Results 11 to 20 of about 3,254 (217)

Sperm subpopulations in avian species: a comparative study between the rooster (Gallus domesticus) and Guinea fowl (Numida meleagris) [PDF]

open access: yesAsian Journal of Andrology, 2016
The main aims of this research were to study possible differences in objective morphometric sperm characteristics, establish normative sperm morphometry standards, and evaluate the presumed different subpopulation distribution of avian spermatozoa from ...
Manuel García-Herreros
doaj   +2 more sources

Grouping Behaviour and Anti-Predator Responses in the Helmeted Guineafowl Numida meleagris

open access: yesBirds
Little is known about landbird group dynamics in response to predation. Here, we describe the interactions between the Helmeted Guineafowl (Numida meleagris) and its predators regarding the survival advantages grouping behaviour may provide.
Johann H. van Niekerk   +2 more
doaj   +3 more sources

Histological Study of Exocrine part of Pancreas in Laying hens (Gallus gallus domesticus)

open access: yesWasit Journal for Pure Sciences, 2023
                Due to the importance of the pancreas gland and its important role of the digestion process, as well as the economic importance of guinea fowl (Numida meleagris).
Ali Fayadh Bargooth, Anfal Hammed Jasim
doaj   +1 more source

FACTORS AFFECTING PRODUCTIVE PERFORMANCE OF GUINEA FOWL: A REVIEW

open access: yesTropical and Subtropical Agroecosystems, 2022
Background. Guinea fowl (Numida meleagris) is used as an alternative for the production of meat with high nutritional value; however, there are several factors that affect their productive performance. Objective.
Rodrigo Portillo Salgado   +5 more
doaj   +1 more source

Biodiversity and Conservation Challenges in the Alédjo Wildlife Reserve (AWR) in Togo: Insights From Ethnozoological Surveys. [PDF]

open access: yesEcol Evol
The present study analyzes wildlife species use indices and a vulnerability in the Aledjo Wildlife Reserve (AWR) in Togo. The Importance Value‐in‐use Index (IVIUsp) indicates that the most valued species are the patas monkey (Erythrocebus patas), the forest cobra (Naja melanoleuca), and the green mamba (Dendroaspis viridis).
Borozi W, Atakpama W, Assou D, Natta AK.
europepmc   +2 more sources

Nutrient evaluation of different avian species eggs from Minna, Niger State Nigeria

open access: yesAgricultura Tropica et Subtropica, 2023
The proximate composition and mineral contents of eggs from quail (Coturnix japonica) turkey (Meleagris gallopavo) commercial chicken (Gallus domesticus), local chicken (Gallus domesticus) guinea fowl, (Numida meleagris) and duck (Cairina moschata ...
Ossamulu Ifeanyi Famous   +5 more
doaj   +1 more source

Developmental changes in the histological structure of the testes, and testosterone profiles in male guinea fowls (Numida meleagris) [PDF]

open access: yes, 2017
Owing to the paucity of information on the reproductive biology of guinea fowls, a study involving a total of 66 males was conducted, and documented the developmental changes in histological structure of the testes of guinea cocks from hatching until ...
Abdul-Rahman, Iddriss I.   +2 more
core   +1 more source

Tetrameres numida n. sp. (Nematoda: Tetrameridae) from Helmeted guineafowls, Numida meleagris (Linnaeus, 1758), in South Africa

open access: yesOnderstepoort Journal of Veterinary Research, 2007
Tetrameres numida n. sp. from the proventriculus of Helmeted guinea fowls, Numida meleagris, in South Africa is described from eight male and four female specimens. The new species shares some characteristics with other Tetrameres species, but can be
J. Boomker, K. Junker
doaj   +1 more source

Gearing effects of the patella (knee extensor muscle sesamoid) of the helmeted guineafowl during terrestrial locomotion [PDF]

open access: yes, 2017
Human patellae (kneecaps) are thought to act as gears, altering the mechanical advantage of knee extensor muscles during running. Similar sesamoids have evolved in the knee extensor tendon independently in birds, but it is unknown if these also affect ...
Alexander   +30 more
core   +1 more source

Tuning of feedforward control enables stable muscle force-length dynamics after loss of autogenic proprioceptive feedback

open access: yeseLife, 2020
Animals must integrate feedforward, feedback and intrinsic mechanical control mechanisms to maintain stable locomotion. Recent studies of guinea fowl (Numida meleagris) revealed that the distal leg muscles rapidly modulate force and work output to ...
Joanne C Gordon   +3 more
doaj   +1 more source

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