Results 91 to 100 of about 199 (135)
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Cattle twins and freemartin diagnosis
Veterinary Record, 1978Some cattle breeding improvement programmes particularly in continental Europe aim to reduce the costs of rearing calves by increasing the number suckled by each cow. This encourages the rearing of twins and an increase in the number of heifers born twin-to-bull.
F, Kästli, J G, Hall
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Reproductive anatomy and cytogenetics of freemartin heifers
Veterinary Record, 1981Out of a batch of 46 heifers obtained for breeding 19 were found to be freemartins by both anatomical and cytogenetic examination. Considerable variation existed in the reproductive tracts of these freemartins from structures that were essentially female to some that were essentially male in type.
P R, Wilkes, W V, Wijeratne, I B, Munro
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The Prenatal Development of Bovine Freemartins
1975Freemartins in cattle have long been a classical example of naturally occurring intersexuality in a common animal species. The beautiful studies of Frank Lillie (1916, 1917, 1923) and of his pupils (Chapin, 1917; Willier, 1921; Bissonnette, 1924, 1926) and those of Keller and Tandler (1916) are well known.
A. Jost +3 more
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[Twins in cattle. Freemartin or not a freemartin? Preliminary Communication].
Tijdschrift voor diergeneeskunde, 1983The preliminary results of comparative studies designed to make it possible to establish a diagnosis of 'freemartin' are reported. Three methods were used, namely typing of the blood, chromosome analysis and determination of the length of the vagina.
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Freemartin Condition in a Goat
Journal of the American Veterinary Medical Association, 1981M C, Smith, H O, Dunn
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Diagnosis of freemartinism in sheep
Veterinary Record, 1989R N, Spedding, H, Dobson
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