Desempenho e características de carcaça de cordeiros das raças Texel, Suffolk e cruza Texel x Suffolk

Carvalho, Sérgio; Vergueiro, André; Kieling, Roberto; Teixeira, Regina Cánovas; Pivato, Josane; Viero, Renan; Cruz, Alex Nunez da

doi:10.1590/s0103-84782005000500026

Cited by 12 publications

(11 citation statements)

References 5 publications

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“…The gains observed in the present study (Table 2) were close to the results of a study by Garcia et al (2000), who used diets containing 15% coffee husk and obtained gains of 193 g day -1 in crossbred Texel, Bergamasca, and Santa Inês lambs. The performance of the lambs in this present study was a little lower than the results obtained by Carvalho et al (2005), since that study achieved gains of 274 g day -1 for Texel lambs in post-weaning confinement, 335 g day -1 for crossbred Texel and Suffolk lambs, and 305 g day -1 for Suffolk lambs, all when using diets with 0.70 kg kg -1 of TDN.…”

Section: Resultscontrasting

confidence: 80%

Replacing oat hay with coffee husk in the feed of finishing lambs

Belan

Rêgo

Castro

et al. 2019

SCA

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The objective of this study was to evaluate the efficacy of replacing oat hay with coffee husk for the feeding of confined lambs. In this study, 24 male Texel lambs of approximately 60 days of age and with a mean ± standard error weight of 21.95 ± 5.81 kg were examined. Their diet was composed of 30% oat hay and 70% concentrated feed per kilogram of dry matter. The experimental design was randomized and included four treatments (0, 7.5, 15, and 22.5% of coffee husk in the total dry matter), with six replicates of each treatment. The animals were slaughtered when they reached a mean live weight of 32 kg. There was no significant difference in dry matter intake and mean daily weight gain (which were 197 g day-1) among treatments. The mean daily weight gain (DWG) was not significantly affected (P > 0.05) by the replacement of oat hay with coffee husk in the diet, with the overall mean DWG being 215.05 g day-1. There were no significant differences (P > 0.05) among treatments in any of the studied carcass variables, and the mean true carcass yield was 53.9%. The lambs presented a mean finishing score of 2.96 (on a scale of 1 to 5) and a conformation of 4.21 (on a scale of 1 to 6), characterizing them as good carcasses. In terms of economic viability, the 7.5% diet stood out as the one that had the highest profitability, generating a profit of $ 3.25 USD per kg of carcass produced. Coffee husk can therefore replace oat hay in the feed of finishing lambs in concentrations of 0.075 to 0.225 kg kg-¹ of total dry matter with biological and economical efficacy and generating good commercial carcasses.

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Section: Resultscontrasting

confidence: 80%

Replacing oat hay with coffee husk in the feed of finishing lambs

Belan

Rêgo

Castro

et al. 2019

SCA

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“…The use of breeds specialized for meat production -pure or resulting from crossbreeding -is an important instrument in the search for quality sheep meat (CARVALHO et al, 2005). Oliveira et al (1998) studied the meat production of sheep of five genotypes and emphasized that Texel lambs showed a lower percentage of bone in the leg and shoulder and a higher percentage of muscle compared with the Romney Marsh, Corriedale, Ideal, and Merino breeds.…”

Section: Introductionmentioning

confidence: 99%

Tissue composition and allometric growth of tissues from commercial cuts and carcass of Texel lambs slaughtered with different weights

