Fontes de óleo vegetal na dieta de cordeiros em confinamento

Yamamoto, Sandra Mari; Macêdo, Francisco de Assis Fonseca de; Zundt, Marilice; Mexia, Alexandre Agostinho; Sakaguti, Eduardo Shiguero; Rocha, Guilherme Bareia Liberato; Regaçoni, Kelly Cristina Telles; Macedo, Rosa Maria Gomes de

doi:10.1590/s1516-35982005000200040

Cited by 26 publications

(23 citation statements)

References 6 publications

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“…The conversion data reported in the present study were lower than those reported by Yamamoto et al (2005): 3.50; 3.57; 3.89 and 3.95 for Santa Inês × Dorper lambs, in confinement fed control diet and diet with (3%) soybean oil, rapeseed oil or flaxseed oil, respectively. The same occurred for daily weight gain when these authors reported an average of 0.272 (kg/day), higher than the means observed in the present experiment.…”

Section: Resultscontrasting

confidence: 90%

“…Yamamoto et al (2005) studied fat sources in feeding Santa Ines lamb reared in confinement and reported better performance for animals fed diet without soybean oil for weight gain compared with the diet with 3% of this ingredient. Several authors have reported reduction in rumen fermentation when fat was added to the diet (Santos et al, 2001b;Silva et al, 2007a, b;Oliveira et al, 2009;Silva et al, 2010).…”

Section: Resultsmentioning

confidence: 99%

“…Fat sources in the diet can be used to raise the energetic density, improve performance and manipulate carcass quality (Yamamoto et al, 2005). According to HomemJunior (2010), the inclusion sunflower grains or protected fat in the diet of confined lambs gives satisfactory yields, influencing the fat proportion and intestinal tract content.…”

Section: Introductionmentioning

confidence: 99%

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Performance, carcass characteristics and non-carcass components of Texel × Santa Inês lambs fed fat sources and monensin

Soares

Garcia²,

Pereira

et al. 2012

R. Bras. Zootec.

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-Performance, carcass, non-carcass and commercial cuts and components of Texel × Santa Inês crossbred lambs, managed in confinement and fed diets based on soybean oil, soybeans and a conventional diet, with or without the use of monensin (78 ppm dry matter basis) were evaluated. Thirty-six Texel × Santa Inês lambs (18 males and 18 females) were managed in intensive systems. Animals were slaughtered after 87 days of confinement, and performance, carcass characteristics, weight and percentages of carcass and non-carcass components were evaluated. The animals fed the control diet had heavier carcass and parts than animals fed soybean, while the oil diet did not differ from the controls in most parameters. The animals fed soybean showed lower intake kg dry matter (DM), organic matter (OM), crude protein (CP), neutral detergent fiber (NDF) and metabolizable energy (ME) compared with animals fed the control diet, increased ether extract (EE) intake in kg, % body weight (BW) and metabolic weight (MW) and did not differ from the soybean oil diet. Animals receiving monensin had lower DM intake, OM, CP, EE, NDF, gross energy (GE) regardless of the expression, % kg BW, or % PM, than the animals that did not receive the additive. Males produced better and had heavier cuts than the females; the latter deposited subcutaneous fat earlier. Animals that received oil or soybean showed greater body weight and small intestine percentage. Soybean oil intake did not improve performance, carcass weights or parts of Santa Ines × Texel lambs in confinement. Soybeans at 15% dry matter reduced energy intake and lamb performance. The use of monensin at 78 ppm on a dry matter basis is not recommended for lambs in confinement, especially if associated with oil or soybeans that may harm animal performance.

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Section: Resultscontrasting

confidence: 90%

Section: Resultsmentioning

confidence: 99%

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Performance, carcass characteristics and non-carcass components of Texel × Santa Inês lambs fed fat sources and monensin

Soares

Garcia²,

Pereira

et al. 2012

R. Bras. Zootec.

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“…Diets did not influence (P>0.05) leg compactness index, and average values were superior to the 0.30 leg compactness index found by Yamamoto et al (2005). Musselman et al (2008), working with 24 lambs, 24 ewes and 24 crossbred (Southdown × Suffolk) wethers, fed diets containing 0, 15, 30 and 45% crude glycerin of the total diet, reported similar commercial carcass yield results to those of this study, with 0 and 15% glycerin and a yield reduction for higher levels of glycerin.…”

Section: Resultsmentioning

confidence: 57%

Performance and carcass characteristics of lambs fed on diets supplemented with glycerin from biodiesel production

et al. 2011

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-This study was carried out to evaluate the influence of diets supplemented with glycerin as an alternative ingredient to corn on the performance and carcass characteristics of Santa Inês confined lambs. The study involved 27 lambs aged 90 days, having an average initial weight of 26.33 ± 0.15 kg. Lambs were randomly distributed into a control group and groups with diets containing 15 and 30% glycerin in the total feed. Diet was formulated with 40% roughage and 60% concentrate.The experimental design was completely randomized, and the production performance and carcass characteristics were analyzed by analysis of variance, and the subjective carcass characteristics, by general linear models. The daily average gain was 0.21, 0.24 and 0.23 kg/day; feeding conversion was 6.39, 5.73 and 5.92 kg of diet/kg BW for control animals, and those fed with 15 or 30% glycerin, respectively, without treatment differences. Lambs were slaughtered, weighing 34 to 36 kg, and average weight of the cold carcass and commercial carcass yield were evaluated. The results were, respectively, 15.97 kg and 49.18%, for control, 15.96 kg and 48.31% for animals fed with 15% glycerin, and 15.79 kg and 47.87% for those treated with 30% glycerin, with no treatment effects. Meat tenderness and cooking loss averages were not affected by diets, with 5.07 kg and 40.45%, 5.10 kg and 40.81%, and 5.27 kg and 39.04%, respectively, for control, and those fed with 15 or 30% glycerin. Therefore, it is possible to conclude that up to 30% of medium purity glycerin in the dry matter of the diet can be used to replace corn, without any negative effect on lamb performance or carcass characteristics.

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“…According to Yamamoto et al (2005), Santa Inês breed has some undesirable characteristics concerning the meat production: slower weight gain and lower quality carcass compared to those of fitted breeds.…”

Section: Introductionmentioning

confidence: 99%

Performance and carcass characteristics of Santa Inês pure lambs and crosses with Dorper e Texel at different management systems

et al. 2010

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-It was evaluated the performance and the carcass characteristics of 36 non-castrated male lambs, Santa Inês purebreed and crossbreeds from Dorper × Santa Inês and Texel × Santa Inês, managed in three different systems (intensive, semi-intensive and extensive), slaughtered at 38.41 ± 1.24 kg. It was observed the highest weight gain for lambs reared in intensive system, which also showed the greatest carcass yield. The management systems did not influence carcass measures of animals in intensive system much because of the greater weight of the carcass. The intensive system provided the best performance, regardless the genetic group.

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Fontes de óleo vegetal na dieta de cordeiros em confinamento

Cited by 26 publications

References 6 publications

Performance, carcass characteristics and non-carcass components of Texel × Santa Inês lambs fed fat sources and monensin

Performance, carcass characteristics and non-carcass components of Texel × Santa Inês lambs fed fat sources and monensin

Performance and carcass characteristics of lambs fed on diets supplemented with glycerin from biodiesel production

Performance and carcass characteristics of Santa Inês pure lambs and crosses with Dorper e Texel at different management systems

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