Effect of Dietary Organic Acids and Botanicals on Metabolic Status and Milk Parameters in Mid–Late Lactating Goats

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.

Application of multi-omics to investigate the effect of Pinus koraiensis cone essential oil on rumen methane emission, microbial community, and metabolites

“…[16], we found no signi cant differences between the CON and PEO groups regarding ALT/SGPT (a marker of liver health; [21]) and creatinine (a marker of kidney health; [22]). Serum metabolomics analysis revealed a correlation between 3-indoxylsulfate and various genera, indicating that this metabolite is primarily derived from the microbiota and linked to tryptophan metabolism.…”

Oral administration of Pinus koraiensis cone essential oil reduces rumen methane emission by altering the rumen microbial composition and functions in Korean native goat (Capra hircus coreanae)

“…In contrast, our study showed that PEO oral administration significantly increased the concentrations of albumin, ALT/SGPT, and creatinine. Liver health is associated with ALT/SGPT activity, and kidney health is associated with creatinine ( 72 , 73 ). In the present study, higher ALT/SGPT and creatinine concentrations were observed in the PEO group, indicating that PEO oral administration affects the basic metabolic function in animals, which resulted in metabolic stress of the liver and kidneys.…”

Mathematical Models to Predict Dry Matter Intake and Milk Production by Dairy Cows Managed under Tropical Conditions

“…Furthermore, it is important to note that the cows used in the three experiments had different diets, which could lead to varying intake levels. Factors such as hay quality [29], feed additive usage [30], and forage quality [31] have been shown to potentially alter the intake patterns of production animals. It is widely recognized that a diverse database can enhance the predictive capacity and comprehensiveness of the generated equations, as noted in recent studies [32][33][34][35][36].…”