Introductory Chapter: Dairy By-Products - Why Should We Care?

Gigli, Isabel; Calafat, Mario Jose

doi:10.5772/intechopen.86594

Cited by 1 publication

(2 citation statements)

References 18 publications

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“…The dairy industry by-product, whey, can be acidic or sweet depending on casein precipitation. It has been estimated that whey production worldwide is around 160 million tons per year and only 30-50% of this amount is used efficiently [37,38]. It is known that whey has an undesirable environmental impact on soil and water due to its high mineral and lactose concentrations, and it is considered to be a potential environmental pollutant [37,39].…”

Section: Introductionmentioning

confidence: 99%

“…It has been estimated that whey production worldwide is around 160 million tons per year and only 30-50% of this amount is used efficiently [37,38]. It is known that whey has an undesirable environmental impact on soil and water due to its high mineral and lactose concentrations, and it is considered to be a potential environmental pollutant [37,39]. The valorization of AW is limited due to its high acidity; however, it could be effectively applied in supplements for animal nutrition preparation [40].…”

Section: Introductionmentioning

confidence: 99%

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Antimicrobial and Mycotoxin Reducing Properties of Lactic Acid Bacteria and Their Influence on Blood and Feces Parameters of Newborn Calves

Zavistanaviciute,

Ruzauskas,

Antanaitis

et al. 2023

Animals

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The aim of this study was to evaluate the influence of in acid whey (AW) multiplied Lactiplantibacillus plantarum LUHS135 (L.pl135), Lacticaseibacillus paracasei LUHS244 (L.pc244), and their biomass combination on newborn calves’ feces and blood parameters. Additionally, the antimicrobial and mycotoxin-reducing properties and the resistance to antibiotics of the tested lactic acid bacteria (LAB) strains were analyzed. In order to ensure effective biomass growth in AW, technological parameters for the supplement preparation were selected. Control calves were fed with a standard milk replacer (SMR) and treated groups (from the 2nd day of life until the 14th day) were supplemented with 50 mL of AWL.pl135, AWL.pc244, and AWL.pl135×L.pc244 (25 mL AWL.pl135 + 25 mL AWL.pc244) in addition to SMR. It was established that L.pl135 and L.pc244 possess broad antimicrobial activities, are non-resistant to the tested antibiotics, and reduce mycotoxin concentrations in vitro. The optimal duration established for biomass growth was 48 h (LAB count higher than 7.00 log10 CFU mL−1 was found after 48 h of AW fermentation). It was established that additional feeding of newborn calves with AWL.pl135, AWL.pc244, and AWL.pl135×L.pc244 increased lactobacilli (on average by 7.4%), and AWL.pl135 and AWL.pc244 reduced the numbers of Enterobacteriaceae in calves’ feces. The tested supplements also reduced the lactate concentration (on average, by 42.5%) in calves’ blood. Finally, the tested supplements had a positive influence on certain health parameters of newborn calves; however, further research is needed to validate the mechanisms of the beneficial effects.

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