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Andrzej Łozicki

Warsaw University of Life Sciences

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M. Dymnicka

Warsaw University of Life Sciences

E. Arkuszewska

Warsaw University of Life Sciences

Tomasz Niemiec

Warsaw University of Life Sciences

Klara Zglińska

Warsaw University of Life Sciences

Anna Rygało-Galewska

Warsaw University of Life Sciences

Gabriela Halik

Warsaw University of Life Sciences

Jan Miciński

University of Warmia and Mazury in Olsztyn

J. Klupczyński

University of Warmia and Mazury in Olsztyn

I. Kosieradzka

Warsaw University of Life Sciences

Agata Koziorzębska

Warsaw University of Life Sciences

Cooperative Institutions

Warsaw University of Life Sciences

Polish Academy of Sciences

University of Copenhagen

University of Warmia and Mazury in Olsztyn

Uniwersytecki Szpital Kliniczny w Olsztynie

University of Warsaw

Institute of Plant Genetics, Polish Academy of Sciences

University of Computer Sciences and Economics in Olsztyn

National Research Institute of Animal Production

University of Wrocław

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Porównanie wyników odchowu cieląt oraz próba oszacowania kosztów żywienia krów mamek rasy hereford w wybranych gospodarstwach

Zeszyty Naukowe. Przegląd Hodowlany (2001)

Andrzej Łozicki M. Dymnicka

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Efektywnosc zywienia pastwiskowego krow matek rasy hereford

Roczniki Naukowe Zootechniki. Suplement (2002)

Andrzej Łozicki M. Dymnicka

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Analiza efektywności żywienia krów matek i porównanie wyników odchowu cieląt rasy hereford

Zeszyty Naukowe. Przegląd Hodowlany (2002)

Andrzej Łozicki M. Dymnicka

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The effect of silica-calcite sedimentary rock contained in the chicken broiler diet on the overall quality of chicken muscles

Open Chemistry (2020)

Mateusz Makarski Tomasz Niemiec Andrzej Łozicki Dorota Pietrzak Lech Adamczak

Abstract Opoka is a silica-calcite sedimentary rock chemically and structurally similar to diatomaceous earth (DE), composed mainly of silicon dioxide (SiO2), calcium carbonate (CaCO3), amorphous SiO. Opoka occurs predominantly in South Eastern Europe and Russia. Due to these specific properties investigation on the effect of opoka-enriched diet on chemical composition and overall quality of breast and leg muscles of broilers was initiated. Working samples showed a statistically significant increase in ash content or water content and a decrease in lipid content in the leg muscles of both male and female broilers (P<0.01). Furthermore, the addition of opoka to the diet increased WHC of leg muscles in females and hardness or chewiness of these muscles in both genders (P<0.05). The supplementation of broiler diet with opoka can be effectively applied to modify texture features of leg and breast muscle tissue which might, in turn, serve to regulate the nutritional and technological value of chicken meat.

Chewiness

Amorphous calcium carbonate

10.1515/chem-2020-0022

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Wplyw bilansu kationowo-anionowego na wzrost i rozwoj buhajkow w okresie ich oceny osobniczej

Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego (2008)

Andrzej Łozicki M. Dymnicka B. Niwinska J. Micinski J. Klupczynski

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Effect of Using Ensilaged Corn Wet Distillers’ Grains Plus Solubles (WDGS) as a Partial Replacement for Concentrated Feed for Wet Lot Fed Fatteners during Fattening on Growth Performance, Carcass Characteristics and Pork Quality

Agriculture (2023)

Mateusz Roguski Andrzej Łozicki Marcin Sońta Wiktor Bendowski Tomasz Niemiec

The purpose of this study was to determine the nutritional suitability of WDGS in pigs’ feeding and production. Pigs were liquid fed and divided into 3 groups. Pigs in the control group were fed diets based on cereal grains, while the experimental groups were also given 10% or 15% WDGS, which partially replaced their cereal grains. During this study, the average daily gains (ADG), feed intake, chemical composition of meat, fatty acid profile of meat, and quality parameters of the carcass and meat were examined. The highest statistical weight gains were detected for the group WDGS 10% during the first stage of the fattening period. No statistical differences were detected for the final body weight, carcass traits, chemical composition of the meat or the composition of fatty acids such as SFAs, PUFAs, and MUFAs, with the exception of eicosenoic acid (C20:1n9). Pigs fed on 10% WDGS exhibited lower peroxidation of lipids (TBARS) than the control group or WDGS 15%. Similarly, water holding capacity (WHC) was the lowest for the group WDGS 10%. Of the meat coloration, redness (a*), yellowness (b*), and chroma (C*) were affected by the WDGS’ inclusion, where the highest values were observed for the group WDGS 10%. In conclusion, WDGS can be utilized in the liquid feeding of pigs for up to 15% of their DM.

