Produção e composição do leite de vacas submetidas a dietas contendo diferentes níveis e formas de suplementação de lipídios

Santos, Ferlando Lima; Lana, Rogério de Paula; Silva, Marco Túlio Coelho; Brandão, Sebastião César Cardoso; Vargas, Luiz Henrique Galli

doi:10.1590/s1516-35982001000500034

Cited by 19 publications

(17 citation statements)

References 14 publications

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“…The results obtained in the present study regarding the composition of milk agree with those observed by Santos et al (2001), Barnabé et al (2007), and Corrêa (2007), who evaluated soy in different forms in diets for lactating cows and also did not obtain significant effects. On the other hand, Vilela et al (2003) observed an increase in the milk fat content when they replaced soybean meal by roasted soy beans in diets for high-yield cows.…”

Section: Discussionsupporting

confidence: 92%

Soybean in different forms of processing in the feeding of crossbred cows on brachiaria grass pastures

et al. 2015

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-The objective was to evaluate intake and digestibility of nutrients, as well as milk production and composition of the milk from F1 Holstein × Gyr cows kept on pasture, supplemented with sugarcane and concentrate (28% CP). Five cows with 150±14 lactation days and average milk production of 7.1±2.1 kg/day were distributed in a 5 × 5 Latin square design. The treatments were: soybean meal-based concentrate; soy bean-based concentrate; ground soybean-based concentrate; roasted soybean-based concentrate; and ground, roasted soybean-based concentrate. Dry matter (DM), organic matter, crude protein (CP), neutral detergent fiber (NDF), total carbohydrates and total digestible nutrients intakes were not affected by the diet, but ether extract intake was higher for the animals fed soy bean-based diets than those fed soybean meal. The digestibility of DM, NDF and CP did not differ. The corrected milk yield differed between treatments; animals on the treatment with soy bean-based concentrate had the lowest production in relation to the others, which did not differ from each other. There was no difference between treatments for milk composition. Thus, soybean meal can be replaced by ground soy beans or roasted soy beans (ground or whole) in diets for low-yield cows reared on Brachiaria decumbens pastures with no harm to milk production or composition. Therefore, the use of these alternative raw materials is recommended whenever their inclusion represents lower feeding costs.

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Section: Discussionsupporting

confidence: 92%

Soybean in different forms of processing in the feeding of crossbred cows on brachiaria grass pastures

et al. 2015

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“…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). Ito et al (2010) worked with (half blood) Nellore × Simental crossbred cattle in confinement, fed diet with soybean oil and flaxseed and did not report differences for the variables initial weight, final weight, average daily gain, carcass weight, carcass yield and backfat thickness.…”

Section: Resultsmentioning

confidence: 99%

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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“…Outros autores (Grant & Weidner, 1992;McGuire et al, 1996;Rabello et al, 1996;Santos et al, 2001;Vargas, 2002) também não verificaram diferenças na produção e composição de leite de vacas alimentadas com dietas contendo grão ou óleo de oleaginosas, em níveis de até 7% de EE. Entretanto, Mora et al (1996) relataram que vacas alimentadas com ração com 45% de grão de soja no concentrado produziram 17,7% menos leite corrigido para 4% de gordura em comparação a vacas alimentadas com rações sem grão de soja.…”

Section: Resultsunclassified

Desempenho produtivo e custos com alimentação de búfalas lactantes submetidas a dietas com diferentes fontes de lipídeo

Oliveira

Bagaldo

Ladeira³

et al. 2008

R. Bras. Zootec.

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RESUMO -Objetivou-se avaliar o desempenho de búfalas lactantes alimentadas com diferentes fontes de lipídeo. Utilizaram-se 12 búfalas distribuídas aleatoriamente em quatro tratamentos: sem lipídeo adicional; grão de soja; caroço de algodão; e óleo de soja. O período experimental total foi de 84 dias, com quatro períodos de 21 dias (14 dias para a adaptação e 7 para coleta). A dieta foi fornecida à vontade, duas vezes ao dia, na forma de mistura completa. Nos dias de coleta de cada período, foram determinadas as produções de leite em kg/dia e as produções ajustadas para 4% de gordura. Foram coletados 4 kg de lete para produção de queijo tipo mussarela. Após a elaboração da mussarela, determinou-se o rendimento em relação ao leite in natura e corrigido para 4% de gordura. As fontes de lipídeo não influenciaram a produção diária de leite das búfalas, mas afetaram a produção de leite corrigida para 4% de gordura, que foi maior nas búfalas que receberam a dieta com grão de soja. O rendimento do leite para produção de mussarela foi maior quando fornecida a dieta com óleo de soja. Os custos de alimentação, por dia e total (84 dias), foram maiores para a dieta com caroço de algodão, seguida da dieta com óleo de soja e pelas dietas sem lipídeos adicionais e com grão de soja. A lucratividade com a venda do leite foi maior para a dieta com grão de soja, com óleo de soja, sem lipídio adicional e com caroço de algodão, respectivamente, e com a venda de mussarella foi maior para a dieta com óleo de soja. Como o principal produto do leite de búfala é a mozzarella, os resultados sugerem que das dietas estudadas, aquela com óleo de soja seria a mais adequada para a alimentação de búfalas leiteiras.Palavras-chave: caroço de algodão, extrato etéreo, grão de soja, lactação, óleo de soja Performance and feed cost of lactating water buffalo cows fed different fat sources ABSTRACT -The objective was to evaluate the performance of lactating water buffalo fed diets with different fat sources. Twelve lactating water buffaloes were randomly distributed in four diets: without additional fat, soybean seed, cottonseed and soybean oil. The experimental period was 84 days, with four periods of 21 days (14 days for diet adaptation and 7 days for sample collections. The diets were fullfed, twice daily, as total mixed ration. At sample collections period, milk yield (kg/day) and 4% fat corrected milk (4%FCM) yield were evaluated. Four kg of milk were collected for mozzarella type cheese production. After mozzarella cheese production, it was determined the efficiency in relation to milk in natura and milk 45FCM. The fat sources did not affect daily milk production of water buffalo cows, however affected the 4%FCM, which was higher in the water buffalo cows that was fed diet with soybean seed. The efficiency of milk for Mozzarella production was higher for soybean oil diet. Feeding costs, per day and total (84 days) were higher for the diet with cottonseed, followed by soybean oil, without additional fat and soybean seed. The profitability for the ...

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Produção e composição do leite de vacas submetidas a dietas contendo diferentes níveis e formas de suplementação de lipídios

Cited by 19 publications

References 14 publications

Soybean in different forms of processing in the feeding of crossbred cows on brachiaria grass pastures

Soybean in different forms of processing in the feeding of crossbred cows on brachiaria grass pastures

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

Desempenho produtivo e custos com alimentação de búfalas lactantes submetidas a dietas com diferentes fontes de lipídeo

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