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Feeding Calcium Salts of Linseed Oil on Productive Performance and Milk Fatty Acid Profile in Grazing Dairy Cows
- Source :
- Open Journal of Animal Sciences 10 : 761-781 (2020), INTA Digital (INTA), Instituto Nacional de Tecnología Agropecuaria, instacron:INTA
- Publication Year :
- 2020
- Publisher :
- Scientific Research Publishing, Inc., 2020.
-
Abstract
- The objective of this study was to determine the effect of supplying calcium salts of linseed oil (Ca-FA) rich in omega-3 (α-linolenic acid) on the production and chemical composition of milk and its nutraceutical value in dairy cows in early lactation. The trial lasted 12 weeks (2 weeks for adaptation to lipids and 10 weeks of data collection). A total of 36 Holstein dairy cows with 58.0 ± 17.0 days in milk (DIM), 594.1 ± 92.4 kg BW, 2.6 ± 1.5 parity and 38.9 ± 9.3 kg milk day-1 were used in a randomized complete block design. The treatments were: 1) Omega-3 (O3): 5.2 kg DM day-1 of concentrate including 0.7 kg DM of Ca-FA + 13.5 kg DM day-1 of partial mixed ration (PMR) + 12 kg DM day-1 of alfalfa pasture (Medicago sativa) and 2) Control (C): diet similar to O3 but lipid supplementation was replaced by cracked corn grain so that the diets were isoenergetic. No treatment effect was detected (P > 0.05) for any milk production and composition variables, except for urea in milk that was slightly higher in O3 (P = 0.02). The treatment × week interaction was significant (P < 0.05) for fat yield and content, with differences (P < 0.01) only in the 3rd week of the data collection period in favor of group C (1.39 vs. 1.13 kg·day-1 and 3.86% vs. 3.23% for fat yield and content, respectively). Total DMI and PMR were similar (P > 0.05) between treatments. Concentrate intake was higher (P < 0.01) in C compared with O3. Pasture DMI tended (P = 0.06) to be greater for cows that received the O3 treatment compared with C. Total metabolizable energy (ME) intake was similar (P = 0.44) between treatments. No treatment effect was detected (P > 0.05) in rumen environment parameters. Supplementation with Ca-FA reduced (P < 0.05) the hypercholesterolemic fraction of milk (C12:0, C14:0 and C16:0, -13.6%, -7.4% and -9.0%, respectively). The concentration of α-linolenic acid (C18:3n-3) increased (108%, P < 0.01) in O3 group compared with group C. The absence of negative effects of lipids on the fat content of milk and ruminal fermentation suggests that protection by saponification was effective. The supplementation with Ca-FA (0.85 kg·day-1) improved the healthy value of the milk. EEA Rafaela Fil: Moreno González, Yaliska. Universidad de Buenos Aires. Facultad de Agronomía; Argentina Fil: Iorio, Jesica. Universidad de Buenos Aires. Facultad de Agronomía; Argentina Fil: Olmeda, María Florencia. Universidad Nacional de Lomas de Zamora. Facultad de Ciencias Agrarias; Argentina Fil: Curletto, Dino. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rafaela; Argentina Fil: Scandolo Lucini, Daniel Edgardo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rafaela; Argentina Fil: Maciel, Martin Guillermo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rafaela; Argentina Fil: Cuatrin, Alejandra. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rafaela; Argentina Fil: Palladino, Rafael Alejandro. Universidad Nacional de Lomas de Zamora. Facultad de Ciencias Agrarias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Perez, Carolina Daiana. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto Tecnología de Alimentos; Argentina Fil: Salado, Eloy Eduardo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Rafaela; Argentina
- Subjects :
- Linseed Oil
food.ingredient
Randomized block design
Alimentación de los Animales
02 engineering and technology
Calcio
Rumen
chemistry.chemical_compound
Aceite de Linaza
Animal science
food
Linseed oil
Lactation
Pastoreo
Dairy Cattle
medicine
Ácidos Grasos
Supplements
Dairy cattle
chemistry.chemical_classification
Fatty Acids
0402 animal and dairy science
food and beverages
Fatty acid
04 agricultural and veterinary sciences
021001 nanoscience & nanotechnology
040201 dairy & animal science
Grazing
Leche
Milk
medicine.anatomical_structure
chemistry
Suplementos
Ganado de Leche
Urea
Animal Feeding
Calcium
Composition (visual arts)
0210 nano-technology
Subjects
Details
- ISSN :
- 21617627 and 21617597
- Volume :
- 10
- Database :
- OpenAIRE
- Journal :
- Open Journal of Animal Sciences
- Accession number :
- edsair.doi.dedup.....1a32416db72529a6f97f1ec8e3bcf66d