Immune status of piglets for chemoprophylaxis of nematodoze-protozoan invasion and use of probiotic 'Lactovet'
| Autor: | R. A. Peleno |
|---|---|
| Jazyk: | English<br />Russian<br />Ukrainian |
| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | Науковий вісник Львівського національного університету ветеринарної медицини та біотехнологій імені С.З. Ґжицького: Серія Ветеринарні науки, Vol 20, Iss 88, Pp 167-172 (2018) |
| Druh dokumentu: | article |
| ISSN: | 2518-7554 2518-1327 |
| Popis: | The immune status of piglets for chemoprophylaxis of nematodoze-protozoan invasion and use of probiotic “Lactovet” was investigated. For the experiment, 4 groups of piglets were formed, 5 animals in each. For piglets of the first group, the probiotic was prescribed for 7 days before treatment with amphene, the second group – for 7 days, starting from the day of setting the antiparasitic preparation and the third one - for 7 days, starting the day after the last antiparasitic treatment. Lactovet was given with drinking water twice a day at a dose of 1 cm3/dm3 of water. The control group of piglets did not use the probiotic. It was established that the giving of probiotics “Lactovet” to piglets did not cause probable intergroup differences in the content of the total number of lymphocytes, however, in comparison with control their number was lower in the first group by 2.3%, in the second – by 1.9% and the third – by 4.7%. The decrease in lymphocytes was due to a possible decrease in the content of B-lymphocytes, the difference being on 28 days of the search, compared with the beginning of the experiment, in the control group it was 12.4% (P < 0.05), in the first one – 16.8% (P < 0.01), in the second – 15.9% (P < 0.01) and in the third group – 18.8% (P < 0.01). Compared with the beginning of the experiment, there was a marked increase in the T-lymphocyte content in the blood of piglets in the second and third groups after the using of “Amphene” and “Lactovet”, which was due to the growth of T-helpers at 7th day, respectively, 5.0 and 5.1%, at 14th day – 8.6 and 10.5%, at 21st day – 12.8 and 13.3%, and at 28th day – 14.8 and 18.5%. The indicated changes influenced the immunoregulatory index, which in the control group was increased, compared with the beginning of treatment, at 7th day in 1.32 times, at 14th day – 1.68, at 21st day – 1.93 and for 28th day – 2.15 times, in the first group, respectively, into 1.21, 1.60, 2.04 and 2.26 times, in the second one into 1.36, 1.74, 2.18 and 2.44 times, and in the third one into 1.39, 1.96, 2.43 and 3.02 times. The use of the probiotic “Lactovet” for the chemoprophylaxis of nematodoze-protozoosic invasion has led to a significantly lower level of G-class immunoglobulins in comparison with the beginning of the experiment, at 28th day in piglets of control (P < 0.05) and the first group (P < 0.01), at 21st and 28th days – in piglets of the second group (P < 0.01) and at 14th (P < 0.05), at 21st and 28th days (P < 0.01) – in pigs of the third group, immunoglobulins of the class M – in the second group at 28th day (P < 0.01), and the third one was at 21st (P < 0.05) and 28th days (P < 0.01), and class A of immunoglobulins only in piglets of the third group (P < 0.001, P < 0.01) starting from 14th day. The use of the probiotic “Lactovet” contributed to the growth of BABS and LABS and the reduction of CABS Possibly higher BABS was at 28th day in piglets of all studied groups and the difference in the control group, compared to the beginning of the experiment was 9.8% (P < 0.05), in the first – 13.7% (P < 0.05), in the second 12.8% (P < 0.05) and in the third group – 14.6% (P < 0.01). The probable difference (P < 0.05) of CABS compared to the beginning of the experiment was set up only at 28th day in piglets of the third group. |
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