Systematic factors that affect ostrich egg incubation traits

نویسندگان

  • Z. Brand
  • S.W.P. Cloete
  • C. R. Brown
  • I. A. Malecki
چکیده

Z. Brand, S.W.P. Cloete, C.R. Brown and I.A. Malecki 1 Department of Animal Sciences, University of Stellenbosch, Private Bag X1, Matieland 7602, South Africa 2 Institute for Animal Production: Oudtshoorn, PO Box 313, Oudtshoorn 6620, South Africa 3 Institute for Animal Production: Elsenburg, Private Bag X1, Elsenburg 7607, South Africa 4 Institute of Science & the Environment, University of Worcester, Henwick Grove, Worcester, WR2 6AJ, UK 5 School of Animal Biology, Faculty of Natural and Agricultural Science, University of Western Australia, Crawley WA, 6009, Australia

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Morphologic Evaluation of the Fertilized and Unfertilized Ostrich Egg during the Early Stages of Development (MRI Analysis)

Introduction: The magnetic resonance imaging (MRI) technique permits to monitor the development of the embryo in vivo without causing any developmental defects. Although increasing application of MRI imaging are predicted in veterinary sciences, there is little information available about MRI studies of avian embryos and their eggs. The objective of the present study was to evaluate the o...

متن کامل

Influence of incubation management on pipping position, hatching ability and survival of ostrich chicks

Despite numerous studies, the effect of artificial incubation on the hatchability and survival of nearterm ostrich chicks is still not well understood. Records from 13 975 eggs with embryos of 35 days and older, artificially incubated between 2006 and 2008, were analysed to determine the potential effect of pipping position upon the hatchability, and the subsequent survival of ostrich chicks. A...

متن کامل

Morphological Description of the Developing Ostrich Embryo: a Tool for Embryonic Age Estimation

The ostrich (Struthio camelus), the largest living bird, is farmed intensively worldwide. However, despite the importance of understanding embryonic development in the ostrich for successful egg incubation practice, little is known about it. Using the chicken model for scaling is currently a common practice in estimating age in ostrich embryos. The aim of this study was to compare the embryonic...

متن کامل

Gas exchange of the ostrich embryo during peak metabolism in relation to incubator design

Oxygen (O2) consumption and carbon dioxide (CO2) excretion of ostrich embryos were studied on 45 ostrich eggs in various stages of development. A closed respirometry system was used for eggs subjected to ≤ 10 days of incubation, while an open flow system was used for older eggs. A total of 102 measurements were made and repeat measurements on the same egg were treated as independent during stat...

متن کامل

Performance of Ostriches (struthio Camelus) Fed on Different Levels of Protein and Energy under Hot Climate By

The effects of five levels of dietary protein and energy on ostrich performance during hot season were evaluated in this study. Five males and 10 females of healthy mature ostriches (Struthio camelus) were randomly assigned equally into five nutritional groups A, B, C, D and E, each of 1 male and 2 females. Birds were fed (16% protein +2800 kcal) , (17% protein + 2900 kcal ) , (18% protein + 30...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2008