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Milk production, health, behavior, and endocrine responses of cows exposed to electrical current during milking.
Year:
1985
Source of publication :
Journal of Dairy Science
Authors :
Sagi, Ram
;
.
Volume :
68
Co-Authors:
Henke Drenkard, D.V.
Gorewit, R.C.
Scott, N.R.
Sagi, R.
Facilitators :
From page:
2694
To page:
2702
(
Total pages:
9
)
Abstract:
Six cows were exposed during milkings to electrical current to assess its effects on behavior, health, milking performance, and endocrine responses. Three treatments (0, 4, and 8 mA) were applied in a changeover design over three consecutive 1-wk periods. A cow received the same current treatment during 14 consecutive milkings, beginning with the evening milking (d 1) and ending with the morning milking (d 8). Treatments began 5 min before milking and continued until milking unit removal. Treatments consisted of 60 Hz square wave current of 5-s duration applied every 30 s from udder to hooves. Milk accumulation curves provided information about milk yields, milking times, peak milk flow rates, and times of peak milk flow. Residual milk yields also were measured. Milk was analyzed for protein, fat, and somatic cells. Blood samples from 60 min before to 60 min after treatment were collected, and oxytocin, prolactin, and cortisol concentrations were measured. Behavioral responses to current decreased with time. Changes of milking performance and milk composition were not significant. Changes of milking related cortisol responses during 8-mA current stimulation were significant. Oxytocin release was delayed during 8-mA treatments. Current treatments did not affect prolactin.
Note:
Related Files :
Animal
animal behavior
article
Blood
cattle
Female
lactation
milk
oxytocin
pregnancy
Support, Non-U.S. Gov't
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More details
DOI :
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
29626
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:48
Scientific Publication
Milk production, health, behavior, and endocrine responses of cows exposed to electrical current during milking.
68
Henke Drenkard, D.V.
Gorewit, R.C.
Scott, N.R.
Sagi, R.
Milk production, health, behavior, and endocrine responses of cows exposed to electrical current during milking.
Six cows were exposed during milkings to electrical current to assess its effects on behavior, health, milking performance, and endocrine responses. Three treatments (0, 4, and 8 mA) were applied in a changeover design over three consecutive 1-wk periods. A cow received the same current treatment during 14 consecutive milkings, beginning with the evening milking (d 1) and ending with the morning milking (d 8). Treatments began 5 min before milking and continued until milking unit removal. Treatments consisted of 60 Hz square wave current of 5-s duration applied every 30 s from udder to hooves. Milk accumulation curves provided information about milk yields, milking times, peak milk flow rates, and times of peak milk flow. Residual milk yields also were measured. Milk was analyzed for protein, fat, and somatic cells. Blood samples from 60 min before to 60 min after treatment were collected, and oxytocin, prolactin, and cortisol concentrations were measured. Behavioral responses to current decreased with time. Changes of milking performance and milk composition were not significant. Changes of milking related cortisol responses during 8-mA current stimulation were significant. Oxytocin release was delayed during 8-mA treatments. Current treatments did not affect prolactin.
Scientific Publication
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