Obtaining Goats’ Dairy Products Enriched in Healthy Fatty Acids by Valuing Linseed or Hempseed as Dietary Ingredients

Ana Elena Cismileanu, Smaranda Mariana Toma (), Mariana Ropota, Costin Petru Dragomir, Gabriela Maria Cornescu and Catalin Dragomir
Additional contact information
Ana Elena Cismileanu: Laboratory of Physiology of Animal Nutrition, National Research—Development Institute for Animal Biology and Nutrition, 1 Calea Bucuresti, 077015 Balotesti, Romania
Smaranda Mariana Toma: Laboratory of Animal Nutrition and Biotechnologies, National Research—Development Institute for Animal Biology and Nutrition, 1 Calea Bucuresti, 077015 Balotesti, Romania
Mariana Ropota: Laboratory of Quality of Feed and Food, National Research—Development Institute for Animal Biology and Nutrition, 1 Calea Bucuresti, 077015 Balotesti, Romania
Costin Petru Dragomir: Laboratory of Molecular Biology, National Research and Development Institute for Food Bioresources, 5th Ancuta Baneasa Str., 2nd District, 020323 Bucharest, Romania
Gabriela Maria Cornescu: Laboratory of Physiology of Animal Nutrition, National Research—Development Institute for Animal Biology and Nutrition, 1 Calea Bucuresti, 077015 Balotesti, Romania
Catalin Dragomir: Laboratory of Physiology of Animal Nutrition, National Research—Development Institute for Animal Biology and Nutrition, 1 Calea Bucuresti, 077015 Balotesti, Romania

Agriculture, 2024, vol. 14, issue 9, 1-13

Abstract: The study aimed to assess the effects of including linseeds or hempseeds in the diets of late lactation Murciano-Granadina dairy goats on the nutritional quality of the milk and cheese fat, expressed by the fatty acids profile and the healthy lipid indices. Thirty-six goats were randomly distributed in 3 groups of 12 animals each, according to a 3 × 3 Latin square design, and fed three different diets: group CON (control, with sunflower meal, 11.5% DM basis); group LIN, where sunflower meal was replaced by linseed; and group HMP, where sunflower meal was replaced by hempseeds. The replacement had no effects on the milk yields and the milk protein content as no significant differences were detected among groups. The significant increase of the fat content in the case of the LIN and HMP groups was accompanied by significant decreases in saturated fatty acids concentration and very significant increases in monounsaturated fatty acids. The content of n3 and n6-PUFAs (polyunsaturated fatty acids) increased, mainly due to a 4.1 times higher proportion of alpha-linolenic acid (ALA; C 18:3n-3) in LIN diet milk and a 1.3 times higher proportion of linoleic acid (LA; C 18:2n6c) in HMP diet milk. The conjugated linoleic acid (CLA; isomer c 9, t 11) was 1.9 times higher for the LIN diet and 5.05 times higher for the HMP diet. Feeding either linseed or hempseeds contributed to the reduction of the atherogenic and thrombogenic indices, increased the hypocholesterolemic: hypercholesterolemic ratio as well as the proportion of other desired fatty acids in the milk fat. The improved nutritional quality of milk, which has potentially far-reaching human health benefits, is maintained in cheese through the increase of the n3 and n6-PUFAs, especially for the LIN diet where the n6/n3 ratio decreased significantly, compared with the CON diet (3.62 vs. 6.88). The CLA concentration was significantly higher ( p < 0.001) for the HMP cheese compared with the CON diet (1.89% vs. 0.78%). These effects highlight the opportunity of obtaining dairy products with improved nutritional quality using local feed resources.

Keywords: CLA; fatty acids; goat cheese; hempseed; linseed; milk (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2024
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.mdpi.com/2077-0472/14/9/1498/pdf (application/pdf)
https://www.mdpi.com/2077-0472/14/9/1498/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jagris:v:14:y:2024:i:9:p:1498-:d:1469265

Access Statistics for this article

Agriculture is currently edited by Ms. Leda Xuan

More articles in Agriculture from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().