نتایج جستجو برای: ostrich chicks

تعداد نتایج: 10790  

2005
DAVID MARTÍN-GÁLVEZ JAVIER PALOMINO

The common cuckoo, Cuculus canorus, is a brood parasite that monopolizes parental care of its host species: soon after hatching, the chicks remove the host offspring. Although cuckoo chicks trick their foster parents into providing enough food, it is unknown whether cuckoo begging behaviour represents an advantage over that of the host chicks in a hypothetical competitive scenario. We studied t...

2015
Sergiu Usurelu Vanessa Bettencourt Gina Melo

INTRODUCTION Ostriches typically avoid humans in the wild, since they correctly assess humans as potential predators, and, if approached, often run away. However, ostriches may turn aggressive rather than run when threatened, especially when cornered, and may also attack when they feel the need to defend their offspring or territories. PRESENTATION OF CASE A 71-year-old male patient presented...

Journal: :Ecozon@ 2023

A poem in six parts tracing the natural history of fiddleheads, also known as Ostrich ferns, Onoclea struthiopteris or Matteucia struthiopteris: a plant native to northeastern North America (Turtle Island) and traditional food.

2015
Mahendra Kumar Trivedi Alice Branton Dahryn Trivedi Gopal Nayak Sambhu Charan Mondal Snehasis Jana

The current study was attempted to investigate the effect of Mr. Trivedi’s biofield energy treated energized water on chicken. The total 4200 chicks were equally divided into two groups i.e. control and treated. The biofield treated energized water was provided to the treated chicks, while the control chicks were drunk with standard drinking water. During the experiment the parameters such as m...

Journal: :Physiology & behavior 2003
K L Krijgsveld G H Visser S Daan

We examined whether low ambient temperatures influence foraging behavior of precocial Japanese quail chicks and alter the balance between investment in growth and thermogenic function. To test this, one group of chicks was exposed to 7 degrees C and one group to 24 degrees C during foraging throughout the developmental stage. Chicks adapted well to the temperatures through a high flexibility in...

Journal: :Bioinspiration & biomimetics 2011
E de Margerie S Lumineau C Houdelier M-A Richard Yris

Quail chicks encountered an autonomous mobile robot during their early development. The robot incorporated a heat source that stimulated following of chicks. The spatial behaviour of grown-up chicks was tested in an exploration test and a detour test. Chicks that grew with the mobile robot exhibited better spatial abilities than chicks grown with a static heat source. We discuss these results i...

Journal: :Poultry science 2000
Y C Li D R Ledoux A J Bermudez K L Fritsche G E Rottinghaust

Three trials were conducted to evaluate the effect of moniliformin (M) on performance and immune function in chicks. Day-old chicks were randomly assigned to four dietary treatments (0, 50, 75, or 100 mg M/kg diet). In Trial 1, chicks were placed on treatments for 3 wk and were injected intravenously with 4.6 x 10(6) Escherichia coli on Day 21. Blood samples were collected at 60, 120, and 180 m...

Journal: :Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie 1986

Journal: :Animal Reproduction Science 2016

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