Evaluation of passive transfer in goat kids with Brix refractometer and comparison with other semiquantitative tests

Abstract

The aim of this study was to evaluate the passive transfer (PT) status of goat kids by Brix refractometry and compare the results with other semiquantitative tests (total protein-TP, glutaraldehyde coagulation test-GCT, and gamma-glutamyltransferase-GGT) and immunoglobulin G (IgG). The study was conducted on 75 goat kids born from 47 Saanen goats. The blood samples were collected from the kids on day 0 (presuckling) and on the 1st, 2nd, and 3rd days after birth. The Brix% and TP concentrations were measured with refractometers, and GGT activity was measured using a dry chemistry system. The duration of the GCT was determined in the first 60 min. The serum IgG concentration was measured by goat IgG ELISA kit. On the 1st and 2nd days, serum Brix% in the kids was measured as 9.33 ± 0.17% and 9.17 ± 0.14%, respectively. In the 1st and 2nd day serum samples of the kids, IgG was 817.76 ± 37.34 mg/dL and 1173.29 ± 47.81 mg/dL, respectively, and GGT was 1298.07 ± 133.29 IU/L and 692.26 ± 79.86 IU/L, respectively. The Brix refractometer was found to be more sensitive for detection of PT status in kids on the first and second days after birth, such as TP and GCT, whereas GGT, as an early indicator of PT, was useful only on the first day after birth. We conclude that the Brix refractometer could be used to determine the PT status in goat kids and Brix measurements lower than 8.6%, 9.2%, and 9.3% indicate failure of PT in 1-, 2-, and 3-day-old kids, respectively.

Milk Replacer Supplementation with Docosahexaenoic Acid from Microalgae Does Not Affect Growth and Immune Status in Goat Kids

“…In the present study, colostrum feeding during the first 24 h of life increased the IgG and IgM concentrations in the three studied groups, reaching the highest concentrations on day 2 of life. These levels were similar to those described by Moreno-Indias et al [ 10 ] and Rodríguez et al [ 24 ] in the same breed and those described by Mellado et al [ 43 ] and Batmaz et al [ 44 ] in Granadina and Saanen breeds, respectively. However, this passively transferred protection only lasts for a few weeks, where ruminants must be able to have an adequate immune system development in order to synthesize their own defenses.…”

Hematological and biochemical parameters of premature kids of goats subjected to different dexamethasone protocols

“…There was no significant difference in the PT levels of the experimental groups, showing that the different dexamethasone protocols did not influence protein absorption by the kids. In addition, the highest values of PT observed at T24h and T48h in all the experimental groups were similar to those for goats born through normal delivery (BATMAZ et al, 2019), and were above the cutoff point of 5.4 g/dL established by O' BRIEN & SHERMAN (1993). This Ciência Rural, v.52, n.6, 2022.…”

Can intramammary infections change immunoglobulins and acute phase proteins of colostrum and transition milk in dairy goats?

“…The GGT level in milk serum can be a good indicator of IgG levels in goat colostrum and may be used as a marker for evaluating colostrum quality in this species (Batmaz et al, 2019). We concluded that the presence of intramammary infections does not influence GGT concentrations because in our study, the GGT values did not differ significantly between the two groups.…”