TBARS

Distillers grains

Carcass weight

10.3390/agriculture13102017

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Effect of copper nanoparticles on the mineral content of tissues and droppings, and growth of chickens

Archives of Animal Nutrition (2018)

Ewa Sawosz M. Łukasiewicz Andrzej Łozicki Malwina Sosnowska Sławomir Jaworski

We hypothesised that copper nanoparticles (NanoCu), because of their high physicochemical reactivity and bioavailability, could be used in much smaller quantities than bulk Cu, consequently reducing excretion of Cu into the environment. The objective of the study was to evaluate the effects of various levels of NanoCu on the development and growth of broiler chickens, in order to establish an optimum level of NanoCu dietary supplementation. Broiler chickens were randomly divided into five groups of 10 birds each. The control group received 7.5 mg Cu/kg feed (standard level) as CuSO4, while groups fed with complexes of NanoCu and starch received 25%, 50%, 75% and 100% of the standard level of Cu used in the control group. Chicken growth and excretion of Cu, Fe and Zn were measured during the growth period from d 7 to 42. At d 42, the slaughter characteristics, the content of Cu, Fe and Zn in the breast muscle and liver, and the oxidative status were analysed. The results indicate that using NanoCu can reduce the standard level of Cu from CuSO4 supplementation by 75% without jeopardising animal growth, and at the same time significantly decreasing Cu excretion into the environment.

10.1080/1745039x.2018.1505146

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Od komórki do produkcji zwierzęcej - badania i perspektywy zastosowania nanocząstek srebra

Przegląd Hodowlany (2013)

Tomasz Niemiec M Szmidt Ewa Sawosz Marta Grodzik Andrzej Łozicki

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Nutrient and fatty acid composition of elephant and king grasses from different altitudes

IOP Conference Series Earth and Environmental Science (2023)

D Anzhany T Toharmat Despal Despal Andrzej Łozicki N Rofiah

Abstract Types of forage and the altitude it grows affect the quality of milk’s fatty acids (FA) profile. Thus, this study aimed to analyze the chemical and FA quality of elephant grass (EG) and king grass (KG) growth from different altitudes. The grass samples were collected from Pangalengan District, the highland, and Dramaga District, the lowland. Grass lipid extraction and FA methylation were done according to the AOAC method. FA was quantified using gas chromatography (GC-7820A), CP-Sil 88 fused-silica capillary column, and authentic standard (Supelco 37 Component FAME-Mix). The nutrient content was analyzed using FT-NIR Spectrometer Solids Cell, except for EE used the AOAC method. This study showed EE content was significantly different between species, with the higher content found in EG. The C17:0 was significantly different between altitudes. The SFA, UFA, and PUFA were significantly different between species. The EG had higher UFA and PUFA and lower SFA. It showed that the higher EE content was related to the higher FAs yield, followed by higher UFA and PUFA in EG than in KG. It was concluded that the grass species had a more significant effect on chemical and FAs profiles than the altitude.

10.1088/1755-1315/1183/1/012002

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Effect of zinc nanoparticles on embryo and chicken growth, and the content of zinc in tissues and faeces

South African Journal of Animal Science (2020)

M. Łukasiewicz Andrzej Łozicki N.H. Casey A. Chwalibog J. Niemiec

The hypothesis was that owing to their high bioavailability, zinc oxide nanoparticles (NanoZnO) can effectively replace (Zn) salts and reduce Zn excretion with faeces. The objective of this study was to investigate the effects of NanoZnO on the development of chicken embryos, the growth of broiler chickens, and Zn excretion with faeces. At day 1 of incubation, 120 eggs were randomly divided between a control group (not injected) and groups injected with a hydrocolloid of NanoZnO in increasing concentrations (50, 100, 500 mg/L). At day 19 of incubation, no differences were observed in the bodyweight, but 100 and 500 mg/L affected liver and heart weights, indicating that high levels of NanoZnO may induce differential organ development. In the subsequent experiment, 308 chickens were randomly divided into six groups. The control diet was supplemented with 55 mg Zn/kg (standard level), the 0 group received no Zn supplement, and groups fed NanoZnO received 25%, 50%, 75%, and 100% of the standard level. The 100% replacement of ZnO with NanoZnO increased the chickens’ bodyweight compared with the standard level of ZnO, but to the same level as the diet without ZnO supplementation. Furthermore, NanoZnO did not reduce the content of Zn in faeces, which was only significantly lower in the group without ZnO supplementation in comparison with other groups. The results indicate that the replacement of ZnO with NanoZnO had no negative effects on chicken growth. Compared with ZnO, NanoZnO did not reduce Zn excretion with faeces. Keywords: broiler, development, excretion, mineral, nanonutrition

10.4314/sajas.v50i1.12

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