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Author Zentall, T.R; Hogan, D.E.
Title Key pecking in pigeons produced by pairing keylight with inaccessible grain Type Journal Article
Year 1975 Publication Abbreviated Journal J Exp Anal Behav
Volume 23 Issue 2 Pages (down) 199-206
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Abstract In Experiment I, keylight was paired with inaccessible grain delivery (under two conditions of keylight intensity) to determine if autoshaping would occur in the absence of primary reinforcement. In Experiment II, the procedure was repeated with accessible grain, for comparison. In Experiment III, the procedures were repeated with explicitly unpaired presentations of keylight and either inaccessible or accessible grain. The results indicated that key pecking occurred as quickly in the presence of keylight pairings with inaccessible grain as with accessible grain, though (except for one bird) key pecking was not maintained with inaccessible grain. Furthermore, compared to the dim keylight, the bright keylight greatly suppressed key pecking when paired with inaccessible grain, and reduced the rate of key pecking when paired with accessible grain. Little key pecking occurred in groups exposed to explicitly unpaired presentations of keylight (whether bright or dim) and grain (whether accessible or inaccessible). When the birds in Experiment III were retested with explicitly paired presentations of keylight and grain, little key pecking was observed, suggesting suppressive effects of prior explicitly unpaired presentations. It is suggested that the effects of key-brightness manipulation were produced by the association of grain with cues other than the response key, or by distraction produced by partial illumination of the grain hopper.
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ISSN 0022-5002 ISBN Medium
Area Expedition Conference
Notes PMID:16811840 Approved no
Call Number refbase @ user @ Serial 273
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Author Belonje, P.C.; van Niekerk, C.H.
Title A review of the influence of nutrition upon the oestrous cycle and early pregnancy in the mare Type Journal Article
Year 1975 Publication Journal of Reproduction and Fertility. Supplement Abbreviated Journal J Reprod Fertil Suppl
Volume Issue 23 Pages (down) 167-169
Keywords Animals; Body Weight; *Diet; *Estrus; Female; Fertility; Fetal Resorption/prevention & control; Horses/*physiology; Pregnancy
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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ISSN 0449-3087 ISBN Medium
Area Expedition Conference
Notes PMID:1060772 Approved no
Call Number Equine Behaviour @ team @ Serial 2225
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Author Leuthold W, L.B.
Title Temporal patterns of reproduction in ungulates of Tsavo East National Park Kenya Type Journal Article
Year 1975 Publication Abbreviated Journal E Afr Wildl J
Volume 13 Issue Pages (down) 159-170
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Notes from Professor Hans Klingels Equine Reference List Approved no
Call Number Serial 1345
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Author Nelson, W.A.; Keirans, J.E.; Bell, J.F.; Clifford, C.M.
Title Host-ectoparasite relationships Type Journal Article
Year 1975 Publication Journal of Medical Entomology Abbreviated Journal J Med Entomol
Volume 12 Issue 2 Pages (down) 143-166
Keywords Animal Nutrition Physiology; Animals; Anoplura/physiology; *Arthropods; Birds/parasitology; Chickens/parasitology; Dermacentor/parasitology; Diptera; Ecology; Feeding Behavior; Female; Horses/parasitology; Humans; Male; Mallophaga/physiology; Mice/parasitology; Mites/physiology; Reproduction; Sarcoptes scabiei/physiology; Sheep/parasitology; Skin/parasitology; Ticks/physiology; Toxins, Biological/toxicity; Trombiculidae/physiology
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Language English Summary Language Original Title
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ISSN 0022-2585 ISBN Medium
Area Expedition Conference
Notes PMID:808617 Approved no
Call Number Equine Behaviour @ team @ Serial 2704
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Author Smuts Gl,
Title Home range sizes for Burchell's Zebra, Equus burchelli antiquorum from the Krüger National Park Type Journal Article
Year 1975 Publication Abbreviated Journal Koedoe
Volume 18 Issue Pages (down) 139-146
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Notes from Professor Hans Klingels Equine Reference List Approved no
Call Number Serial 1612
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Author Pickett Bw, V.J.
Title Abnormalities of mating behaviour in domestic stallions Type Journal Article
Year 1975 Publication Abbreviated Journal J Reprod Fert Suppl
Volume 23 Issue Pages (down) 129-134
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Notes from Professor Hans Klingels Equine Reference List Approved no
Call Number Serial 1470
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Author Eisenmann V,
Title Nouvelles interpretations des restes d`équides de Nihowan Equus teilhardi Nov.Sp Type Journal Article
Year 1975 Publication Abbreviated Journal Geobios
Volume 8 Issue Pages (down) 125-134
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Notes from Professor Hans Klingels Equine Reference List Approved no
Call Number Serial 1047
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Author Jensen, G.D.; Gordon, B.N.; Wolfheim, J.
Title Nursing behavior in infant monkeys: a sequence analysis Type Journal Article
Year 1975 Publication Behaviour Abbreviated Journal Behaviour
Volume 55 Issue 1-2 Pages (down) 115-127
Keywords Animals; Dependency (Psychology); *Feeding Behavior; Female; *Macaca; Male; Sensory Deprivation; Social Behavior; Spatial Behavior
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Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
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ISSN 0005-7959 ISBN Medium
Area Expedition Conference
Notes PMID:1191212 Approved no
Call Number Equine Behaviour @ team @ Serial 4153
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Author Imesh Gd, S.G.
Title Gross and microscopic observations of ovarian abnormalities from five Burchell's zebra Type Journal Article
Year 1975 Publication Abbreviated Journal Onderstepoort J vet Res
Volume 42 Issue Pages (down) 109-116
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Notes from Professor Hans Klingels Equine Reference List Approved no
Call Number Serial 1213
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Author Bergmann, H.H.; Klaus, S.; Muller, F.; Wiesner, J.
Title [Individuality and type specificity in the songs of a population of hazel grouse (Bonasa bonasia bonasia L., Tetraoninae, Phasianidae)] Type Journal Article
Year 1975 Publication Behaviour Abbreviated Journal Behaviour
Volume 55 Issue 1-2 Pages (down) 94-114
Keywords Animals; *Birds; Female; *Individuality; Male; Time Factors; *Vocalization, Animal
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Language German Summary Language Original Title Individualitat und Artspezifitat in den Gesangsstrophen einer Population des Haselhuhns (Bonasa bonasia bonasia L., Tetraoninae, Phasianidae)
Series Editor Series Title Abbreviated Series Title
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ISSN 0005-7959 ISBN Medium
Area Expedition Conference
Notes PMID:1191217 Approved no
Call Number Equine Behaviour @ team @ Serial 4152
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