Academic Journal
Feather and skin development of ostriches Struthio camelus
| العنوان: | Feather and skin development of ostriches Struthio camelus |
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| المؤلفون: | Brand, Tertius S., Kritzinger, Werné J., van der Merwe, Daniel A., Muller, Anieka, Hoffman, Louw C., Niemann, Gert J. |
| بيانات النشر: | South African Veterinary Association |
| سنة النشر: | 2018 |
| المجموعة: | The University of Queensland: UQ eSpace |
| مصطلحات موضوعية: | General Veterinary, General Medicine, 3400 Veterinary |
| الوصف: | Information on feather and skin growth is important for the development of mathematical optimisation nutritional models for ostriches. Ostriches (n = 65) were subjected to a four-stage formulated growth diet programme (pre-starter, starter, grower and finisher), with declining protein and energy content. Nine birds were weighed, stunned, exsanguinated, defeathered, skinned and eviscerated at 1, 54, 84, 104, 115, 132 and 287 days of age. Feathers from four pre-selected locations on the body were harvested and weighed. The wet skin weight, wet unstretched skin size and wet unstretched crown size were measured at each slaughter stage. The live weight, feather and skin yields of the birds increased with age at slaughter, as did feather shaft diameter. Prediction models were developed to estimate the yield of the skin in terms of live weight and of empty body protein weight to aid in diet formulation. The allometry of feather growth was determined from total feather weight, as the maturation rates of the feathers differ from that of the ostrich body. Results from this study will aid in setting up a mathematical optimisation nutritional model for ostriches. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 2224-9435 1019-9128 |
| Relation: | orcid:0000-0003-2736-1933; Not set |
| الاتاحة: | https://espace.library.uq.edu.au/view/UQ:f6a7e47 |
| رقم الانضمام: | edsbas.6A1361A0 |
| قاعدة البيانات: | BASE |
Full Text Finder | تدمد: | 22249435 10199128 |
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