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Journals / Journal of Agricultural Sciences / 2026 / Volume: 28 Issue: 2

In Situ and in Vitro Nutritive Value Assessment of Styrax Officinalis L. as an Alternative Forage Source for Goat Feeding

Selim Esen(Balikesir Directorates of Provincial Agriculture and Forestry, Republic of Turkey Ministry of Agriculture and Forestry, Manyas, Balikesir/Turkey)0000-0003-4953-7960
Fisun Koc(Tekirdağ Namık Kemal University, Faculty of Agriculture, Department of Animal Science)0000-0002-5978-9232
Levent Özdüven(Tekirdağ Namık Kemal University, Faculty of Agriculture, Department of Animal Science)0000-0002-8951-8054
Hüseyin Eseceli(Kastamonu University, Faculty of Veterinary, Department of Animal Nutrition and Nutritional Diseases)0000-0002-5912-5479
Evren Cabi(Tekirdağ Namık Kemal University, Faculty of Natural and Applied Science, Department of Biology)0000-0002-7706-5801
Harun Karadağ(Balikesir Directorate of Provincial Agriculture and Forestry, Republic of Turkey Ministry of Agriculture and Forestry)0000-0001-8161-3199
Pages
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Publication Date
2022-04-25
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The research findings clearly indicate that degradability of DM, CP, and ME content of SO leaves ranged between moderate to high and significantly affected by phenological stages, however, they could be utilized until the end of the FL stage as forage sources.

📌 3 Key Takeaways

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Objective & Hypothesis:The current study aimed to determine Styrax officinalis L. (SO) leaf's nutritive value, collected at four phenological stages, pre-flowering (PF), flowering (FL), seed linkage (SL), and fruiting (FR) by in situ and in vitro experiments.
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Key Findings & Data:Significant differences between chemical compositions of the SO leaves collected at different phenological stages were observed (P<0.001).
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Conclusion & Impact:The research findings clearly indicate that degradability of DM, CP, and ME content of SO leaves ranged between moderate to high and significantly affected by phenological stages, however, they could be utilized until the end of the FL stage as forage sources.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Styrax officinalis L. leaves · ruminal degradability · digestibility

Abstract

The current study aimed to determine Styrax officinalis L. (SO) leaf's nutritive value, collected at four phenological stages, pre-flowering (PF), flowering (FL), seed linkage (SL), and fruiting (FR) by in situ and in vitro experiments. The ruminal degradability of dry matter (DM) and crude protein (CP) and in vitro gas production (GP) of SO leaves were measured using three rumen fistulated mature Saanen goats. Significant differences between chemical compositions of the SO leaves collected at different phenological stages were observed (P<0.001). The DM, CP, ether extract (EE), and ash values of SO leaves ranged between 29.16 to 45.63%, 10.11 to 19.79%, 3.40 to 5.85%, and 4.71 to 6.49% during the different phenological stages (PF, FL, SL and FR, respectively). Cell wall components of SO leaves showed a cubic trend due to their capability to form new shoots after grazing. The effective DM and CP degradability of SO leaves ranged between 66.91 to 77.93% and 64.92 to 84.57%, which means an average value for animals fed at approximately maintenance level when rumen outflow rate (r) is equal to 0.02 h−1. Significant differences between the SO leaves collected at different phenological stages were observed in GP at all incubation times (P<0.05 and P<0.001). After 96 h incubation, the gas produced ranged between 20.68 to 27.53 mL/200 mg DM of the substrate. The research findings clearly indicate that degradability of DM, CP, and ME content of SO leaves ranged between moderate to high and significantly affected by phenological stages, however, they could be utilized until the end of the FL stage as forage sources.

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Cite This Article

Esen, S., Koc, F., Özdüven, L., Eseceli, H., Cabi, E., Karadağ, H. (2022). In Situ and in Vitro Nutritive Value Assessment of Styrax Officinalis L. as an Alternative Forage Source for Goat Feeding. Journal of Agricultural Sciences, Volume: 28 Issue: 2. https://doi.org/10.15832/ankutbd.871650

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