Production, composition and processing of milk from ewes fed soybean seeds

Zeola, Nívea Maria Brancacci Lopes; Sobrinho, Américo Gárcia da Silva; Hatsumura, Carla Tiemi; Borghi, Thiago Henrique; Viegas, Carlos Renato; Barbosa, José Carlos

doi:10.1590/s1806-92902015000400003

Cited by 3 publications

(3 citation statements)

References 24 publications

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“…Sheep milk has advantages over cow milk because it contains higher levels of protein, lower levels of cholesterol, and large amounts of vitamins A and E, which act as antioxidants (Khan et al, 2019). With sheep milk, producing 1 kg of cheese takes approximately 4 kg of milk, compared to 8 to 10 kg for cows (Zeola et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Identification of the association between <i>FABP4</i> gene polymorphisms and milk production traits in Sfakia sheep

Ibrahim

Tzanidakis²,

Sotiraki³

et al. 2019

Arch. Anim. Breed.

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The aim of this study was to estimate the effect of variation in the fatty acid binding protein 4 gene (FABP4) on milk production traits in Greek Sfakia sheep. Polymerase chain reaction – single-stranded conformational polymorphism (PCR-SSCP) analysis was used to genotype a total of 374 Sfakia ewes for two regions of FABP4 located around exon 2–intron 2 (Region 1) and exon 3–intron 3 (Region 2). Each month, for a period of 6 months, milk samples were collected from the ewes to measure total milk yield, fat content, protein content, lactose content, non-fat solid content, pH, and somatic cell count (SCC). A general linear model was used to test the association between the variation observed in FABP4 and milk production traits. Four gene variants (A1–A4) were found in Region 1 and two variants (C1–C2) were found in Region 2. In the first region, the FABP4 genotype significantly affected (P<0.05) non-fat solid levels, fat content, and SCC. The presence of the A2 variant was significantly associated (P<0.05) with decreased SCC, while the presence of A4 was significantly associated with decreased milk yield (P<0.01), increased non-fat solid content (P<0.05), decreased fat content (P<0.01), increased lactose content (P<0.05), and increased pH (P<0.05). In the second region, FABP4 genotype had an effect (P<0.05) on protein content and the presence of the C2 variant was associated (P<0.05) with increased protein content, decreased SCC, and lower pH. The results suggest an association between variation in ovine FABP4 and milk production traits in Greek Sfakia sheep. Nevertheless, further analyses in independent sheep populations of increased size will strengthen these findings.

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Section: Introductionmentioning

confidence: 99%

Identification of the association between <i>FABP4</i> gene polymorphisms and milk production traits in Sfakia sheep

Ibrahim

Tzanidakis²,

Sotiraki³

et al. 2019

Arch. Anim. Breed.

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“…Thus, based on the methodologies described by previous studies [ 12 , 14 – 16 ], necessary modifications were made to the procedure for the extraction of lipids from sheep’s milk, as there were stages of the process where there were possibilities for improvement or the need to adapt to our laboratory routine.…”

Section: Discussionmentioning

confidence: 99%

“…The results were subjected to analysis of variance (ANOVA), and a comparison of treatment means was done by the Tukey test, adopting a significance level of 5%. Statistical analyses were performed using SAS Statistical Analysis Systems [13] version 9.0.…”

Section: Analysis By Gc-fidmentioning

confidence: 99%

Comparison of analytical methods for the fatty acid profile in ewes’ milk

Soares

Ítavo

et al. 2022

PLoS ONE

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Studies comparing methodologies for fatty acids are very important, since they can influence the quality and final quantification of the lipid fraction. Objective—to compare different extraction methods for total lipids and to evaluate the effect of these methodologies on the quantitative composition of fatty acids in milk of lactating ewes raised in tropical pastures. The methodologies used were simple direct transesterification, using the HPLC grade organic solvent n-hexane, Bligh; Dyer (cold extraction, extracting mixture proportions 5, 10, and 15 mL in a ratio of 2:1:1 (v/v/v) of chloroform-methanol-water). The fatty acid methyl esters were separated by gas chromatography coupled with a flame ionization detector (GC-FID). The results show that there was no significant difference (p <0.05) in the total lipid content between the extraction methods. However, the Bligh’s method; Dyer obtained the best yield of lipids to be extracted from ewe’s milk, since the volume with 15 mL of the extraction solution was able to identify 87% of the chromatographic peaks. It was also observed that ewe’s milk has a higher percentage of palmitic, stearic and oleic fatty acids, with percentages of 20.1%, 15.5% and 33.1%, respectively. Therefore, an extraction mixture with a volume of 15 mL used in this study may be an alternative to perform the extraction of milk fat from high lactating ewes in tropical pastures as a routine method, as it expresses the best lipid content of this food.

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Lacaune sheep

Alderson¹

2022

CABI Compendium

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Production, composition and processing of milk from ewes fed soybean seeds

Cited by 3 publications

References 24 publications

Identification of the association between <i>FABP4</i> gene polymorphisms and milk production traits in Sfakia sheep

Identification of the association between <i>FABP4</i> gene polymorphisms and milk production traits in Sfakia sheep

Comparison of analytical methods for the fatty acid profile in ewes’ milk

Lacaune sheep

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Production, composition and processing of milk from ewes fed soybean seeds

Cited by 3 publications

References 24 publications

Identification of the association between &lt;i&gt;FABP4&lt;/i&gt; gene polymorphisms and milk production traits in Sfakia sheep

Identification of the association between &lt;i&gt;FABP4&lt;/i&gt; gene polymorphisms and milk production traits in Sfakia sheep

Comparison of analytical methods for the fatty acid profile in ewes’ milk

Lacaune sheep

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Product

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Identification of the association between <i>FABP4</i> gene polymorphisms and milk production traits in Sfakia sheep

Identification of the association between <i>FABP4</i> gene polymorphisms and milk production traits in Sfakia sheep