A marking device for detecting oestrous activity of cattle

Lang, D. R.; Hight, G. K.; Uljee, A. E.; Young, J. R.

doi:10.1080/00288233.1968.10422430

Cited by 23 publications

(3 citation statements)

References 2 publications

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“…The cows were run as two groups, each with a vasectomized bull fitted with chinball marking harness (Lang, Hight, Uljee & Young, 1968), and observed every 4 h for evidence of oestrus. At each observation, indications of oestrus from fresh paint marks on cows' backs were confirmed by direct observation of cows standing for mounting by the bull.…”

Section: Methodsmentioning

confidence: 99%

Concentrations of LH, oestradiol-17 and progesterone in the peripheral plasma of swamp buffalo COWS (Bubalus bubalis) around the time of oestrus

Avenell¹,

Saepudin²,

Fletcher³

1985

Reproduction

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Peripheral plasma concentrations of LH, oestradiol-17\g=b\ and progesterone were measured in 13 mature swamp buffalo cows at 4-h intervals from 36\p=n-\40h before until 36\p=n-\40h after the onset of oestrus. Mean LH concentrations increased sharply to a peak of 35 ng/ml and returned to basal levels of 5 ng/ml within a 12-h period beginning soon after the onset of oestrus. Mean oestradiol-17\g=b\ concentrations were within the range 9\p=n-\13pg/ml from 36\p=n-\40h before until 12\p=n-\16h after the onset of oestrus, and within the range 7\p=n-\9 pg/ml thereafter. Progesterone concentrations remained around 0\m=.\1ng/ml throughout the sampling period. There were no significant differences in hormone concentrations or changes between cows that conceived and those that did not conceive to artificial insemination 12\p=n-\24h after onset of oestrus.

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Section: Methodsmentioning

confidence: 99%

Concentrations of LH, oestradiol-17 and progesterone in the peripheral plasma of swamp buffalo COWS (Bubalus bubalis) around the time of oestrus

Avenell¹,

Saepudin²,

Fletcher³

1985

Reproduction

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“…(A) Control-normal station management: No hormone treatment was used and animals were run with vasectomised bulls each of which was fitted with a chinball harness (Lang et al 1968). Freshly marked animals were drafted out and inseminated each morning.…”

Section: Treatmentsmentioning

confidence: 99%

Comparison of techniques for synchronisation of oestrus and subsequent fertility in beef cattle

Smith¹,

Kaltenbach²

1990

New Zealand Journal of Agricultural Research

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One hundred and seventy-eight heifers and 275 suckling cows were allocated to either a control (untreated) group or to one of three groups treated to synchronise oestrus. The treatments were eitheraprogestagen ear implant (SMB),aprogesterone intravaginal device (pRIO + PMSG), or two injections ofaprostaglandin analogue (pG). Progestagen treatments effectively synchronised oestrus with similar numbers ofanimals exhibiting oestrus within 2 days of treatment, as were observed over 21 days in the control group. The prostaglandin treatment was much less effective (control 79%, 5MB 72%, PRID + PMSG 71%, andPG 45%). Conception to timed insemination in the 5MB-and PGsynchronised heifers was lower than that obtained in the other treatments (control 33%, 5MB 17%,PRID + PMSG 33%, and PG 25%). In the suckling cows the conception rates of the progestagen-treated groups (48 and 50%) were better than that following PG (20%) with the controls (37%) intermediate. Plasma progesterone levels indicated that anoestrus was not the majorreason for the poor performance of the PGtreated cows. An additional group of 36 cows treated with progestagen and PMSG before Day 30 postpartum indicated some advantage from this procedure in reducing the interval from calving to A90039 Received 26 March 1990; accepted 20 June 1990 conception. Techniques based on the administration ofprogestagens appear to offer a practical means of synchronisingoestrus for artificial insemination (AI) in suckling beef cows.

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“…entweder kranial oder kaudal des Scrotums. Verengung des Ostium praeputiale entweder durch eine Tabaksbeutelnaht oder durch Befestigung eines kommerziell erhAltlichen, am Praputium zu befestigenden Gummischlauches, dem sogenannten "Pen-O-Block".Um die besprungenen Tiere zu markieren, wird dem Suchbullen ein Farbhalfter angelegt, so dan sich unter dem Kinn ein Farbkissen oder ein einem gronen Kugelschreiber gleichender Farbschreiber ("chin-ball") befindet(Lang et al, 1968) (Abb.2). Eine Kuh, die seitlich oder am hinteren Korperbereich markiert ist, wurde vom Suchbullen umworben, gestattete aber den Aufsprung nicht…”

unclassified

Die Brunstdiagnose beim Rind

Holtz¹,

Meinhardt²

1993

Reprod Domestic Animals

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A marking device for detecting oestrous activity of cattle

Abstract: Development of a marking device for recording oestrous activity of cattle. and particularly suitable for extensive grazing (range) conditions. is described. Its design and operation and testing of marking substances are discussed.

Cited by 23 publications

References 2 publications

Concentrations of LH, oestradiol-17 and progesterone in the peripheral plasma of swamp buffalo COWS (Bubalus bubalis) around the time of oestrus

Concentrations of LH, oestradiol-17 and progesterone in the peripheral plasma of swamp buffalo COWS (Bubalus bubalis) around the time of oestrus

Comparison of techniques for synchronisation of oestrus and subsequent fertility in beef cattle

Die Brunstdiagnose beim Rind

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