Comparison of Texel-and Suffolk-sired lambs out of Finnish Landrace × Dorset Horn ewes under grazing conditions

Latif, Maria; Owen, E.

doi:10.1017/s0021859600086329

Cited by 25 publications

(10 citation statements)

References 6 publications

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“…In our study lambing occurred on pasture, whereas in Leymaster and Jenkins (1993) experiments lambing occurred in drylots. However, our results are similar to More O'Ferrall (1974) Initial weight ( and Latif and Owen (1979). More O'Ferrall (1974) reported nonsignificant differences for the perinatal survival of 91.6 and 90.1% for Suffolk and Texel sired lambs, respectively, and Latif and Owen (1979) reported the survival of 89.6% for Suffolk and 90.4% for Texel crossbred progeny.…”

Section: Resultssupporting

confidence: 89%

“…However, our results are similar to More O'Ferrall (1974) Initial weight ( and Latif and Owen (1979). More O'Ferrall (1974) reported nonsignificant differences for the perinatal survival of 91.6 and 90.1% for Suffolk and Texel sired lambs, respectively, and Latif and Owen (1979) reported the survival of 89.6% for Suffolk and 90.4% for Texel crossbred progeny. Vesley et al (1966) reported equal survival rates for purebred Suffolk and Columbia progeny (85.3 and 89.5%, respectively).…”

Section: Resultssupporting

confidence: 89%

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Breeding for sustainability: Effect of breed on cultural energy expenditure of lamb production

Köknaroğlu¹,

Ali²,

Dg³

et al. 2006

CZECH J ANIM SCI

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Two-year data from terminal study conducted to evaluate post-weaning growth and carcass traits of Texel, Suffolk and Columbia sired offspring were used to evaluate the effect of breed on cultural energy expenditure of lamb production. Each year whiteface ewes (n = 82) composed of primarily Polypay × Dorset ewes were exposed to Texel, Suffolk or Columbia rams for 35 days in the breeding season. The ewes were wintered outdoors on average-quality lucerne hay according to NRC (1985) requirements and were not provided any concentrate during late gestation or lactation. A total of 279 lambs were born with an average of 1.7 lambs per ewe and weaned lambs were used in the study. The lambs were weaned on average at 70 days of age and lambs from each sire breed were placed either in feedlot or on pasture. Texel and Suffolk sired lambs had higher weaning weight than Columbia sired lambs (P < 0.01). Lambs in the feedlot were fed shelled maize and pelleted protein supplement. Lambs on pasture grazed for 63 days and received 455 g concentrate daily and later they were placed in the feedlot. For the cultural energy analysis, pasture establishment and maintenance, feed in feedlot and on pasture, transportation, labour, machinery, electricity and other inputs were calculated and corresponding values for each input were obtained from literature. It was assumed for the analysis that 20 percent of ewes were culled and lambs sold after weaning were included in the analysis. Texel and Columbia breeds had a higher energy input per kg live weight than Suffolk breed (P < 0.04). There was no difference between breeds in terms of energy input per kg carcass (P > 0.4). Suffolk breed had a lower cultural energy ratio for the protein energy output than Columbia and Texel breed (P < 0.02). Energy output ratio defined as kjoule input/kjoule output was better for Suffolk breed and it was different from that of Columbia and Texel breed (P < 0.03).

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Section: Resultssupporting

confidence: 89%

Section: Resultssupporting

confidence: 89%

Breeding for sustainability: Effect of breed on cultural energy expenditure of lamb production

Köknaroğlu¹,

Ali²,

Dg³

et al. 2006

CZECH J ANIM SCI

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“…Females were slaughtered at 30 kg live weight and males at 36 kg. Although growth rate differences between Texel-and Suffolk-cross lambs were small in the present study, the trends observed agree with those reported elsewhere (ABRO, 1975;More O'Ferrall and Timon, 1977a;Latif and Owen, 1979), under grazing conditions. Carcasses were classified for fatness and conformation (Meat and Livestock Commission, 1975).…”

supporting

confidence: 92%

“…Carcasses of such lambs, however, are frequently reported to be over-fat or to have unacceptably soft subcutaneous fat (Robinson and 0rskov, 1975;0rskov, 1976). Recent work has shown that carcasses of Texel-sired lambs contain less fat and more lean than carcasses of lambs sired by many other breeds (Animal Breeding Research Organisation, 1975;More O'Ferrall and Timon, 1977b;Latif and Owen, 1979). Recent work has shown that carcasses of Texel-sired lambs contain less fat and more lean than carcasses of lambs sired by many other breeds (Animal Breeding Research Organisation, 1975;More O'Ferrall and Timon, 1977b;Latif and Owen, 1979).…”

mentioning

confidence: 99%

A note on the growth performance and carcass composition of Texel- and Suffolk-sired lambs in an intensive feeding system

Latif

Owen

1980

Anim. Sci.

