Seasonal Variation in Chemical Composition, Ruminal Fermentation, and Biological Characteristics of Paulownia shan tong: In Vitro Potential Use by Sheep and Goats
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Published:2023-02-23
Issue:3
Volume:9
Page:210
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ISSN:2311-5637
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Container-title:Fermentation
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language:en
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Short-container-title:Fermentation
Author:
Ammar Hajer1, Kholif Ahmed E.2ORCID, Missaoui Manel1, Zoabi Halimeh3, Ghzayel Soha4, de Haro-Martí Mario5, de Almeida Teixeira Izabelle Auxiliadora Molina6ORCID, Fkiri Sondos7, Khouja Mohamed Larbi7, Fahmy Mahmoud2, Gouda Gouda A.2ORCID, López Secundino89ORCID, Chahine Mireille6
Affiliation:
1. Ecole Supérieure d’Agriculture de Mograne, University of Carthage Tunisia, Zaghouan 1121, Tunisia 2. Dairy Science Department, National Research Centre, 33 Bohouth St. Dokki, Giza 12622, Egypt 3. National Research Center, Beit Qad Agricultural Station, Jenin 206, Palestine 4. Ministry of Agriculture, National Agriculture Research Center biotechnology Department, Jenin 227, Palestine 5. Gooding County Extension, University of Idaho, 203 Lucy Lane, Gooding, ID 83330, USA 6. Department of Animal, Veterinary and Food Sciences, University of Idaho, 315 Falls Ave, Twin Falls, ID 83301, USA 7. Institut National de Recherche en Génie Rural, Eaux et Forêts (INRGREF), Rue Hédi El Karray El Menzah IV BP 10, Ariana 2080, Tunisia 8. Instituto de Ganadería de Montaña (CSIC-Universidad de León), Finca Marzanas, 24346 Grulleros, Spain 9. Departamento de Producción Animal, Universidad de León, 24007 León, Spain
Abstract
This study was conducted to determine the seasonal variation (two seasonal harvests during winter and spring) in some chemical and biochemical characteristics of Paulownia shan tong leaves. To achieve this, we analyzed the chemical composition in terms of dry matter (DM), organic matter (OM), crude protein (CP), cell-wall content (neutral detergent fiber (NDF)), acid detergent fiber (ADF), acid detergent lignin (ADL), and lipids. The phenolic compounds (PC) and antioxidant activity (AA) of the leaves were also determined. In vitro gas production (GP) and nutrient degradability were evaluated using two ruminal-content donors (sheep and goats). Higher (p < 0.05) antioxidant activities were observed in the winter harvest of P. shan tong, while higher concentrations of OM (90.5%), lipids (3.02%), NDF (69.7%), ADF (54.8%), ADL (35.4%), total flavonoids (0.45 mg catechin equivalents/mg DM), and total phenolics (2.52 mg gallic acid equivalents/mg DM) were observed in the spring harvest. Higher asymptotic GP and rate of GP (p < 0.05) were observed when the leaves were incubated with rumen liquor of goats compared to sheep; however, higher (p < 0.05) lag time of GP and half-time of GP were observed with rumen liquor from sheep. Moreover, higher asymptotic GP, rate of GP, and half-time of GP were observed with the winter harvest of P. shan tong. Higher (p < 0.001) metabolizable energy, OM degradability, and microbial protein supplies were obtained when the leaves were incubated with rumen fluids from goats and from the winter harvest of P. shan tong compared to the spring harvest. In conclusion, based on the chemical composition and the kinetics of in vitro gas production, P. shan tong leaves seem to be characterized by a good nutritive value and could be considered as an alternative feed resource for ruminants.
Subject
Plant Science,Biochemistry, Genetics and Molecular Biology (miscellaneous),Food Science
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