Intake, whole tract digestibility, milk production, and milk composition of Holstein cows fed extruded soybeans treated with or without lignosulfonate

Neves, Carolina Antunes; Santos, Geraldo Tadeu dos; Matsushita, Makoto; Alves, Estênio Moreira; Oliveira, R. L.; Branco, Antônio Ferriani; Silva, D.C.; Furlan, Antônio Cláudio; Petit, H.V.

doi:10.1016/j.anifeedsci.2006.05.015

Cited by 26 publications

(43 citation statements)

References 28 publications

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“…O teor de gordura do leite depende do teor de fibra da dieta, pois a fibra, ao ser degradada no rúmen, produz acetato, que é precursor primário para síntese de gordura no leite (Bargo et al, 2003). Também a baixa concentração de extrato etéreo ingerida pelos animais -como era à base de forragem, a dieta permitiu teores de gordura superiores a 3,5%, o que pode não ser observado quando altas quantidades de EE estão presentes na dieta, pois esse nutriente pode alterar a fermentação ruminal, diminuindo a gordura total do leite (Neves et al, 2007). A partir dos teores de FDN e FDA (Tabela 5), poderia se esperar alteração no teor de gordura do leite.…”

Section: Resultsunclassified

Produção e composição química do leite, consumo e digestibilidade de forragens tropicais manejadas em sistema de lotação intermitente

Porto

Deresz²,

Santos

et al. 2009

R. Bras. Zootec.

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RESUMO -Os objetivos neste trabalho foram comparar a composição química, a digestibilidade in vitro da matéria seca (DIVMS), as frações lâminas foliares e bainhas-colmos e a disponibilidade de forragem e avaliar a produção e composição do leite, o peso vivo, o escore corporal e o consumo de matéria seca de forrageiras tropicais. As forrageiras avaliadas foram capim-tanzânia (Panicum maximum Jacq.), grama-estrela (Cynodon nlemfuensis Vanderyst) e capimmarandu (Brachiaria brizantha Staf). As pastagens foram adubadas com nitrogênio (200 kg/ha.ano), K 2 O e P 2 O 5 (50 kg/ha.ano) e manejadas em sistema de lotação intermitente com três dias de ocupação de piquete e dois intervalos de desfolha: janeiro e fevereiro com 24 dias e março, abril e maio com 30 dias. Foram utilizadas 24 vacas em delineamento de blocos ao acaso, com oito vacas por tratamento. As lâminas foliares da grama-estrela tinham em média 18,5% de PB e as bainhas-colmos, 79,9% de fibra em detergente neutro (FDN), valores superiores aos obtidos nas demais forrageiras.A grama-estela também apresentou maior teor de FDN (72,8%) e lignina (7,1%) na forragem disponível. A digestibilidade in vitro da matéria seca do capim-marandu (64,%) foi superior à da grama-estrela (59,4%). Nos capins-tanzânia e marandu, as produções de leite foram de 9,8, valor superior ao de 8,4 kg/vaca.dia da grama-estrela. O teor de proteína do leite das vacas manejadas no capim-tanzânia (2,9%) foi superior ao obtido com grama-estrela (2,8%), mas os teores de gordura e sólidos totais do leite, o escore corporal, o peso vivo e o consumo de matéria seca não diferiram entre as forrageiras avaliadas. A grama-estrela teve maior porcentagem das frações fibrosas, menor DIVMS e menor produção de leite em comparação aos capins-tanzânia e marandu. days. There were 24 cows, eight per treatment. A complete randomized block design was used. The stargrass leaves had 18.5% crude protein (CP) and 79.9% neutral detergent fiber (NDF) on the stems, respectively, which were higher than the other grasses. Stargrass also had higher NDF (72.8%) and lignin (7.1%) in hand plucked samples. The marandu in vitro dry matter digestibility (IVDMD) (64%) was higher than that of stargrass (59.4%). The treatments were different for milk yield and the mean (9.8) for tanzania and marandu grasses were higher than the 8.4 kg/cow.day for stargrass. Milk protein of cows managed on tanzania grass (2.9%) was higher than that of (2.8%) of stargrass. There was no treatment difference for milk fat, total solids, body condition, body weight and feed intake. Stargrass had higher NDF and lignin, however lower IVDMD and milk yield in relation to tanzania and marandu grasses.

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Section: Resultsunclassified

Produção e composição química do leite, consumo e digestibilidade de forragens tropicais manejadas em sistema de lotação intermitente

Porto

Deresz²,

Santos

et al. 2009

R. Bras. Zootec.

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“…In the dairy cow diet, fat is usually carried out by oilseeds, which are often heated; for example, by roasting or extrusion. These processes have been shown to have variable effects on BH among studies, which need to be specified and Effects of the heating process of soybean oil and seeds on fatty acid biohydrogenation in vitro explained: heated oilseeds often induced a decrease in cis-9,cis-12 C18:2 and cis-9,cis-12,cis-15 C18:3 BH in vivo (Gonthier et al, 2005), in situ (Chouinard et al, 1997b;Troegeler-Meynadier et al, 2006b), and in vitro (Reddy et al, 1994); however, this partial protection of PUFA against BH was not always noticed (Akraim et al, 2006;Neves et al, 2007;Abdi et al, 2013). Moreover, in most of these studies, heat treatments resulted in an accumulation of BH intermediates, particularly cis-9,trans-11 CLA or trans-11 C18:1, or both.…”

