A comparison of the metabolism of the abortifacient compounds from Ponderosa pine needles in conditioned versus naïve cattle1
نویسنده
چکیده
© 2012 American Society of Animal Science. All rights reserved. J. Anim. Sci. 2012.90:4611–4617 doi:10.2527/jas2012-5232
منابع مشابه
Abortifacient response and plasma vasoconstrictive activity after feeding needles from ponderosa pine trees to cattle and sheep.
Consumption of needles from Pinus ponderosa (PN) during late pregnancy causes cattle, but not sheep, to abort. This differential response may be caused by differences in ruminal microflora or postabsorptive metabolism. Pine needles were fed (2 kg.cow-1.d-1 or .4 kg.ewe-1.d-1) mixed with corn silage. In Exp. 1, cows were assigned at 250 d of pregnancy to feed treatments (T): 1) silage, 2) PN+sil...
متن کاملWestern Juniper-Induced Abortions in Beef Cattle
It has been known for many years that ponderosa pine needles can induce late-term abortions in cattle. Labdane acids including isocupressic acid (ICA) and agathic acid are responsible for initiating abortions. Recent research demonstrated that a number of trees including many species of pine, juniper, and cedar contain either isocupressic acid or agathic acid at concentrations sufficient to be ...
متن کاملEndocrine responses in cows fed Ponderosa pine needles and the effects of stress, corpus luteum regression, progestin, and ketoprofen.
Pregnant cows were fed pine needles (PN, 2 kg.cow-1.d-1) mixed with the diet to determine factors that affect abortion response. In Exp. 1, treatments were used to determine the effects of experimental stress and pelleting of pine needles. Pelleting needles and experimental stress delayed abortion response (P < .01). Stress-induced delay was associated with abnormal patterns of progesterone and...
متن کاملMolecular Mechanism of Isocupressic Acid Supresses MA-10 Cell Steroidogenesis
Consumption of ponderosa pine needles causes late-term abortions in cattle and is a serious poisonous plant problem in foothill and mountain rangelands. Isocupressic acid (IA) is the component of pine needles responsible for the abortifacient effect, its abortifacient effect may be due to inhibition of steroidogenesis. To investigate the more detail molecular mechanism, we used MA-10 cell, whic...
متن کاملAntifungal activity of the essential oils from some species of the genus Pinus.
The chemical composition of the essential oils from the needles of Pinus ponderosa (north american pine), P. resinosa (red pine) and P. strobus (eastern white pine) has been determined by GC/MS (FID). The essential oils from P. resinosa and P. ponderosa in comparison to P. strobus have been characterized by the higher content of beta-pinene (42.4%, 45.7% and 7.9% respectively). On the other han...
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