Vlaknina u hranidbi kunića: najnovije preporuke

In rabbit nutrition fibre is especially important because imbalance in fibre supply often results in higher mortality. In this review particular attention is devoted to the dietary fibre definition and to the impact of separate fibre fractions on the digestion and on health status of rabbits. The fibre requirements and recent fibre recommendations for growing rabbits in post-weaning and in fattening period are reviewed.Vlaknina je osobito važna u hranidbi kunića jer neuravnotežena opskrba vlakninom često ima za posljedicu veću smrtnost. U ovom pregledu osobita se pozornost posvećuje definiranju hranid¬bene vlaknine u obroku i djelovanju pojedinih frakcija vlaknine na probavu i zdravstveno stanje kunića. Dat je pregled potreba za vlakninom i najnovijih preporuka u vezi s vlakninom za kuniće u porastu u razdoblju nakon odbića i u tovu

Djelovanje starosti kunića na in vitro fermentaciju škroba, smjese krmiva i njegove vlaknine

In vitro gas production movement for three different substrates, starch, standard compound feed (20 % crude protein, 33 % NDF/kg DM) and neutral detergent fibre prepared from the standard compound feed (NDF), were determined using the caecum content of weaned rabbits (36 days of age) and of rabbits of slaughter age (78 days) as inoculum. Gas produced was fitted with the Gompertz model and the differences between parameters were calculated. The differences in fermentation kinetic parameters between older and weaned rabbits were significant within each substrate. In rabbits at slaughter weight the fermentation was more intensive, more rapid and, with the exception of compound feed, the production of gas was higher than in weaned rabbit. In first 10 hours of fermentation that correspond to the normal retention time in the caecum (Gidenne et al., 2000), the highest amount of gas was produced from compound feed. Only in this substrate the time of maximum fermentation rate was short enough (TMFR: 36 days 9.5, 78 days 6.6 hours, P<0.05) that it could be fermented in vivo. In accordance with published results it could be suggested that the majority of gas derived from pectins, which are important ingredients of compound feeds.Određena je in vitro kinetika proizvodnje plina za tri različita supstrata, škroba, standardne smjese krmiva (20% sirovih bjelančevina, 33% NDF/kg DM) i neutralnog deterdžentne vlaknine pri¬premljene iz standardne smjese krmiva (NDF) upotrebom sadržaja caecuma odbijenih kunića starih 36 dana i kunića u dobi za klanje (78 dana) kao inoculum. Proizveden plin spojen je s Gompertz kalupom/modelom pa su izračunate razlike između parametara. Razlike u kinetičkim parametrima fermentacije između starijih i odbijenih kunića bile su značajne unutar svakog supstrata. U kunića klaoničke težine fermenta¬cija je bila intenzivnija, brža i uz iznimku smjese krmiva, proiz¬vodnja plina bila je veća nego u odbijenih kunića. U prvih 10 sati fermentacije, što odgovara normalnom vremenu retencije u caecumu (Gidenne et al, 2000) najveća količina plina proizvedena je od smjese krmiva. Samo u ovom supstratu vrijeme maksimalne stope fermentacije bilo je dovoljno kratko (TMFR: 36 dana 9.5, 78 dana 6.6 sati, P<0.05/ da se moglo fermentirati in vivo. U skladu s objavljenim rezultatima može se pretpostaviti da većina plina potječe od pektina, važnih sastojaka smjese krmiva

Growth and Mortality of Suckling Rabbit

Rabbits are usually smaller and mortality is higher in large litters. The aim of the study was to estimate effects on mortality and growth in rabbits. The study was carried out in Slovenian SIKA sire line. In total, 430 kits of 60 does were included. In the analyses the effects of parity, number of liveborn kits and number of teats were analysed. Initial weight was included in the model for mortality, while age was included in the model for growth. Parity, litter size and teat number affected all traits, except on mortality. Body weight varied according to age. A total of 430 kits were observed, corresponding to an average litter size of 7.8 kits born, 7.3 kits born alive and 6.2 kits weaned. The birth to weaning mortality was 15.35% and mortality has steadily declined with age. Average weight up to age of three days was 75 g and at weaning 1035 g. Kits in smaller litters had a higher growth rate

Growth and Mortality of Suckling Rabbit

Rabbits are usually smaller and mortality is higher in large litters. The aim of the study was to estimate effects on mortality and growth in rabbits. The study was carried out in Slovenian SIKA sire line. In total, 430 kits of 60 does were included. In the analyses the effects of parity, number of liveborn kits and number of teats were analysed. Initial weight was included in the model for mortality, while age was included in the model for growth. Parity, litter size and teat number affected all traits, except on mortality. Body weight varied according to age. A total of 430 kits were observed, corresponding to an average litter size of 7.8 kits born, 7.3 kits born alive and 6.2 kits weaned. The birth to weaning mortality was 15.35% and mortality has steadily declined with age. Average weight up to age of three days was 75 g and at weaning 1035 g. Kits in smaller litters had a higher growth rate

How Can We Advance Integrative Biology Research in Animal Science in 21st Century?:Experience at University of Ljubljana from 2002 to 2022

In this perspective analysis, we strive to answer the following question: how can we advance integrative biology research in the 21st century with lessons from animal science? At the University of Ljubljana, Biotechnical Faculty, Department of Animal Science, we share here our three lessons learned in the two decades from 2002 to 2022 that we believe could inform integrative biology, systems science, and animal science scholarship in other countries and geographies. Cultivating multiomics knowledge through a conceptual lens of integrative biology is crucial for life sciences research that can stand the test of diverse biological, clinical, and ecological contexts. Moreover, in an era of the current COVID-19 pandemic, animal nutrition and animal science, and the study of their interactions with human health (and vice versa) through integrative biology approaches hold enormous prospects and significance for systems medicine and ecosystem health