Yield survey and nutritional evaluation of garlic stalk for ruminant feed

Abstract

BackgroundVery limited information exists on the ruminal degradation kinetics of nutrients in garlic stalk. The present study aimed to survey the annual yield of garlic stalk in Korea and determine its feed-nutritive value for ruminants.MethodsIn Experiment 1, garlic stalk was incubated in situ in the rumen of two Hanwoo steers (360 ± 15 kg body weight) and removed after 12, 24, or 48 h to determine the ruminal degradation kinetics of DM and NDF. Rice straw was also included for comparison. In Experiment 2, In Experiment 2, six male Corriedale sheep were randomized to two dietary treatments to determine the apparent digestibility of nutrients in garlic stalk. Diets included a control ration without garlic stalk (60% concentrate mix +40% ryegrass) or a treatment ration (70% control diet +30% garlic stalk).ResultsThe Korean national yield of garlic stalk (sun-dried basis) in 2016 was estimated to be 31,910 tons, with the southern coastal regions producing the highest quantity. Compared with rice straw, garlic stalk had lower NDF, higher ADF, and greater effective degradabilities of DM and NDF, resulting in a greater TDN value (56.3%), which was higher than that obtained for rice straw (43.7%).ConclusionThese results provide basic information on the ruminal DM and NDF degradation kinetics of garlic stalk, which would be helpful for the efficient utilization of this by-product in ruminant diets.

Changes in the Soil Microbiome in Eggplant Monoculture Revealed by High-Throughput Illumina MiSeq Sequencing as Influenced by Raw Garlic Stalk Amendment

“…The raw garlic stalk (RGS) is a byproduct of garlic and, as it is produced abundantly after harvesting crops, it is usually left on the soil or burnt, causing air pollution. China is currently a leading producer of garlic in the world and is responsible for 25% to 30% of total garlic production [8,9]. We recently reported the beneficial impact of the incorporation of RGS as a soil amendment on plant growth and antioxidant systems.…”

Arbuscular Mycorrhizal Fungi and Dry Raw Garlic Stalk Amendment Alleviate Continuous Monocropping Growth and Photosynthetic Declines in Eggplant by Bolstering Its Antioxidant System and Accumulation of Osmolytes and Secondary Metabolites

“…China is, currently, the world’s largest producer of garlic, contributing over 0.02 billion tons annually, which also entails abundant raw garlic stalks as a by-product, a significant cause of environmental pollution. Almost 70% of garlic stalk is discarded or burned by farmers because they consider it waste ( Lee et al, 2017 ). To address this issue, incorporating this waste (i.e., DRGS) in soil would offer an effective way to utilize this resource as a plant fertilizer and improve crop yields.…”

Effects of Mixing Garlic Skin on Fermentation Quality, Microbial Community of High-Moisture Pennisetum hydridum Silage

“…Garlic ( Allium sativum L.) is a flavoring ingredient universally used with an annual production of approximately 20 million tons in the world ( Lee et al, 2017 ). The by-products of garlic processing (garlic skin and straw) account for 25–30% of the weight of the raw material ( Arzanlou and Bohlooli, 2010 ) but are mostly discarded or incinerated, which causes environmental pollution ( Kallel et al, 2014 ).…”