Inclusion of lactobionic acid in the diet of dairy cows | Laktobionskābes šķīduma iekļaušana slaucamo govju barībā
2021
Ruska, D., Latvia Univ. of Life Sciences and Technologies, Jelgava (Latvia). Faculty of Agriculture | Zagorska, J., Latvia Univ. of Life Sciences and Technologies, Jelgava (Latvia). Faculty of Food Technology | Ciprovica, I., Latvia Univ. of Life Sciences and Technologies, Jelgava (Latvia). Faculty of Food Technology | Zegrja, J., Ruķi, ZS, Ruķi, Mālpils Parish, Sigulda Municipality (Latvija) | Krilovs, V., Jaunpils pienotava, AS, Jaunpils, Jaunpils Parish, Tukuma Municipality (Latvia)
Lactobionic acid (LBS) is a high value-added product derived from whey. LBS is an organic acid, which due to its various properties has great potential in the production of food and feed products. In Latvia, it is a relatively innovative product, which has not been used in animal feeding so far, therefore data on its impact on the productivity of dairy cows is not available. The aim of the study was to evaluate the effect of lactobionic acid on the productivity of dairy cows. The study was conducted on two groups of lactating dairy cows: control and experimental. Holstein black and white and Holstein red breed cows from different lactations were used, but they all were up to 100th day in milk. Total mixed ration containing molasses was used for the control group, but in the experimental group feed molasses was replaced with LBS (8.60 g LE−1). Milk yield, fat, total protein and energy corrected milk did not differ significantly (p is greater than 0.05) between groups. Ratio of milk fat to total protein was in optimal level for the experimental group, but in the control group the risk of acidosis was observed. The milk urea content was 18.6 mg dLE−1 in the control and 20.2 mg dLE−1 in the experimental group. The results of the study indicate the possibility of successful application of LBS in dairy cows feeding.
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