Nutrient Digestibility, Ruminal Fermentation Activities, Serum Parameters and Milk Production and Composition of Lactating Goats Fed Diets Containing Rice Straw Treated with Pleurotus ostreatus
- Author: mycolabadmin
- 2014-03-01
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Summary
This research explored using mushroom-treated rice straw as an alternative feed for dairy goats, addressing both environmental and economic challenges in agriculture. Instead of burning rice straw, which causes pollution, it can be transformed into nutritious animal feed through mushroom cultivation. The study found that replacing up to 50% of traditional feed with treated rice straw maintained good milk production and actually improved some aspects of milk quality.
Impacts on everyday life:
• Reduces air pollution by providing an alternative to burning agricultural waste
• Offers farmers a cost-effective feed option during feed shortages
• Improves the nutritional quality of goat milk for consumers
• Creates additional income opportunities through mushroom cultivation
• Promotes sustainable agricultural practices by recycling crop residues
Background
Agricultural policy in Egypt aims to increase the area cultivated with alternative crops like berseem clover. Rice straw in Egypt is a potential feed during fall and winter when rotational berseem clover is unavailable. However, only about 25% of rice straw is fed to livestock due to its low nutritive value, which is attributed to its crystalline cellulose structure surrounded by hemicellulose and lignin that prevents enzyme penetration.
Objective
The study aimed to evaluate the utilization of spent rice straw (SRS), a byproduct of Pleurotus ostreatus mushroom cultivation, in dairy goat diets and assess the productive performance of lactating Baladi goats fed different levels of SRS as a replacement for berseem clover.
Results
The SRS45 diet lowered total feed intake and forage intake compared to Control. SRS25 and SRS45 rations had higher digestibilities of DM and hemicellulose compared to Control. Control had higher digestibilities of organic matter and crude protein. Ruminal pH and microbial protein synthesis were higher for SRS25 and SRS45 than Control. Both Control and SRS25 groups had the highest milk and energy-corrected milk yields. Fat content was higher with SRS45 and SRS25 groups compared to Control. Replacement of berseem clover with SRS increased milk levels of conjugated linoleic acid and unsaturated fatty acids.
Conclusion
Replacing 50% of Egyptian berseem clover with spent rice straw in goat rations improved their productive performance without marked effects on metabolic health indicators. However, increasing SRS to 45% of total mixed ration may negatively affect goat performance.
- Published in:Asian-Australasian Journal of Animal Sciences,
- Study Type:Clinical Trial,
- Source: 10.5713/ajas.2013.13405