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Author |
Bannikov, A.G. |
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Title |
Recent status of the wild ass in Mongolia |
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Journal Article |
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Year |
1975 |
Publication |
IUCN Bulletin |
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Volume |
6 |
Issue |
4 |
Pages |
16 |
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Equine Behaviour @ team @ |
Serial |
2219 |
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Author |
Belonje, P.C.; van Niekerk, C.H. |
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Title |
A review of the influence of nutrition upon the oestrous cycle and early pregnancy in the mare |
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Journal Article |
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Year |
1975 |
Publication |
Journal of Reproduction and Fertility. Supplement |
Abbreviated Journal |
J Reprod Fertil Suppl |
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Volume |
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Issue |
23 |
Pages |
167-169 |
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Keywords |
Animals; Body Weight; *Diet; *Estrus; Female; Fertility; Fetal Resorption/prevention & control; Horses/*physiology; Pregnancy |
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Abstract |
Attention is drawn to the beneficial effect of improved nutrition during winter and early spring on the ovarian activity of mares. Furthermore, the necessity of an adequate plane of nutrition during early pregnancy to prevent embryonic resorption is stressed. |
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0449-3087 |
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Notes |
PMID:1060772 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
2225 |
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Author |
Mitchell, D.; Allen, W. R. |
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Title |
Observations on reproductive performance in the yearling mare |
Type |
Journal Article |
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Year |
1975 |
Publication |
Journal of Reproduction and Fertility |
Abbreviated Journal |
J. Reprod. Fert., |
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Volume |
(Suppl. 23) |
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Pages |
531-536 |
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Reproductive performance was studied in 137 yearling mares run with stallions in small groups for 3 months between June and August in 1968 to 1971 (four breeding seasons). Pregnancy diagnosis by repeated rectal palpation and qualitative tests for PMSG, showed that ninety-five mares conceived of which forty-four aborted spontaneously between days 30 and 160 of gestation. Laboratory examination of twenty-one aborted fetuses failed to show any infectious agents. Serial quantitative and qualitative tests for PMSG in aborting animals gave results similar to those observed in mares with normal pregnancies. Plasma progestagen assays showed marked individual variations although the loss of the conceptus was always associated with a drop in progestagen level. The high incidence of early pregnancy loss in these pubertal mares may also be related to immaturity, inadequate nutrition and physical stress. |
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Equine Behaviour @ team @ |
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2378 |
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Author |
Sivak, J.G.; Allen, D.B. |
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Title |
An evaluation of the “ramp” retina of the horse eye |
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Journal Article |
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Year |
1975 |
Publication |
Vision Research |
Abbreviated Journal |
Vision Res |
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Volume |
15 |
Issue |
12 |
Pages |
1353-1356 |
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Keywords |
Accommodation, Ocular; Animals; Aqueous Humor/physiology; Cornea/physiology; Freezing; Horses/*anatomy & histology; Lens, Crystalline/anatomy & histology/physiology; Refraction, Ocular; Retina/*anatomy & histology; Vitreous Body/physiology |
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Abstract |
Using a rapid freezing and sectioning technique, the distance between the lens and retina of the horse eye was measured. There is no indication of a ramp retina that could serve accommodation. The pupil axis of the eye coincides with the maximum lens to retina distance. The changes in the lens-retina distance are greater below the axis than above it. Calculations were made of refractive power of the horse eye from measurements of curvature and refractive indices of the ocular tissues. These calculations agree both qualitatively and quantitatively with retinoscopic measurements on live horses. Both show that the refractive state shifts in the direction of hyperopia above and below the axis and that this shift is greater below the axis than above it. Some dynamic accommodative ability in the living eye was observed. |
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0042-6989 |
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PMID:1210017 |
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Call Number |
Equine Behaviour @ team @ |
Serial |
3647 |
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Author |
Zimen, E. |
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Title |
Social dynamics of the wolf pack |
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Book Chapter |
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Year |
1975 |
Publication |
The wild canids |
Abbreviated Journal |
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Issue |
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Pages |
336-362 |
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Publisher |
Van Nostrand Reinhold |
Place of Publication |
New York |
Editor |
Fox, M.W. |
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Call Number |
Equine Behaviour @ team @ |
Serial |
5231 |
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