التفاصيل البيبلوغرافية
| العنوان: |
Analytical and nutritional evaluation of rye grain in diets for growing pigs |
| المؤلفون: |
Schmitz, Klara Theresa |
| المساهمون: |
Südekum, Karl-Heinz, Visscher, Christian |
| بيانات النشر: |
Universitäts- und Landesbibliothek Bonn |
| سنة النشر: |
2024 |
| المجموعة: |
bonndoc - The Repository of the University of Bonn |
| مصطلحات موضوعية: |
Faseranalytik, Schweineernährung, Roggen, Rapsextratkionsschrot, Verdaulichkeit, Phytase, pig nutrition, rye, rapeseed meal, fibre analysis, digestibility, ddc:630 |
| الوصف: |
Climate change and increasing consumer awareness of environmental and animal welfare issues are constantly challenging the animal nutrition sector to adapt and find improved solutions that are resource efficient, meet the requirements of pigs and promote animal welfare. One such approach is the use of regional feedstuffs such as rye and rapeseed meal to feed pigs. In the past, both feedstuffs were rarely used in conventional pig feeds due to low yields and high concentrations of antinutritive substances. Further development of the varieties; more recent scientific findings; as well as their sensible use from economic, agronomic and animal nutrition points of view require a re-evaluation of rye grain (hybrid rye) and rapeseed meal. For this purpose, compound feeds made from wheat or rye grain were combined with soybean or rapeseed meal and compared regarding several research questions. The digestibility of phosphorus (P) with and without the supplementation of phytase in the aforementioned compound feeds was investigated, which is important on the one hand because of the finite nature of P and on the other hand because of the negative environmental impact of a surplus. The type of cereal grain had no influence on the P digestibility of the compound feeds; consequently, the high concentration of intrinsic phytase in rye compared with wheat had no influence on P digestibility. In the compound feeds with soybean or rapeseed meal, phytase supplementation produced the same P digestibility: 70.2% and 69.5%, respectively. Rye and rapeseed meal shifted nitrogen excretion from urine to faeces due to the higher fibre concentration compared with wheat and soybean meal, thus contributing to the reduction in ammonia release from manure. The metabolisable energy content in the compound feeds was = 14.2 MJ/kg dry matter, which is suitable for growing pigs. Rye grain and rapeseed meal are both characterised by a high fibre content. Rye has a relatively high content of soluble dietary fibre, to which positive nutritional and ... |
| نوع الوثيقة: |
doctoral or postdoctoral thesis |
| وصف الملف: |
application/pdf |
| اللغة: |
English |
| Relation: |
info:eu-repo/semantics/altIdentifier/urn/urn:nbn:de:hbz:5-74762; https://hdl.handle.net/20.500.11811/11340 |
| الاتاحة: |
https://hdl.handle.net/20.500.11811/11340 |
| Rights: |
Namensnennung-Nicht kommerziell 4.0 International ; http://creativecommons.org/licenses/by-nc/4.0/ ; openAccess |
| رقم الانضمام: |
edsbas.69C5F348 |
| قاعدة البيانات: |
BASE |