2014
DOI: 10.1590/1678-6886
|View full text |Cite
|
Sign up to set email alerts
|

Desempenho produtivo e perfil de ácidos graxos do leite de vacas que receberam níveis crescentes de óleo de girassol em dietas à base de capim-elefante

Abstract: RESUMOEste experimento teve como objetivo principal avaliar as alterações no perfil de ácidos graxos do leite decorrentes do fornecimento de diferentes níveis de óleo de girassol (OG) para vacas leiteiras alimentadas com dietas completas à base de capim-elefante. Doze vacas da raça Holandesa receberam quatro níveis de OG na dieta (0; 1,3; 2,5 e 3,7% da MS) em delineamento quadrado latino 4 x 4. Não houve efeito (P>0,05) dos níveis de OG sobre o consumo de MS, a produção de leite ou os teores de sólidos do leit… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1
1
1

Citation Types

2
16
0
6

Year Published

2017
2017
2021
2021

Publication Types

Select...
7

Relationship

1
6

Authors

Journals

citations
Cited by 15 publications
(24 citation statements)
references
References 12 publications
2
16
0
6
Order By: Relevance
“…This hypothesis is supported by the negative correlations (r = -0.52 to -0.97, P<0.05) between the sum of the milk contents of de novo-synthesized FAs with those of several C18-unsaturated FAs (e.g., rumenic; linoleic; trans-9, cis-11 CLA; trans-9 C18:1; trans-10 C18:1; vaccenic; trans-12 C18:1; oleic; cis-11 C18:1, cis-12 C18:1 and others). The reduction in the milk contents of de novo-synthesized FAs in response to supplementation of diets with free vegetable oils is also well documented in the literature (EIFERT et al, 2006;RIBEIRO et al, 2014;LOPES et al, 2015). Comparing the control ration with the 4.5% SO ration, the reductions (P<0.0001) in the milk contents of lauric, myristic and palmitic acids were, respectively, 111%, 85% and 59%.…”
Section: Itemmentioning
confidence: 80%
See 1 more Smart Citation
“…This hypothesis is supported by the negative correlations (r = -0.52 to -0.97, P<0.05) between the sum of the milk contents of de novo-synthesized FAs with those of several C18-unsaturated FAs (e.g., rumenic; linoleic; trans-9, cis-11 CLA; trans-9 C18:1; trans-10 C18:1; vaccenic; trans-12 C18:1; oleic; cis-11 C18:1, cis-12 C18:1 and others). The reduction in the milk contents of de novo-synthesized FAs in response to supplementation of diets with free vegetable oils is also well documented in the literature (EIFERT et al, 2006;RIBEIRO et al, 2014;LOPES et al, 2015). Comparing the control ration with the 4.5% SO ration, the reductions (P<0.0001) in the milk contents of lauric, myristic and palmitic acids were, respectively, 111%, 85% and 59%.…”
Section: Itemmentioning
confidence: 80%
“…In addition, it may cause an increase in the formation of FAs intermediates of ruminal biohydrogenation, such as trans-10, cis-12 CLA (EIFERT et al, 2006) and trans-9, cis-11 CLA (RIBEIRO et al, 2014), which are associated with the inhibition of lipogenesis in the mammary gland of cows (BERNARD et al, 2008;SHINGFELD et al, 2010).…”
Section: Introductionmentioning
confidence: 99%
“…Samples of feeds, refusals, and feces were analyzed for DM (method 934.01) according to AOAC (2005) and ether extract (EE) according to AOCS (2004). Also, samples of diet ingredients and orts were taken and stored at -18 °C, for further fatty acid (FA) determination by the gas-phase chromatography technique (Tables 1 and 2), as described by Ribeiro et al (2014). The analysis was performed at the laboratory of chromatography of Embrapa Gado de Leite (Juiz de Fora, Minas Gerais, Brazil) using a 6890 N gas-phase chromatograph (Agilent Technologies Inc., Santa Clara, California, USA), equipped with HP-FFAP column (25 m × 0.20 m × 0.33 μm; Agilent Technologies, Santa Clara, California, USA) and flame ionization detector.…”
Section: Methodsmentioning
confidence: 99%
“…Milk samples were collected, transferred to bottles without preservatives, and stored at -18 °C, for the future determination of FA profile at the laboratory of chromatography of Embrapa Gado de Leite. This FA profile determination was performed according to the description by Ribeiro et al (2014), in a 7820 A gas-phase chromatograph (Agilent Table 2. Fatty acid (FA) composition of individual feeds.…”
Section: Methodsmentioning
confidence: 99%
See 1 more Smart Citation