Carvalho

Zago

Pires

et al. 2016

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In this study, we evaluated the tissue composition, the ratios between different issues, and the allometric growth of tissues from the commercial cuts neck, shoulder, rib, and leg, and of the carcass of Texel lambs. Thirty uncastrated male lambs born from single calvings were used in this experiment. Lambs were weaned, confined individually, and distributed into five treatments with six replications. Each treatment consisted of a predefined slaughter weight (T23 -initial slaughter, T25, T30, T35, and T40). The proportion of bone decreased linearly in the shoulder, rib, and legs, but remained constant in the neck. The proportion of muscle decreased in the rib, whereas in the other cuts it remained constant. The percentage of fat increased as the slaughter weight of the lambs was increased, for all cuts. In all cuts and in the carcass, bone and muscle showed early growth (b<1), whereas fat displayed late growth (b>1). The proportion of bone decreased and fat increased linearly in the carcass, and the proportion of muscle was not influenced by the slaughter weight of the lambs. The muscle/fat ratio decreased in all cuts, and consequently in the half-carcass, as the slaughter weight was increased. The muscle/ bone ratio increased in the shoulder, rib, leg, and half-carcass, but there was no significant effect on the neck. The bone and muscle tissues showed early growth, whereas the fat had late growth in the different commercial cuts and carcass of Texel lambs. The tissue growth pattern of the shoulder may be representative of the allometric growth of the different carcass tissues. An increase in the slaughter weight of Texel lambs leads to a reduction of the muscle/fat ratio, due to the higher deposition of fat in the carcass of these animals. ResumoAvaliou-se a composição tecidual, a relação existente entre os diferentes tecidos e o crescimento alométrico dos tecidos dos cortes comerciais pescoço, paleta, costilhar e perna e da carcaça de cordeiros da raça Texel. Foram utilizados 30 cordeiros machos, não castrados e nascidos de parto simples. Os cordeiros foram desmamados, confinados individualmente e distribuídos em cinco tratamentos com seis repetições, sendo cada tratamento um peso pré-estabelecido de abate (T23 -abate inicial, T25, T30, T35 e T40). A proporção de osso diminuiu linearmente na paleta, no costilhar e na perna e se manteve constante no pescoço. A proporção de músculo diminuiu apenas no costilhar, enquanto que nos demais cortes se manteve constante. A porcentagem de gordura aumentou com a elevação do peso de abate dos cordeiros, em todos os cortes realizados. Em todos os cortes e na carcaça, o osso e o músculo apresentaram crescimento precoce (b<1), enquanto que a gordura apresentou crescimento tardio (b>1). A proporção de osso diminuiu e a de gordura aumentou linearmente na carcaça, enquanto que a proporção de músculo não foi influenciada pelo peso de abate dos cordeiros. A relação músculo/gordura diminuiu em todos os cortes e, consequentemente, na meia carcaça com o aumento no peso de ab...

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“…These results meet those by Pellegrin et al (2012) and show that glycerin level in lamb feeding does not change animal's daily weight gain. Slaughtered animal price (Table 4) was within the standards set by regional cooperatives (28 to 35 kilos of live weight) and met literature data; taking in account the same breed which was slaughtered in confinement (CARVALHO et al, 2005). The assessed carcass performance features (Table 4) did not differ among feedings (P>0.05).…”

Section: Resultsmentioning

confidence: 79%

Development, economic viability and attributes of lamb carcass from confined animals fed on different amounts of crude glycerin

et al. 2015

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The current study aims to assess the effect from crude glycerin inclusion (0, 7, 14, and 21% dry matter) in the diet of slaughtered lamb on their development, nutrient consumption, biometrical measures, diet economic viability and carcass features. Thirty two (32) non-castrated male Texel lambs were used in the study, they presented mean initial weight 15.9 ± 4.1 kilos and were distributed in casual outlining. They were fed with four treatments, with 8 repetitions. Animals were slaughtered when they reached approximately 35 kilos. The mean total weight gain was 20.72 kilos and mean daily weight gain was 260 grams. No changes resulted from glycerin use. The carcass performance was similar among treatments (P>0.05) and the cold carcass performance (CCP) was 44.68%. There were no effects (P>0.05) on the loin eye area (LEA) and on fat thickness (FT); they showed averages of 13.66 cm2 and 0.84 mm, respectively. Nutrition cost per animal during the whole confinement period varied between R$82.60 (eighty-two Reais and forty-eight cents) to R$92.48. The smallest nutrition amount consisted of 21% crude glycerin. The gross profit ranged from R$30.75 to R$ 34.01 per animal, for feed without glycerin and 21% glycerin, respectively. Animal development was not impacted by glycerin introduction, even with decrease on dry and organic mass consumption. The result showed that crude glycerin inclusion might be used in lambs’ diet. Whenever there are big amounts of feed involved in the process, the 21% crude glycerin addition may be an interesting cost reduction. Seventy eight percent (78%) glycerol crude glycerin to replace corn-based feed in confined lambs’ diet appeared to be nutritionally and economically viable.

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Desempenho e características de carcaça de cordeiros das raças Texel, Suffolk e cruza Texel x Suffolk

Cited by 12 publications

References 5 publications

Replacing oat hay with coffee husk in the feed of finishing lambs

Replacing oat hay with coffee husk in the feed of finishing lambs

Tissue composition and allometric growth of tissues from commercial cuts and carcass of Texel lambs slaughtered with different weights

Development, economic viability and attributes of lamb carcass from confined animals fed on different amounts of crude glycerin

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