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Sixteen male and 16 female lambs were used to compare the performance and carcass composition of Texel- and Suffolk-sired lambs out of Finnish Landrace × Dorset Horn ewes. Lambs were weaned at 6 weeks of age and individually fed an all-concentrate diet ad libitum to slaughter at 30 kg (females) and 36 kg (males). At slaughter, offal weights were recorded and carcass left sides jointed and dissected.Breed types did not differ in weight at weaning, growth iate, age at slaughter, daily feed intake or feed conversion rate. Texels had heavier carcasses (17·2 v. 16·4 kg: P <0·01) and higher dressing percentages (50·7 v. 49·2: P <0·05) than Suffolks. Texel-cross carcasses had 2·9% more lean (P <0·05), but 3·8% less total fat CP <0·01).The results indicate the suitability of Texel-sired lambs for intensive lamb production.

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“…Esses valores podem ser considerados bons, sendo equivalentes àqueles registrados por MACEDO (1998). Os rendimentos verdadeiro e comercial são equivalentes àqueles apresentados por outros autores, em estudos com cordeiros (LATIF e OWEN (1980), SAÑUDO et al (1981), SAÑUDO e SIERRA (1986), GUNEY (1989), MARTINS (1997) Tabela 3 -Médias para peso na origem (PO), no abate (PA), perda de peso da origem ao abate (PPO), peso da carcaça quente (PCQ), peso da carcaça fria (PCF), perda de peso por resfriamento (PPR), rendimento de origem (RO), rendimento verdadeiro (RVC), rendimento comercial (RCC), índice de compacidade da carcaça (ICC) e índice de compacidade do pernil (ICP), conforme o tratamento 1313 REIS et al e MACEDO (1998). Não se observaram diferenças nos índices de compacidade da carcaça entre os tratamentos, sendo que os valores obtidos se encontram próximos aos citados por SAÑUDO et al (1981), que é de 201,84.…”

Section: Resultsunclassified

Características da carcaça de cordeiros alimentados com dietas contendo grãos de milho conservados em diferentes formas

Reis¹,

Jobim²,

Macedo³

et al. 2001

R. Bras. Zootec.

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produção de carne, principalmente em função da atual desvalorização da lã.Uma das peculiaridades da espécie ovina é apresentar alta eficiência para ganho de peso e qualidade da carcaça, nos primeiros seis meses de vida, somando-se, ainda, o rápido ciclo reprodutivo, pois com oito meses, incluindo cinco de gestação, já é possível o abate dos animais.Em vista disto, a ovinocultura é uma atividade com retorno econômico garantido em vários países, como a Nova Zelândia, Austrália, Uruguai e inúmeros países europeus, conhecidos pelo alto nível de industrialização (FIGUEIRÓ e BENAVIDES, 1990 RESUMO -O objetivo do presente estudo foi avaliar o uso de grãos de milho em diferentes formas (grãos secos, silagem de grãos úmidos, grãos hidratados e ensilados) na dieta de cordeiros confinados, e seus possíveis efeitos sobre a qualidade da carcaça, compreendendo avaliações quantitativas e qualitativas. Vinte cordeiros machos cruza Bergamácia x Corriedade foram utilizados. Os animais foram confinados, distribuídos em cinco tratamentos, que consistiram de diferentes relações grãos de milho secos:silagem de grãos úmidos ou de milho hidratado (0:100, 50:50, 100:0). Não houve efeito dos tratamentos sobre as características de carcaça. O rendimento verdadeiro médio de carcaça foi de 51,5% e o rendimento de carcaça comercial, de 42,4%. Não foram observadas diferenças entre as variáveis condição corporal e conformação da carcaça, em função dos tratamentos. As variáveis cobertura de gordura, cor da gordura e espessura de gordura foram semelhantes. As formas dos grãos de milho utilizados na alimentação dos cordeiros não causaram efeitos sobre a carcaça, considerando-se as variáveis quantitativas e qualitativas.Palavras-chave: característica de carcaça, ovinos, rendimento de carcaça, silagem de grãos. Characteristics of the Carcass of Lambs Fed Diets with Corn Grains Conserved in Different FormsABSTRACT -The objective of this study was to evaluate the use of corn grains in different forms (corn dry grain, high moisture corn silage, moisturized corn silage) in the diet of confined lambs, and its possible effects on the qualitative and quantitative characteristics of the carcass. Twenty male Bergamacia x Corriedade lambs were used. The animals were confined and fed ad libitum, assigned to five treatments consisted of dry corn: high moisture corn silage or moisturized corn silage (0:100, 50:50, 100:0). There was not effect of the treatments on the main carcass characteristics. The average true yield of carcass was 51.5%, while the yield of commercial carcass was 42.4%. Differences were not observed between the variable body condition and conformation of the carcass, in function of the treatments. The variables fat covering, fat color and fat thickness were similar. The forms of the corn grains used in the feeding of the lambs did not affect the qualitative and quantitative characteristics of the carcass.

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Comparison of Texel-and Suffolk-sired lambs out of Finnish Landrace × Dorset Horn ewes under grazing conditions

Cited by 25 publications

References 6 publications

Breeding for sustainability: Effect of breed on cultural energy expenditure of lamb production

Breeding for sustainability: Effect of breed on cultural energy expenditure of lamb production

A note on the growth performance and carcass composition of Texel- and Suffolk-sired lambs in an intensive feeding system

Características da carcaça de cordeiros alimentados com dietas contendo grãos de milho conservados em diferentes formas

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