Review

Applying the modern methods of reproductive biotechnology to the ex situ conservation of national breeds of selected livestock species
Monika Trzcińska Marcin Samiec
Cognitive processes, behaviour and intelligence of pigs
Anna Rekiel Marcelina Wieczorek Justyna Więcek
The importance of native goat breeds for preserving biodiversity, developing high-quality food market and increasing the profitability of production – an example of the restoration and breeding of the Carpathian goat in Poland
Aldona Kawęcka
Greater celandine (Chelidonium majus) in livestock nutrition
Adrian Krzykawski Małgorzata Gugołek Dorota Kowalska Andrzej Gugołek
Regenerative grazing as an element that shapes grassland ecosystem services
Iwona Radkowska Adam Radkowski

Animal genetics and breeding

Assessment of performance variability and basic components of milk from Polish Holstein-Friesian cows
Ewa Salamończyk Piotr Guliński
Current issues and prospects for the conservation of sheep genetic resources in Poland
Aldona Kawęcka Marta Pasternak Michał Puchała Jacek Sikora Iga Peist

Animal nutrition and feedstuffs

Effect of probiotic preparation on weight gain, immune system status and health of calves
Iwona Radkowska Agata Szewczyk
The effect of the addition of various fats to the diet of weaned piglets on selected metabolic indicators and the structure of their digestive tract
Paulina Szczurek Marek Pieszka Jarosław Woliński Sylwia Orczewska-Dudek Marian Kamyczek Magdalena Pieszka

The biology, physiology, reproduction, and health

Development of the effective strategy used for establishment of mitotically stable lines of embryonic stem cells derived from blastoderm isolated from in vivo- fertilized eggs of domestic fowl (Gallus gallus domesticus)
Marcin Samiec Monika Trzcińska Katarzyna Połtowicz Małgorzata Duda
Comparative analysis of the hair coat of selected breeds from the group of Northern European short-tailed sheep
Aurelia Radzik-Rant Witold Rant Karolina Szulich
In ovo stimulation with Lactobacillus synbiotic induces changes in hepatic proteins involved in the de novo biosynthesis of purines, energetic metabolism and stress prevention in broiler chickens
Aleksandra Dunisławska Agnieszka Herosimczyk Adam Lepczyński Elżbieta Pietrzak Andrzej Krzysztof Ciechanowicz Małgorzata Ożgo Magdalena Kucia Marek Bednarczyk

Behaviour, well-being, production technology, and environment

Assessment of the emotional state of recreational horses – a pilot experiment
Katarzyna Olczak Natalia Łazarczyk Jacek Nowicki
Investigation of the subclinical parasitic infection of alpacas in Polish herds
Paweł Nosal Jerzy Kowal Anna Wyrobisz-Papiewska Maciej Murawski

Quality and safety of animal origin products

Effect of sex on the chemical composition and fatty acid profile of the Longissimus dorsi muscle in DanBred hybrid pigs
Karolina Dobiesz Wojciech Kozera Adam Okorski Grzegorz Żak Jarosław Krzysztoń Krzysztof Karpiesiuk