TY  - JOUR
AU  - Ljubobratović, Uroš
AU  - Kosanović, Dejana
AU  - Demeny, Ferenc Zoltan
AU  - Krajcsovics, Adrienn
AU  - Vukotić, Goran
AU  - Stanisavljević, Nemanja
AU  - Golić, Nataša
AU  - Jeney, Galina
AU  - Lukić, Jovanka
PY  - 2020
UR  - http://intor.torlakinstitut.com/handle/123456789/562
AB  - Weaning to inert diet in intensively reared pike-perch larvae is confronted with significant fish loss, which prevents successful commercialization of pike-perch production. Achievement of satisfactory feed quality and effective assimilation of nutrients by larval fish is the major challenge in larval production process. Aim of this study was to evaluate whether treatment of live and inert feed with lactobacilli could alleviate growth retardation associated with early weaning of pike-perch reared in recirculating system. Weaning started on 18th day post-hatching (DPH) either as sudden weaning (SW) or by co-administration of Anemia for six days (gradual weaning, GW). Prior to administration to fish, Anemia was treated with Lactobacillus salivarius BGHO1/Lb. reuteri BGGO6-55, while inert feed was treated with Lb. paracasei subsp. paracasei BGHN14/Lb. rhamnosus BGT10. Treatment with lactobacilli slightly raised neutral lipid level in Anemia nauplii, but significantly reduced their content in dry feed. Fish were sampled on the 24th DPH. Survival, morphometric indices, skeleton differentiation, digestive enzyme activity and opportunistic pathogenic bacteria level were assessed in whole fish specimens. GW fish were presented with better survival, body growth and phospholipase A2 (PLA2) activity. Alongside, Vibrio spp. growth was suppressed in these fish and skeleton development was improved, according to Alizarin Red staining and ColIA1/Sparc mRNA expression data. Lactobacilli application in GW fish correlated with an increase of survival, condition factor and growth rate, according to trypsin and chymotrypsin activities, indicating better utilization of dietary proteins for muscle building. In SW fish, lactobacilli elevated chymotrypsin activity, PLA2 to lipase activity ratio and improved survival and ossification, as evident from Alizarin Red staining and ColIA1/Sparc mRNA expression. This indicated improved fatty acid absorption and control of metamorphosis process. Furthermore, lactobacilli suppressed Vibrio spp. growth in SW fish. Aside from demonstrating the ability of lactobacilli to aid weaning in pike-perch larvae, this study indicated that different types of food treatment may direct fish growth in a predictable manner, allowing further cost-effective improvements of larval pike-perch rearing in intensive system.
PB  - Elsevier, Amsterdam
T2  - Aquaculture
T1  - The effect of live and inert feed treatment with lactobacilli on weaning success in intensively reared pike-perch larvae
VL  - 516
DO  - 10.1016/j.aquaculture.2019.734608
ER  - 

