Evaluasi Indeks Yolk dan Ketebalan Kerabang dengan Menggunakan Gelombang Ultrasonik pada Telur Ayam Ras

Abstract

The consumption and production figures for purebred chicken eggs are quite high, higher than those of local bred chickens and ducks. The high numbers will be very good if accompanied by good egg quality as well. Measurement of egg quality is usually cracked to determine shell thickness and yolk index. There is an alternative way so that egg quality can be known without being cracked, by using ultrasonic waves. This study aims to determine the yolk index and eggshell thickness of chickens using ultrasonic waves. The study used descriptive methods with purposive sampling using 37 eggs. The Variables for egg quality were yolk index and shell thickness, while for ultrasonic waves were propagation speed and attenuation coefficient. The results showed that the yolk index with a value range of 0.255 to 0.550 can be determined using ultrasonic waves with a propagation speed ranging from of 3,147 m/s to 3,439.292 m/s, and the attenuation ranging from of 62.178 to 69.675. The thickness of the shell measured using a micrometer has a range of 0.403 to 0.566 mm and the thickness of the shell measured using ultrasonic waves has a range of 0.333 to 0.582 mm. It can be concluded that the speed of propagation and ultrasonic wave attenuation can determine the yolk index and shell thickness of chicken eggs.