Influence of genotype on the quality of sheep leather

Abstract

-The objective of this study was to evaluate the influence of crossings between sheep breeds on the intrinsic quality of leather. It was used the skins of 36 lambs (18 females and 18 males), resulting from crosses between ewes of a native breed from the Brazilian state of Mato Grosso do Sul and rams of the same native breed as well as the Texel and Santa Inês genetic groups. The animals were raised in confinement until slaughter weight, from 28 to 32 kg. After slaughter, samples were taken from the skins for histological analysis. The skins were tanned with chromium, retanned and greased. It was taken from the leather samples for electromicrographs and for tests for tensile and tear strength (intrinsic quality). Morphological aspects from the skin as well as from the leather help to understand the results found and they evidence that breeds or crossings among breeds interfere in the intrinsic quality of leather and skin of sheep.

Parameters of the Reproductive Tract, Spermatogenesis, Daily Sperm Production and Major Seminal Plasma Proteins of Tropically Adapted Morada Nova Rams

“…In addition to the Santa Ines, the Morada Nova is another type of hair sheep raised in Brazil and highly appreciated because the quality of their skin (Jacinto et al. ). These animals have been subjected to natural selection for centuries in farms of the Brazilian semi‐arid region, and they are much more adapted to tropical conditions and low‐input production systems when compared to the Santa Ines and other breeds in Brazil (Santos et al.…”

Histological and physical–mechanical characteristics of the skin of Dorper sheep related to residual feed intake and the confinement environment

“…The left halves of sheepskin were salted and kept at 4 °C until tanning, following the steps of soaking, liming, deliming, tanning, lowering, re-tanning and dyeing, applying the methodology of Jacinto et al (2011). After tanned, leathers were acclimatized at 30 °C for 60 days, before the physical and mechanical tests.…”

Compendio de conservación y producción de recursos zoogenéticos locales: los ovinos Pantaneiro

“…La calidad del cuero ovino está influenciada por la raza y edad de los animales (calidad intrínseca) y las marcas en las pieles adquiridas durante la vida útil del animal (calidad extrínseca) (Jacinto et al, 2011). Las pieles de ovinos Pantaneiros se utilizan principalmente en la fabricación de piel de ovejas para montar, piel para confección de ropas y decoración interior.…”