Effect of Dietary Organic Acids and Botanicals on Metabolic Status and Milk Parameters in Mid-Late Lactating Goats. in Animals : an open access journal from MDPI / Animals (Basel). 2023 Feb 22;13(5):797. doi: 10.3390/ani13050797.
2023
ASL Novara
Tipo pubblicazione
Journal Article
Autori/Collaboratori (15)Vedi tutti...
Giorgino A
Department of Veterinary Sciences, University of Turin, 10095 Grugliasco, Italy.
Raspa F
Department of Veterinary Sciences, University of Turin, 10095 Grugliasco, Italy.
Valle E
Department of Veterinary Sciences, University of Turin, 10095 Grugliasco, Italy.
et alii...
Abstract
The microencapsulated mixture of organic acids and pure botanicals (OA/PB) has never been evaluated in goats. The aim of this study was to extend the analysis to mid-late lactating dairy goats, evaluating the effects of OA/PB supplementation on the metabolic status, milk bacteriological and composition characteristics, and milk yield. Eighty mid-late lactating Saanen goats were randomly assigned to two groups: one group was fed the basal total balanced ration (TMR) (CRT; n = 40) and the other was fed a diet that was TMR supplemented with 10 g/head of OA/PB (TRT; n = 40) for 54 days during the summer period. The temperature-humidity index (THI) was recorded hourly. On days T0, T27, and T54, the milk yield was recorded, and blood and milk samples were collected during the morning milking. A linear mixed model was used, considering the fixed effects: diet, time, and their interaction. The THI data (mean ± SD: 73.5 ± 3.83) show that the goats did not endure heat stress. The blood parameters fell within the normal range, confirming that their metabolic status was not negatively influenced by OA/PB supplementation. OA/PB increased the milk fat content (p = 0.04) and milk coagulation index (p = 0.03), which are effects that are looked on as favorable by the dairy industry in relation to cheese production.
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PMID : 36899655
DOI : 10.3390/ani13050797
Keywords
sustainable farming; supplementation; nutrition; milk performance; dairy goats; blood profile;