiency of food utilization over the growth period (Pawson & Blackett, 1954). Information is required therefore on the protein intakes necessary to support a range of growth rates, for the above experiments stress that growth rates and hence protein requirements are variable and not static (a tacit assumption of earlier workers).…”