Veterinární medicína, 2019 (vol. 64), issue 7
Sustained drug delivery system in fish and the potential for use of PLGA microparticles: a reviewReview
Jindriska Matejkova, Peter Podhorec
Vet Med - Czech, 2019, 64(7):287-293 | DOI: 10.17221/161/2018-VETMED 
Many fish species display some form of reproductive disorder in captivity. Captive fish reared in conditions outside the natural spawning environment show a failure of the pituitary to release the maturational gonadotropin luteinizing hormone thus necessitating administration of the hormone to induce spawning. A controlled sustained-release delivery system can conquer the issue of short half-life of gonadotropin releasing hormone (GnRH) in blood and avoid the necessity of using re-injections. Sustained release of GnRHa can induce long-term enhancement in semen production and multiple spawning in species with asynchronous or multiple batch group synchronous...
Ruminal fermentation and digestion of cattle diets with total and partial replacement of soybean meal by a slow-release urea productOriginal Paper
Sergio Gonzalez-Munoz, Jose Sanchez, Samuel Lopez-Aguirre, Jorge Vicente, Juan Pinos-Rodriguez
Vet Med - Czech, 2019, 64(7):294-301 | DOI: 10.17221/159/2018-VETMED
One in vitro assay and one in vivo trial with ruminally cannulated Holstein steers were conducted to evaluate the effects of a dietary substitution of soybean meal by a urea and slow-release urea source of fermentation and degradation of diets for cattle. The experimental diets consisted of the total mixed rations defined as the control with soybean meal (SBM), U (urea), SRU (slow-release urea), and SRU+U+AA (0.42% + 0.42% + 1% amino acids methionine and lysine). The dietary substitution of SBM by U or SRU reduced (P < 0.05) the total gas production (V), microbial mass and degradation at 72 h incubation under...
Association of Anti-Müllerian Hormone concentrations between the pregnancy rates and pregnancy continuity of cows in different age groupsOriginal Paper
Ahmet Sabuncu, Gamze Evkuran Dal, Sinem Ozlem Enginler, Omur Kocak, Ramazan Arici
Vet Med - Czech, 2019, 64(7):302-308 | DOI: 10.17221/168/2018-VETMED
The potential relationships between Anti-Müllerian Hormone (AMH) concentrations and fertility were investigated by examining pregnancy rates and early pregnancy loss in different age groups of cows. Holstein heifers (17.35 ± 1.35 months, n = 20), young cows (3.25 ± 1.02 years, n = 20), and old cows (6.7 ± 0.80 years, n = 20) were synchronised and time fixed inseminated. A single blood sample per animal was taken during oestrus just before artificial insemination (AI), (Day 0) for the AMH analysis. The highest plasma AMH concentrations were determined in the heifer group (149.01 ± 12.62 pg/ml, P...
Platelet-rich plasma, bone marrow and chitosan in minimally invasive plate osteosynthesis of canine tibia fractures - a randomized studyOriginal Paper
Fabricia Geovania Fernandes Filgueira, Bruno Watanabe Minto, Denise Granato Chung, Tiago Carmagni Prada, Natalie Massaro Rosa-Ballaben, Maria Gabriela Nogueira Campos
Vet Med - Czech, 2019, 64(7):309-316 | DOI: 10.17221/19/2019-VETMED
The goal of this study was to analyse the effects of percutaneous application of platelet rich plasma (PRP), autologous bone marrow concentrate (BM) and chitosan gel (CHI) on bone consolidation following minimally invasive plate osteosynthesis (MIPO) of the fractures of the tibia in dogs. Client-owned dogs (n = 30) with tibial fracture were divided into four treatment groups - Group 1 (control), Group 2 (BM), Group 3 (PRP) and Group 4 (CHI). The biomaterial specific to each group was injected at the fracture site immediately after the MIPO procedure. Serial radiographs were used to determine the fracture line and the development of periosteal...
The effect of a bone marrow-derived immunostimulatory preparation on the immunity of broiler chickens vaccinated against salmonellosisOriginal Paper
Nikolai Mikhailovich Mandro, Yuri Alexandrovich Kopeikin, Zoya Alexandrovna Litvinova
Vet Med - Czech, 2019, 64(7):317-322 | DOI: 10.17221/156/2018-VETMED
The use of bone marrow-derived immunostimulants is a promising direction in poultry production. The objective of this research was to study the effect of introducing a bone marrow cell protein formulation on the immunity of chickens vaccinated against salmonellosis. According to the principle of analogues, a control and two experimental groups of chickens were formed with 20 heads each (in total 60 individuals). To Group 1 birds, a protein preparation from bovine bone marrow cells was administered with feed by irrigation with 10% suspension in physiological saline at a rate of 0.2 ml per head once per day from the first day of life for three days....
Breeder line and age affects the occurrence of developmental defects, the number of culled one-day old broiler chicks and their body massOriginal Paper
Blazej Nowak, Edward Pawlina, Katarzyna Ilska, Anna Mucha, Wojciech Kruszynski
Vet Med - Czech, 2019, 64(7):323-333 | DOI: 10.17221/137/2018-VETMED
The objective of this work was to study the reasons for culling one-day old broiler chicks and to examine the relationship between the age and line of the hens and the culled chick's body mass. Hatching eggs and day-old chicks were collected from a commercial flock of the Cobb 500 and Ross 308 broiler lines. The eggs were collected when the hens were 32, 42 and 52 weeks old. The reasons for culling the chicks were assessed immediately after the chicks had been removed from the hatcheries. The four main groups of defects were distinguished, depending on the part of the chick's body. A fifth group covered general developmental defects. Within each group,...