@article{
author = "Ljubobratović, Uroš and Kosanović, Dejana and Demeny, Ferenc Zoltan and Krajcsovics, Adrienn and Vukotić, Goran and Stanisavljević, Nemanja and Golić, Nataša and Jeney, Galina and Lukić, Jovanka",
year = "2020",
abstract = "Weaning to inert diet in intensively reared pike-perch larvae is confronted with significant fish loss, which prevents successful commercialization of pike-perch production. Achievement of satisfactory feed quality and effective assimilation of nutrients by larval fish is the major challenge in larval production process. Aim of this study was to evaluate whether treatment of live and inert feed with lactobacilli could alleviate growth retardation associated with early weaning of pike-perch reared in recirculating system. Weaning started on 18th day post-hatching (DPH) either as sudden weaning (SW) or by co-administration of Anemia for six days (gradual weaning, GW). Prior to administration to fish, Anemia was treated with Lactobacillus salivarius BGHO1/Lb. reuteri BGGO6-55, while inert feed was treated with Lb. paracasei subsp. paracasei BGHN14/Lb. rhamnosus BGT10. Treatment with lactobacilli slightly raised neutral lipid level in Anemia nauplii, but significantly reduced their content in dry feed. Fish were sampled on the 24th DPH. Survival, morphometric indices, skeleton differentiation, digestive enzyme activity and opportunistic pathogenic bacteria level were assessed in whole fish specimens. GW fish were presented with better survival, body growth and phospholipase A2 (PLA2) activity. Alongside, Vibrio spp. growth was suppressed in these fish and skeleton development was improved, according to Alizarin Red staining and ColIA1/Sparc mRNA expression data. Lactobacilli application in GW fish correlated with an increase of survival, condition factor and growth rate, according to trypsin and chymotrypsin activities, indicating better utilization of dietary proteins for muscle building. In SW fish, lactobacilli elevated chymotrypsin activity, PLA2 to lipase activity ratio and improved survival and ossification, as evident from Alizarin Red staining and ColIA1/Sparc mRNA expression. This indicated improved fatty acid absorption and control of metamorphosis process. Furthermore, lactobacilli suppressed Vibrio spp. growth in SW fish. Aside from demonstrating the ability of lactobacilli to aid weaning in pike-perch larvae, this study indicated that different types of food treatment may direct fish growth in a predictable manner, allowing further cost-effective improvements of larval pike-perch rearing in intensive system.",
publisher = "Elsevier, Amsterdam",
journal = "Aquaculture",
title = "The effect of live and inert feed treatment with lactobacilli on weaning success in intensively reared pike-perch larvae",
volume = "516",
doi = "10.1016/j.aquaculture.2019.734608"
}

Ljubobratović, U., Kosanović, D., Demeny, F. Z., Krajcsovics, A., Vukotić, G., Stanisavljević, N., Golić, N., Jeney, G.,& Lukić, J.. (2020). The effect of live and inert feed treatment with lactobacilli on weaning success in intensively reared pike-perch larvae. in Aquaculture
Elsevier, Amsterdam., 516.
https://doi.org/10.1016/j.aquaculture.2019.734608

Ljubobratović U, Kosanović D, Demeny FZ, Krajcsovics A, Vukotić G, Stanisavljević N, Golić N, Jeney G, Lukić J. The effect of live and inert feed treatment with lactobacilli on weaning success in intensively reared pike-perch larvae. in Aquaculture. 2020;516.
doi:10.1016/j.aquaculture.2019.734608 .

Ljubobratović, Uroš, Kosanović, Dejana, Demeny, Ferenc Zoltan, Krajcsovics, Adrienn, Vukotić, Goran, Stanisavljević, Nemanja, Golić, Nataša, Jeney, Galina, Lukić, Jovanka, "The effect of live and inert feed treatment with lactobacilli on weaning success in intensively reared pike-perch larvae" in Aquaculture, 516 (2020),
https://doi.org/10.1016/j.aquaculture.2019.734608 . .

TY  - JOUR
AU  - Lukić, Jovanka
AU  - Vukotić, Goran
AU  - Stanisavljević, Nemanja
AU  - Kosanović, Dejana
AU  - Molnar, Zsuzsanna
AU  - Begović, Jelena
AU  - Terzić-Vidojević, Amarela
AU  - Jeney, Galina
AU  - Ljubobratović, Uroš
PY  - 2019
UR  - http://intor.torlakinstitut.com/handle/123456789/529
AB  - The aim of this research was to improve nutritive value of fishmeal-based feed by lactobacilli in order to achieve satisfactory nutrient availability needed to support fish development. Feed was solid-state treated at a laboratory scale with the combination of Lactobacillus paracaseisubsp. paracasei BGHN14 and Lactobacillus rhamnosus BGT10 in different experimental settings, which included the variation of strain ratio, total lactobacilli concentration, percentage of moisture and duration of incubation. Short peptides, soluble proteins, phospho-, neutral and unsaturated lipids were quantified. Differences among treated and control feeds were evaluated by Student t-test, while Gaussian process regression (GPR) modeling was employed to simulate the incubation process and define the optimal treatment combination in the context of overall feed nutritional profile. Treatment duration was shown to be the critical determinant of final outcome, either as single factor or via interaction with strain ratio. Optimal nutrient balance was achieved with 12 h incubation period, 260% moisture, 75:25 and 50:50 BGHN14:BGT10 ratios and 200 mg of lactobacilli per g of dry feed. This study should serve as the basis for large-scale tests which would simulate on-farm production of both fishmeal-based and unconventional, lower cost aquafeed with added value.
PB  - Public Library Science, San Francisco
T2  - PLoS One
T1  - Solid state treatment with Lactobacillus paracasei subsp. paracasei BGHN14 and Lactobacillus rhamnosus BGT10 improves nutrient bioavailability in granular fish feed
IS  - 7
VL  - 14
DO  - 10.1371/journal.pone.0219558
ER  - 

