Effects of supplementing pregnant heifers with methionine or melatonin on the anatomy and other characteristics of their lateral hind claws

H Galbraith; M Rae; T Omand; K A K Hendry; Christopher Harold Knight; C J Wilde

Effects of supplementing pregnant heifers with methionine or melatonin on the anatomy and other characteristics of their lateral hind claws

H Galbraith, M Rae, T Omand, K A K Hendry, Christopher Harold Knight, C J Wilde

7 Citations (Scopus)

Abstract

Three groups of four primiparous Holstein-Friesian heifers were fed throughout pregnancy either a control diet or that diet supplemented with either 5 to 6 g per day of rumen-protected intestinally available methionine or 25 mg melatonin. They were euthanased three days after calving. The dietary supplements had no effect on the impression hardness or the concentrations of cysteine and methionine in samples of claw horn collected from a range of sites, or on the areas of erosion in the sole and heel. Significant differences were recorded for the hardness of the horn in the order wall >sole >heel. These differences were associated with higher concentrations of cysteine and lower concentrations of methionine in samples of horn from the dorsal wall than in samples from the prebulbar region of the sole. There were no significant differences attributable to the dietary supplements in the soft tissue anatomy of the solear dermis and epidermis.

Original language	English
Journal	Veterinary Record
Volume	158
Issue number	1
Pages (from-to)	21
ISSN	0042-4900
Publication status	Published - 7 Jan 2006

Keywords

Animal Feed
Animals
Cattle
Dietary Supplements
Female
Hardness
Hoof and Claw
Melatonin
Methionine
Postpartum Period
Pregnancy
Pregnancy, Animal

Cite this

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title = "Effects of supplementing pregnant heifers with methionine or melatonin on the anatomy and other characteristics of their lateral hind claws",

abstract = "Three groups of four primiparous Holstein-Friesian heifers were fed throughout pregnancy either a control diet or that diet supplemented with either 5 to 6 g per day of rumen-protected intestinally available methionine or 25 mg melatonin. They were euthanased three days after calving. The dietary supplements had no effect on the impression hardness or the concentrations of cysteine and methionine in samples of claw horn collected from a range of sites, or on the areas of erosion in the sole and heel. Significant differences were recorded for the hardness of the horn in the order wall >sole >heel. These differences were associated with higher concentrations of cysteine and lower concentrations of methionine in samples of horn from the dorsal wall than in samples from the prebulbar region of the sole. There were no significant differences attributable to the dietary supplements in the soft tissue anatomy of the solear dermis and epidermis.",

keywords = "Animal Feed, Animals, Cattle, Dietary Supplements, Female, Hardness, Hoof and Claw, Melatonin, Methionine, Postpartum Period, Pregnancy, Pregnancy, Animal",

author = "H Galbraith and M Rae and T Omand and Hendry, {K A K} and Knight, {Christopher Harold} and Wilde, {C J}",

year = "2006",

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language = "English",

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pages = "21",

journal = "Veterinary Record",

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TY - JOUR

T1 - Effects of supplementing pregnant heifers with methionine or melatonin on the anatomy and other characteristics of their lateral hind claws

AU - Galbraith, H

AU - Rae, M

AU - Omand, T

AU - Hendry, K A K

AU - Knight, Christopher Harold

AU - Wilde, C J

PY - 2006/1/7

Y1 - 2006/1/7

N2 - Three groups of four primiparous Holstein-Friesian heifers were fed throughout pregnancy either a control diet or that diet supplemented with either 5 to 6 g per day of rumen-protected intestinally available methionine or 25 mg melatonin. They were euthanased three days after calving. The dietary supplements had no effect on the impression hardness or the concentrations of cysteine and methionine in samples of claw horn collected from a range of sites, or on the areas of erosion in the sole and heel. Significant differences were recorded for the hardness of the horn in the order wall >sole >heel. These differences were associated with higher concentrations of cysteine and lower concentrations of methionine in samples of horn from the dorsal wall than in samples from the prebulbar region of the sole. There were no significant differences attributable to the dietary supplements in the soft tissue anatomy of the solear dermis and epidermis.

AB - Three groups of four primiparous Holstein-Friesian heifers were fed throughout pregnancy either a control diet or that diet supplemented with either 5 to 6 g per day of rumen-protected intestinally available methionine or 25 mg melatonin. They were euthanased three days after calving. The dietary supplements had no effect on the impression hardness or the concentrations of cysteine and methionine in samples of claw horn collected from a range of sites, or on the areas of erosion in the sole and heel. Significant differences were recorded for the hardness of the horn in the order wall >sole >heel. These differences were associated with higher concentrations of cysteine and lower concentrations of methionine in samples of horn from the dorsal wall than in samples from the prebulbar region of the sole. There were no significant differences attributable to the dietary supplements in the soft tissue anatomy of the solear dermis and epidermis.

KW - Animal Feed

KW - Animals

KW - Cattle

KW - Dietary Supplements

KW - Female

KW - Hardness

KW - Hoof and Claw

KW - Melatonin

KW - Methionine

KW - Postpartum Period

KW - Pregnancy

KW - Pregnancy, Animal

M3 - Journal article

C2 - 16400099

SN - 0042-4900

VL - 158

SP - 21

JO - Veterinary Record

JF - Veterinary Record

IS - 1

ER -

Effects of supplementing pregnant heifers with methionine or melatonin on the anatomy and other characteristics of their lateral hind claws

Abstract

Keywords

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