Sweat glands in Zebu (Bos indicus L.) and European (B. taurus L.) cattle.  I. Size of individual glands, the denseness of their population, and their depth below the skin surface

Nay, T; Hayman, RH

doi:10.1071/ar9560482

Cited by 57 publications

(40 citation statements)

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“…On the basis of these data each gland in the ox, therefore, can be considered to secrete at a mean rate of 0 0166d1./hr compared with 0 013 #1./hr in the goat. The volume of a sweat gland in the goat has been found here to be approximately 0-003 mm3 whereas that in cattle (B. taurus) was found by Nay & Hayman (1956) to be 0f01 mm3. Thus it can be inferred that in relation to sweat gland volume the output from the sweat glands of the goat during their period of activity is at least comparable with that from cattle sweat glands.…”

Section: Discussioncontrasting

confidence: 46%

Studies on the nature of sweat gland ‘fatigue’ in the goat

Jenkinson¹,

Robertshaw²

1971

The Journal of Physiology

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1. The nature of the ‘fatigue’ of sweating that occurs in the goat upon exposure to environmental conditions of 40° C/26° C (dry bulb/wet bulb) has been examined. 2. Heat exposure activated all the sweat glands and the decrement in sweating which occurred was due to a decline in the amount of sweat produced by each gland. 3. The decline in sweating activity was associated with a decrease in sweat gland volume and a thickening of the glandular wall. The restoration of sweat gland function took approximately 5‐6 hr after removing the animal from the hot environment but the restoration of sweat gland volume took longer. 4. The volume of sweat produced was greater than the decrease in sweat gland volume and it is concluded that ‘fatigue’ is due to the rate of expulsion exceeding the rate of sweat production. 5. Repeated intravenous injections of adrenaline at 40° C resulted in a decline in sweat output and reduced the normal glandular response to heat exposure.

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Section: Discussioncontrasting

confidence: 46%

Studies on the nature of sweat gland ‘fatigue’ in the goat

Jenkinson¹,

Robertshaw²

1971

The Journal of Physiology

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“…The formol-saline samples were processed on lines similar to those described by Nay and Hayman (12) with slight modifications. The mounting medium used (Table 2).…”

Section: Materiais and Methodsmentioning

confidence: 99%

Some Skin Characteristics of "Snorter" Dwarfism in the Bovine

Bardiaux¹,

Stringam²,

Parker³

1970

Can. J. Anim. Sci.

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Four characteristics, namely, skin thickness, skin thickness differed-significantly-among the the number of sweat gfu"Ji'i.i squJe iintij thlee genoJypes. The dwarfs had the thinnest miter of skin, the uotulme-o} iweat'glands and skin and the normal animals had the thickest ifti O.pift "t'which these-sweui-gf*4. *.r" skin. The heterozygotes showed intermediate i*ui"O' *"ii i""i.iigut"O in the "three geno-values. No significant difierences were reiypi. .t ff"ieio.O cutit".vealed.among-the three genotypes for the -bt ttr" four characteristics studied, only other three characteristics.

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“…Bos indicus cattle, with their higher sweat gland density, tend to have higher sweating rate (Schleger and Turner 1965). The sweat glands of Bos indicus are baggy-shaped, higher in volume (Pan, 1963), and closer to the skin surface (Nay and Hayman 1956) than those of Bos taurus. Comparative studies found that Bos indicus are more dependent upon increased sweating to dissipate excess body heat based on higher sweating rates, lower rectal temperature and lower respiration rate, while Bos taurus are more likely to utilize an increase in respiration rates to dissipate heat based on higher respiration rate and higher rectal temperature (Koatdoke, 2008).…”

Section: Sweatingmentioning

confidence: 99%