@article{
author = "Lukić, Jovanka and Vukotić, Goran and Stanisavljević, Nemanja and Kosanović, Dejana and Molnar, Zsuzsanna and Begović, Jelena and Terzić-Vidojević, Amarela and Jeney, Galina and Ljubobratović, Uroš",
year = "2019",
abstract = "The aim of this research was to improve nutritive value of fishmeal-based feed by lactobacilli in order to achieve satisfactory nutrient availability needed to support fish development. Feed was solid-state treated at a laboratory scale with the combination of Lactobacillus paracaseisubsp. paracasei BGHN14 and Lactobacillus rhamnosus BGT10 in different experimental settings, which included the variation of strain ratio, total lactobacilli concentration, percentage of moisture and duration of incubation. Short peptides, soluble proteins, phospho-, neutral and unsaturated lipids were quantified. Differences among treated and control feeds were evaluated by Student t-test, while Gaussian process regression (GPR) modeling was employed to simulate the incubation process and define the optimal treatment combination in the context of overall feed nutritional profile. Treatment duration was shown to be the critical determinant of final outcome, either as single factor or via interaction with strain ratio. Optimal nutrient balance was achieved with 12 h incubation period, 260% moisture, 75:25 and 50:50 BGHN14:BGT10 ratios and 200 mg of lactobacilli per g of dry feed. This study should serve as the basis for large-scale tests which would simulate on-farm production of both fishmeal-based and unconventional, lower cost aquafeed with added value.",
publisher = "Public Library Science, San Francisco",
journal = "PLoS One",
title = "Solid state treatment with Lactobacillus paracasei subsp. paracasei BGHN14 and Lactobacillus rhamnosus BGT10 improves nutrient bioavailability in granular fish feed",
number = "7",
volume = "14",
doi = "10.1371/journal.pone.0219558"
}

Lukić, J., Vukotić, G., Stanisavljević, N., Kosanović, D., Molnar, Z., Begović, J., Terzić-Vidojević, A., Jeney, G.,& Ljubobratović, U.. (2019). Solid state treatment with Lactobacillus paracasei subsp. paracasei BGHN14 and Lactobacillus rhamnosus BGT10 improves nutrient bioavailability in granular fish feed. in PLoS One
Public Library Science, San Francisco., 14(7).
https://doi.org/10.1371/journal.pone.0219558

Lukić J, Vukotić G, Stanisavljević N, Kosanović D, Molnar Z, Begović J, Terzić-Vidojević A, Jeney G, Ljubobratović U. Solid state treatment with Lactobacillus paracasei subsp. paracasei BGHN14 and Lactobacillus rhamnosus BGT10 improves nutrient bioavailability in granular fish feed. in PLoS One. 2019;14(7).
doi:10.1371/journal.pone.0219558 .

Lukić, Jovanka, Vukotić, Goran, Stanisavljević, Nemanja, Kosanović, Dejana, Molnar, Zsuzsanna, Begović, Jelena, Terzić-Vidojević, Amarela, Jeney, Galina, Ljubobratović, Uroš, "Solid state treatment with Lactobacillus paracasei subsp. paracasei BGHN14 and Lactobacillus rhamnosus BGT10 improves nutrient bioavailability in granular fish feed" in PLoS One, 14, no. 7 (2019),
https://doi.org/10.1371/journal.pone.0219558 . .