Impact of Providing Cowpea (Vigna unguiculata) Hay, Wheat Bran, and Their Mixes on Begait Lambs' Skin and Leather Quality

Aims:

To evaluate the impact of adding wheat bran (WB), cowpea hay (CPH), or mixes of the two on the chemical and physico-mechanical properties of leather.
To determine the ideal ratio for supplementing wheat bran and cowpea hay on the chemical and physico-mechanical properties of leather.
Study Design: The study employed a randomized complete block design (RCBD) with five treatments and blocks.

Place and Duration of Study: Northern Ethiopia, Humera Agricultural Research Center farm, starting from December 2016 until November 2017.

Methodology: 25 intact male Begait lambs were bought from the local market, weighing an average of 28.02 ± 1.49 kg (mean ± SD) at 5 to 6 months of age. Based on their starting body weight, they were split into five groups and assigned randomly to each of the five treatments. The standard diet for T1, T2, T3, T4, and T5 consisted of giving natural grass hay ad libitum plus supplements of 300 g CPH, 225 g CPH + 75 g WB, 150 g CPH + 150 g WB, 75 g CPH + 225 g WB, and 300 g WB DM day-1. Three lambs per treatment were randomly chosen, slaughtered, and dressed down using standard commercial techniques at the end of the feeding trial to assess the quality of skin and leather.

Results: Compared to the other treatment groups, the Begait lambs in T2 and T3 exhibited increased tensile strength, elongation strength, and thickness. However, the chemical makeup of skin was comparable between treatment groups.

Conclusion: Therefore, this study concluded that all test diets generated skin and leather that largely complied with the chemical and physico-mechanical quality standards demanded by the leather industry.