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.: Home > Animal Science Papers and Reports > 2006 > Volume 24 Number 4 > Michael Mayntz1, Gra؟yna Sender2

Mammalian post-natal test of vitality presented on a Bos taurus model

Michael Mayntz1, Gra؟yna Sender2
1 Department of Biology and Chemical Engineering, Mنlardalens Hِgskola, SE-631 05 Eskilstuna, Sweden 2 Polish Academy of Sciences, Institute of Genetics and Animal Breeding, 05-552 Wَlka Kosowska, Poland
Abstract :

The behaviour of ten beef and six dairy cow-calf pairs was recorded between birth and first ingestion of colostrum. Effects were length, diameter, conicity and distance to the floor of each teat, girth of udder and height of wither of each calf, breed, lactation number, type of teat grasping and sex. Three teat grasping tactics could be defined: biter, tongue player and sucker. Effects were grouped representing cow, calf, udder and teat. Three sub-periods were defined. (i) From end of calving until the first touch of the standing calf’s head with a teat, influenced by lactation number. (ii) From the first touch of the standing calf’s head with a teat until the first teat was placed longitudinally in the calf’s mouth, influenced by teat grasping tactic. (iii) From the first teat being placed longitudinally in the calf’s mouth until the first ingestion of a substantial amount of colostrum influenced by teat conicity. A vitality evaluation hypothesis is presented to explain the functional implications of a surplus of milk and the clumsiness of some individual offspring to ingest it.

Keywords :
suckling/ first meals / fitness/ mother/ offspring

Date Deposited : 09 Aug 2011 10:43

Last Modified : 09 Aug 2011 10:43

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Volume 24, Number 4, - 2006

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