Epizootiology of Plasmodium hermani in Florida: Chronicity of Experimental Infections in Domestic Turkeys and Northern Bobwhites

2004 ◽  
Vol 90 (2) ◽  
pp. 433-435 ◽  
Author(s):  
Martin D. Young ◽  
Jai K. Nayar ◽  
Donald J. Forrester
Keyword(s):  
Northern Bobwhites ◽  
Experimental Infections

THE DESCRIPTION AND LIFE CYCLE OF MARITREMA LARICOLA SP. N. (TREMATODA: MICROPHALLIDAE)

1963 ◽  
Vol 41 (5) ◽  
pp. 881-888 ◽  
Author(s):  
Hilda Lei Ching
Keyword(s):  
Life Cycle ◽  
Experimental Infections ◽  
Size And Morphology ◽  
Hemigrapsus Oregonensis ◽  
Larus Glaucescens

Maritrema laricola sp. n. from the intestine of the glaucous-winged gull, Larus glaucescens, differs from other species in the genus in having an elongate body, small cirrus sac, and short, curved cirrus. The life cycle of the species was followed from sporocyst stage in Littorina scutulata and Littorina sitchana, to the metacercarial stage in Hemigrapsus oregonensis and H. nudus, and to the adult in natural and experimental hosts. In experimental infections of H. oregonensis, the cercariae penetrate and develop in the gills after which they migrate to the haemocoel of the crab and encyst. The metacercariae are fully developed in from 6 to 9 weeks, and similar in size and morphology to natural infections in crabs. Excystment of the metacercariae occurs in the following cultures at 40 °C: 3% pepsin plus 1% HCl, 0.85% saline, and seawater diluted 1:4. Metacercariae live for about 3 days in diluted seawater but do not produce eggs in any of the cultures. Only immature worms were recovered from mice and newly hatched chicks when they were fed the metacercariae, but mature worms were found in natural and experimental infections of the glaucous-winged gull. In a review of the genus Maritrema, the following transfers are made: Maritrema uca Sarkisian, 1957 to the genus Mecynophallus Cable, Connor, and Balling, 1960, and Maritreminoides raminellae Dery, 1958 to Pseudospelotrema Yamaguti, 1939.

Effect of conspecific attraction on the presence of Northern Bobwhites

2020 ◽  
Vol 91 (2) ◽  
pp. 189-198
Author(s):  
Loren Merrill ◽  
Stephen A. Tyndel ◽  
Michael P. Ward ◽  
Thomas J. Benson ◽  
Jinelle H. Sperry
Keyword(s):  
Conspecific Attraction ◽  
Northern Bobwhites

Dietary Selection against Cottonseed Meal by Captive Northern Bobwhites

2018 ◽  
Vol 11 (3) ◽  
pp. 191-195 ◽  
Author(s):  
Amy L. Farthing ◽  
Thomas W. Schwertner ◽  
Heather A. Mathewson ◽  
Kimberly A. Guay
Keyword(s):  
Cottonseed Meal ◽  
Cultural Value ◽  
Feed Consumption ◽  
Published Data ◽  
Northern Bobwhites ◽  
Dietary Preference ◽  
Game Bird ◽  
Selection For ◽  
Whole Cottonseed ◽  
Preference Study

Gossypol, a secondary plant compound found in cotton (Gossypium spp.), is known to be toxic to a variety of animals, particularly monogastric mammals and birds. Because ruminants are resistant to gossypol, whole cottonseed and cottonseed meal have been used as a feed supplement for many decades. Concerns over gossypol toxicity arise because of its presence in cottonseed products, particularly livestock and wildlife feed. The concentration of cottonseed in the environment near livestock and wildlife feeding stations presents the possibility that it may be ingested in significant amounts by non-target wild animals, resulting in inadvertent gossypol dosing. A species of significant economic and cultural value is the Northern Bobwhite (Colinus virginianus). However, there are no published data regarding if Northern Bobwhites would consume cottonseed meal given the opportunity. We assessed selection for or against cottonseed meal by performing a dietary preference study. Birds (n =120) were given the choice between commercial game bird feed, scratch grains, and cottonseed meal containing 0.74% total gossypol. We measured feed consumption for five days. The birds’ diet consisted of 51.74% game bird feed, 37.72% scratch grains, and 10.54% cottonseed meal, and percentages varied significantly among all feed types (P≤0.001, n =360). We concluded that Northern Bobwhites selected against the cottonseed meal in favour of the game bird feed first and the scratch grains second. Our results suggest that given the choice, Northern Bobwhites will select against cottonseed meal if other feed choices are available.

Effects of experimental infections with different doses of Anguillicola crassus (Nematoda, Dracunculoidea) on European eel (Anguilla anguilla)

Aquaculture ◽  
1996 ◽  
Vol 141 (1-2) ◽  
pp. 41-57 ◽  
Author(s):  
O.L.M. Haenen ◽  
T.A.M. van Wijngaarden ◽  
M.H.T. van der Heijden ◽  
J. Höglund ◽  
J.B.J.W. Cornelissen ◽  
...  
Keyword(s):  
Anguilla Anguilla ◽  
European Eel ◽  
Experimental Infections ◽  
Anguillicola Crassus ◽  
Different Doses

Experimental Infections with Mycobacterium intracellulare

1981 ◽  
Vol 3 (5) ◽  
pp. 973-978 ◽  
Author(s):  
P. R. Gangadharam ◽  
P. F. Pratt ◽  
P. T. Davidson
Keyword(s):  
Mycobacterium Intracellulare ◽  
Experimental Infections

Reproduction of Northern Bobwhites in Semiarid Environments

1988 ◽  
Vol 52 (1) ◽  
pp. 144 ◽  
Author(s):  
Fred S. Guthery ◽  
Nancy E. Koerth ◽  
David S. Smith
Keyword(s):  
Northern Bobwhites ◽  
Semiarid Environments
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