Browsing by Subject "Dairy"

Now showing 1 - 4 of 4
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    Can moderate levels of organic selenium in dairy cow feed naturally enrich dairy products
    (MDPI, 2020-12-01) Azorín, Irene; Madrid, Josefa; Martínez, Silvia; López, Marina; López Morales, María Belén; López, Miguel José; Hernández, Fuensanta; Tecnología de Alimentos, Nutrición y Bromatología
    This work studied the effect of dairy cow ration supplementation with inorganic plus organic Se on metabolic status, milk yield, and the quality of milk and dairy products, especially its Se content. Twenty multiparous Holstein Friesian lactating cows were assigned to two feeding treatments. The cows were fed with 22.5 kg dry matter (DM) of total mixed ration (11.75 kg DM of forage plus 10.75 kg DM of concentrate) by head. There were two different concentrates with the same Se content (0.240 mg/kg of ration DM) but with different Se sources: The control (CON) was supplemented with inorganic Se (sodium selenite); and the other (IOSe) was supplemented with sodium selenite plus organic Se (Sel-Plex®), at 0.144 and 0.096 mg Se/kg of ration DM, respectively. The results indicated that, in general, the IOSe treatment did not modify the metabolic profile, and even decreased the total oxidant status (p < 0.05) and did not lead to a deterioration of quality and yield of milk. However, milk and cheese from IOSe had higher Se content (an increase of 29.7% and 38.2%, respectively) than CON (p < 0.01), but this effect was not observed in yogurt. In general, physical or sensorial parameters of cheeses did not show differences between treatments. Moderate inorganic plus organic Se supplementation may be more effective than inorganic Se, increasing the Se content in milk and cheese, without causing a deterioration in quality or productive parameters.
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    Price Fluctuation, Protected Geographical Indications and Employment in the Spanish Small Ruminant Sector during the COVID-19 Crisis
    (MDPI, 2020-11-26) Vidaurreta, Irene; Orengo Femenia, Juan; De la Fe Rodríguez, Christian; González, José María; Gómez-Martin, Ángel; Benito López, Bernardino; Sanidad Animal
    This work assesses milk and meat price fluctuations from small ruminants during the coronavirus disease (COVID-19) crisis in Spain, using o cial data provided by the Interprofessional Dairy Organization (InLaC) and a representative sample of agricultural markets fixing prices per kilogram of lamb and goat kid meat. Data showed a drop in meat and goat milk prices during the period of confinement, which is only maintained for goat milk over the three following months. Similarly, analysis of data from the most important production areas, involving three protected geographical indications (PGI) of lamb meat, suggested that this quality label had a beneficial e ect on sales and price stability in times of crisis. On the other hand, despite the impact of the COVID-19 pandemic on the Spanish labor market, the small ruminant sector did not seem to be a ected in terms of the number of workers when comparing the period before and after the pandemic. All these factors are of interest for producers when making decisions regarding the management of flocks and adapting their marketing strategies for a down market or unexpected volatile circumstances.
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    Quantitative estimation of the impact of caprine arthritis encephalitis virus infection on milk production by dairy goats
    (Elsevier, 2013-02-04) Martínez-Navalón, Bernardo; Peris, Cristòfol; Gómez, Ernesto A.; Peris, Bernat; Roche, María Luz; Caballero, Concepción; Berriatua Fernández de Larrea, Eduardo; Goyena Salgado, Elena; Anatomía y Anatomía Patológica Comparadas
    This retrospective study investigated milk production losses associated with serological evidence (serostatus) of caprine arthritis encephalitis virus (CAEV) infection over one lactation in 4543 Murciano-Granadina goats from 22 herds in Spain. The seroprevalence of infection was 18%, ranging from 0% to 2% in 11 herds, 7% to 60% in 10 herds and was 100% in one herd. Seropositive does had significantly shorter lactations, produced less milk and milk fat, lactose and dry extract and had higher somatic cell counts than their seronegative counterparts, although differences in milk production between seropositive and sero negative animals were noted between herds. Mixed regression models confirmed the association between CAEV seropositivity and reduced milk production. The adjusted, least squares mean (LSM) test-day milk yield was 10% less in seropositive com pared to seronegative does and this difference varied according to lactation number. In contrast, differ ences in the LSM of milk fat, lactose and dry extract percentages between seropositive and seronegative goats were only between 0.1% and 0.2% and did not increase with lactation number. The findings of this study provide strong evidence that CAEV-infection can be a major cause of reduction in milk yield in goats and its control should be considered as part of dairy goat herd health schemes.
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    Short-Term Economic Impact of COVID-19 on Spanish Small Ruminant Flocks
    (MDPI, 2020-08-05) Vidaurreta, Irene; De la Fe, Christian; Orengo, Juan; Gómez-Martín, Angel; Benito, Bernardino; Sanidad Animal
    The human pandemic COVID-19 has rapidly spread around the world, leading to extreme control measures such as population confinement and industries activity closure, including tourism and restauration. Although small ruminants are not sanitary a ected, this situation might cause a negative economic impact on Spanish flocks. The data analyses provided by producers and slaughterhouses in the initial 60 days after COVID-19’s pandemic declaration, showed that while the dairy goat flocks su ered a substantial drop in milk prices, this impact was not seen in sheep milk, which remained almost stable. A price drop for lambs or goat kids was also reported. These data are in agreement with the unexpected drop of lambs and goat kids’ sacrifices in April, as reported by some slaughterhouses. We registered a short-term negative economic impact on Spanish small ruminant’s flocks after COVID-19’s pandemic declaration in the country. The long-term economic consequences still need to be studied to establish contingency plans for this type of sanitary crisis.