Section: Introductionmentioning

confidence: 99%

Effects of the heating process of soybean oil and seeds on fatty acid biohydrogenation in vitro

Troegeler‐Meynadier

Puaut

Farizon

et al. 2014

Journal of Dairy Science

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OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible. This is an publisher-deposited version published in : http://oatao.univ-toulouse.fr/ Eprints ID : 12257 ABSTRACTHeating fat is an efficient way to alter ruminal biohydrogenation (BH) and milk fat quality. Nevertheless, results are variable among studies and this could be due to various heating conditions differently affecting BH. The objectives of this study were to determine the effect of type and duration of heating of soybean oil or seeds on BH in vitro. Ruminal content cultures were incubated to first investigate the effects of roasting duration (no heating, and 0.5-and 6-h roasting) at 125°C and its interaction with fat source (soybean seeds vs. soybean oil), focusing on linoleic acid BH and its intermediates: conjugated linoleic acid (CLA) and trans-C18:1. Additionally, we compared the effects of seed extrusion with the 6 combinations of unheated and roasted oils and seeds. None of the treatments was efficient to protect linoleic acid from BH. Soybean oil resulted in higher trans-11 isomer production than seeds: 5.7 and 1.2 times higher for cis-9,trans-11 CLA and trans-11 C18:1, respectively. A 125°C, 0.5-h roasting increased trans-11 isomer production by 11% compared with no heating and 6-h roasted fat. Extrusion of seeds was more efficient to increase trans-11 C18:1 production than seed roasting, leading to values similar to oils. For other fatty acids, including cis-9,trans-11 CLA, extrusion resulted in similar balances to seeds (mainly 0.5-h-roasted seeds). Extruded oilseeds would be more efficient than roasted seeds to produce trans-11 C18:1; nevertheless, effects of conditions of extrusion need to be explored.

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“…Moreover, extrusion results in a slow-release of linoleic acid from full-fat soybeans in the rumen (Peterson et al, 2002), with little effect on ruminal fermentation (Scott et al, 1991). However, previous results have shown that extrusion of canola seeds has no effect on total tract apparent digestibility, but it decreases milk fat concentration (Neves et al, 2009), which may result in a potential negative effect of extruding canola seeds on ruminal digestion.…”

Section: Introductionmentioning

confidence: 62%

“…Results from a previous experiment (Neves et al, 2009) showed that extrusion of canola seeds increased milk fat concentration of trans11-18:1 to a lower extent with, than without, lignosulfonate treatment (113 versus 150%) and that concentrations of cis9, trans11 conjugated linoleic acid and polyunsaturated fatty acids were similar between treatments. However, the concentration of trans11-18:1 increased with extrusion of full fat soybeans but not with lignosulfonate treatment and concentrations of cis9, trans11 conjugated linoleic acid and polyunsaturated fatty acids tended (P = 0.08 and P = 0.06, respectively) to increase with lignosulfonate treatment of full fat soybeans (Neves et al, 2007). Taken together, these results suggest that it is possible to modify the milk fatty acid composition by feeding extruded oilseeds, but the effect of lignosulfonate treatment on the milk fatty acid profile seems to differ depending on the type of oilseed treated.…”

Section: Introductionmentioning

confidence: 91%

“…Cows were weighed on the first and last days of each experiment period. A full description of the four diets was given by Neves et al (2009). Briefly, the four total mixed diets (Table 1) consisted of supplements based on non-extruded canola seeds, extruded canola seeds, non-extruded canola seeds treated with 50 g/kg DM lignosulfonate or extruded canola seeds treated with 50 g/kg DM lignosulfonate.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Rumen fermentation and nutrient flow to the omasum in Holstein cows fed extruded canola seeds treated with or without lignosulfonate

Santos

Neves

et al. 2012

R. Bras. Zootec.

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-Four multiparous Holstein cows averaging 548 kg of body weight and 74 d in lactation were used in a Latin square design with four 21-d experimental periods to determine effects of feeding extruded versus non-extruded canola seed, with or without 50 g/kg lignosulfonate on rumen fermentation, nutrient flow to the omasum, and degradability of dry matter (DM) and N of each diet. The DM effective degradability increased with extrusion and lignosulfonate treatment had no effect.The effective degradability of N was similar between diets. Lignosulfonate treatment of extruded versus non-extruded canola seeds decreased ruminal and total tract apparent digestibility of organic matter. The lowest apparent ruminal and highest intestinal digestibilities of protein, expressed as a percentage of N intake were observed for cows fed extruded canola seeds without lignosulfonate. Lignosulfonate treatment and extrusion had no effect on pH and concentrations of ammonia N and volatile fatty acids in the rumen. Results suggest that extruded canola seed untreated with formaldehyde may stimulate efficiency of microbial protein synthesis and is an effective means of increasing the availability of protein in the small intestine without affecting the total tract apparent digestibility of protein.

show abstract

Intake, whole tract digestibility, milk production, and milk composition of Holstein cows fed extruded soybeans treated with or without lignosulfonate

Cited by 26 publications

References 28 publications

Produção e composição química do leite, consumo e digestibilidade de forragens tropicais manejadas em sistema de lotação intermitente

Produção e composição química do leite, consumo e digestibilidade de forragens tropicais manejadas em sistema de lotação intermitente

Effects of the heating process of soybean oil and seeds on fatty acid biohydrogenation in vitro

Rumen fermentation and nutrient flow to the omasum in Holstein cows fed extruded canola seeds treated with or without lignosulfonate

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