Características físico-mecânicas do couro de ovinos mestiços Santa Inês e Texel

Villarroel, Arturo Bernardo Selaive; Costa, Roberto Germano; Oliveira, Sônia Maria Pinheiro de

doi:10.1590/s1516-35982004000900025

Cited by 6 publications

(7 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…A pele produzida também tem apresentado baixo aproveitamento, o que, segundo Furlanetto (2003), é ocasionado principalmente pela falta de técnicas corretas para os procedimentos de abate, esfola e conservação, que geram defeitos e desvalorizam a matéria-prima. Villarroel (2004a) verificaram que o couro de animais mestiços deslanados Santa Inês apresentou maior resistência nos testes físico-mecânicos em comparação ao de animais mestiços lanados Texel. Além disso, o uso de reprodutores lanados com ovelhas deslanadas para melhorar a produção de carne influencia negativamente a qualidade dos couros, tornando-se fator importante na determinação da qualidade do produto pela indústria coureira.…”

Section: Introductionunclassified

Características físico-mecânicas de couros caprinos e ovinos no Cariri Paraibano

Oliveira¹,

Costa

Sousa

et al. 2008

R. Bras. Zootec.

Self Cite

View full text Add to dashboard Cite

RESUMO -Objetivou-se com este trabalho avaliar as características físico-mecânicas de couros de um genótipo ovino e de três genótipos caprinos. Utilizaram-se 43 peles curtidas ao cromo, provenientes de 9 ovinos Santa Inês, 12 caprinos ½ Anglo Nubiano, 16 ½ Boer, todos mestiços com animais Sem Raça Definida (SRD), e 6 caprinos nativos denominados SRD.No período pré-experimental, todos os animais foram desmamados aos 90 dias de idade aproximadamente e criados em sistema de produção semi-intensivo utilizando pastagem cultivada. O período experimental iniciou quando os caprinos (5 meses de idade) e os ovinos (4 meses de idade), alcançaram o peso médio de 18,3 kg. Os animais foram abatidos com peso médio de 30 kg e idades de 180 e 270 dias, para ovinos e caprinos, respectivamente. O genótipo e a direção amostrada influenciaram o resultado do teste de resistência ao rasgamento progressivo, apesar de todos os valores terem sido inferiores aos valores de referência recomendados para um couro de boa qualidade. Nas determinações da medida de distensão e resistência da flor, não foram detectadas diferenças entre os genótipos, no entanto, no teste de resistência à tração e ao alongamento, observaram-se diferenças entre os genótipos ou a direção da amostra. Todos os resultados foram superiores aos recomendados para um produto de qualidade industrial.Palavras-chave: curtimento, qualidade do couro, pele, resistência, curtida ao cromo Goat and sheep leather physical-mechanical characteristics in the Cariri ParaibanoABSTRACT -This work had as objective to evaluate the physical-mechanic characteristics of the leather from one genotype of sheep and three genotypes of goat. Forty three tanned chrome skins were used: 9 Santa Inês sheep, 12 ½ Anglo Nubiano, 16 ½ Boer, all crossbed with animals of non-defined breeds (NDB) and six NBD native goats. In the pre-experimental period, all animals were weaned at 90 days of age approximately and raised under semi-intensive production systems using cultivate pasture. The experimental phase began when the goat (5 moths of age) and sheep (4 moths of age ) reached 18.3 kg. The animals were slaughtered with average weight of 30 kg with ages of 180 and 270 days, for sheep and goats, respectively. Genotype and direction factors influenced the results for the progressive tear strength, although all values have been inferior to the reference values recommended for good quality leather. In measurement of the grain distention and strength, no differences were detected among the genotypes, however, for the tensile strength and percentage elongation were observed differences among genotypes or the samples direction. All results were above to the recommended for an industrial quality product.

show abstract

Section: Introductionunclassified

Características físico-mecânicas de couros caprinos e ovinos no Cariri Paraibano

Oliveira¹,

Costa

Sousa

et al. 2008

R. Bras. Zootec.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Similar results were reported by Ferrandiz-Gomez et al (1993) for cow, sheep and goat leather and by Oliveira et al (2008) and Oliveira et al (2007) for sheep and goat leather. However, Villarroel et al (2004) did not find any effect of the direction of the sample in relation to the backbone (P>0.05) on the average tensile and tear strength values for sheep leather. Tensile strength test 1.62 ± 0.02b 1.78 ± 0.02a 1.56 ± 0.02b 1.70 ± 0.02a 2.01 ± 0.02a 1.70 ± 0.02b Tear strength test 1.57 ± 0.019b 1.70 ± 0.02a 1.52 ± 0.019b 1.67 ± 0.019a 1.92 ± 0.019a 1.53 ± 0.019b a,b -Significant difference between the sexes within each genetic group according to the Tukey test at 5%.…”

Section: Resultsmentioning

confidence: 69%

“…A similar outcome was observed for the tear strength test, in which the obtained values were approximately 40.5, 36.2 and 42.0 N/mm, respectively, for the three groups studied. Villarroel et al (2004) also noted significantly better (P<0.05) tensile and tear strengths of leather samples from the Santa Inês × Undefinied Breed genotype in comparison with the Texel × WDB genotype.…”

Section: Resultsmentioning

confidence: 80%

“…The same was true for tear strength, in which the leather samples from the Native × Santa Inês group were thicker (P<0.05) than those from the other two groups. Some authors, when studying the skins of sheep (Villarroel et al, 2004), goats (Dal Monte et al, 2004) and both these animals (Oliveira et al, 2008;Oliveira et al, 2007), did not note significant effects of the genetic group or the direction in which the sample was taken to on the leather thickness.…”

Section: Resultsmentioning

confidence: 99%

“…Hair sheep leather is mechanically more resistant than that from wool sheep (Snyman & Jackson-Moss, 2000), but this superiority declines with an increasing fraction of the wool sheep breed in the crosses (Villarroel et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Influence of genotype on the quality of sheep leather

et al. 2011

View full text Add to dashboard Cite

-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.

show abstract

Effects of birth type and family on the variation of carcass and meat traits in Santa Ines sheep

Jucá

Faveri

Filho

et al. 2015

Trop Anim Health Prod

View full text Add to dashboard Cite

This study aimed to evaluate the effects of birth type and family on quantitative and qualitative meat traits in Santa Ines lambs and to do a descriptive study of variation inside of breed. A total of 50 carcass and meat traits were evaluated in up to 101 lambs slaughtered at 424 days of age. Random effect of family, the fixed effect of birth type (single or double) and year, and the covariates of dam's weight at weaning and age (in days) at slaughter were inserted in the model. This study shows that some carcass and meat traits in Santa Ines raised on pasture has large variability, specially for meat cut yields, several carcass non-components yields, and rib eye area, subcutaneous fat thickness, shear force, cooking losses, and b* color parameter. The birth type effect influenced (P < 0.05) rump width; reticulum, leg, heart and kidney yields; and the carcass pH at 24 h after slaughter. The family effect was significant (P < 0.05) for cold carcass weight; hot, cold and true carcass yields; external carcass and leg lengths; perimeter and width of the rump; kidney, liver and tail yields; and carcass pH at slaughter.

show abstract

Características físico-mecânicas do couro de ovinos mestiços Santa Inês e Texel

Cited by 6 publications

References 2 publications

Características físico-mecânicas de couros caprinos e ovinos no Cariri Paraibano

Características físico-mecânicas de couros caprinos e ovinos no Cariri Paraibano

Influence of genotype on the quality of sheep leather

Effects of birth type and family on the variation of carcass and meat traits in Santa Ines sheep

Contact Info

Product

Resources

About