Reşit ALDEMİR, Nuriye Tuğba BİNGÖL, Mehmet Akif KARSLI, İsmail AKÇA

Determination of nutrient content and digestibility characteristics of Prangos ferulacea (L.) on grazing lands of Eastern Anatolia

The aim of this study was to compare nutrient content, and in situ protein and organic matter degradation kinetics of Prangos ferulacea (L.) (locally called helis), a naturally growing plant on the top of Mount Artos, with those of alfalfa. P. ferulacea plants used in the study were collected from three different parts of Mount Artos in Van Province over two years. While organic matter content and in vitro organic matter digestibility of P. ferulacea were significantly higher, neutral detergent fiber, acid detergent fiber, and acid detergent insoluble nitrogen contents were significantly lower compared with those of alfalfa (P < 0.01). In general, in situ dry matter, and organic matter and crude protein degradability of P. ferulacea were significantly higher compared with those of alfalfa starting from 6 h of incubation (P < 0.05). Organic matter and crude protein degradability of P. ferulacea was 79.15% and 85.31%, respectively, after 48 h of incubation. By-pass protein content and both organic matter and crude protein degradation rates were similar between samples (P > 0.05). It can be concluded that P. ferulacea has a better nutrient quality compared with even high quality alfalfa based on nutrient contents and digestibility values, and therefore substitution of alfalfa by P. ferulacea in the diet of ruminant animals is feasible.

Anahtar Kelimeler:

Prangos ferulacea, nutrient content, in situ degradation kinetics

Determination of nutrient content and digestibility characteristics of Prangos ferulacea (L.) on grazing lands of Eastern Anatolia

Keywords:

Prangos ferulacea, nutrient content, in situ degradation kinetics,

PDF

___

Ensminger ME, Olentine CG. Feeds and Nutrition. Clovis, CA, USA: Ensminger Publishing Company, 1978.
Coşkun B, Gülşen N, Umucalılar HD. The nutritive value of Prangos ferulacea. Grass Forage Sci 2004; 59: 15–19.
Eilami B, Noroozian H. Comparison of inclusion in diet of Prangos ferulacea and Medicago sativa on fattening performance and carcass characteristics of Fars native sheep (Karakul), Final Research Report, Fars Research Center for Natural Resources and Animal Husbandry, Shiraz, Iran, 1995.
Akkılıç M, Sürmen S. Yem Maddeleri ve Hayvan Besleme Laboratuvar Kitabı. Ankara, Turkey: AÜ Basımevi, 1979. 5. Van Soest PJ, Robertson JB. Systems of analyses for evaluation of fibrous feed. Proc Int Workshop on Standardization of Analytical Methodology for Feeds. Int Dev Res Center, Ottawa, Canada, 1979; pp. 49–60.
Goering HK, Van Soest PJ. Forage fiber analyses, apparatus, reagent, procedures and applications, USDA Agric. Handbook No. 379, 1970.
Tilley JMA, Terry RA. A two-stage technique for in vitro digestion of forage. J Br Grassl Soc 1963; 18: 104–111.
Marten GC, Barnes RF. Prediction of energy digestibility of forages with in vitro rumen fermentation and fungal enzyme systems. In Proc Int Workshop on Standardization of Analytical Methodology for Feed. Int Dev Res Center, Ottawa, Canada, 1980.
Yavuz HM. Çiftlik Hayvanlarının Beslenmesinde Temel Prensipler ve Karma Yem Üretiminde Bazı Bilimsel Yaklaşımlar. İstanbul, Turkey: Farmavet, 2001.
McDonald I. A revised model for the estimation of protein degradability in the rumen. J Agr Sci 1981; 96: 251–252.
Deniz S, Karslı MA, Nursoy H, Kutlu MS. Evaluation of in situ degradation kinetics of some commonly used protein sources. Turk J Vet Anim Sci 2004; 28: 1079–1086.
Karslı MA, Akdeniz H, Levendoğlu T, Terzioğlu Ö. Evaluation of nutrient content and protein fractions of four different common vetch varieties. Turk J Vet Anim Sci 2005; 29: 1291– 1297.
Mertens DR. Dietary fiber components: relationship to rate and extent of ruminal digestion. Fed Proc 1977; 36: 187–192.
Wechsler FS. Mathematical models for kinetics of fiber digestion and their application to tropical forages grown in controlled environments. PhD, University of Georgia, Athens, GA, USA, 1981.
SAS. Institute Inc. SAS/STAT Software: Changes and Enhancements, Release 6.12. SAS Institute Inc., Cary, NC, USA, 2005.
Mullahey JJ, Waller SS, Moore KJ, Moser LE, Klopfenstein TJ. In situ ruminal protein degradation of switchgrass and smooth bromegrass. Argon J 1992; 84: 183–188.
Steel RG, Torrie JH. Principles and Procedures of Statistics. 2nd ed. New York, NY, USA: McDonald Book Co., Inc., 1980.
Karslı MA, Russell JR. The effects of heat treatment of forages on degradation kinetics and escape protein concentration. Beef Res Rep 1998; AS639: 90–95.
NRC. Nutrient Requirements of Beef Cattle. 7th ed. Washington, DC, USA: National Academy Press, 1996.