Czech Journal of Animal Science, 2011 (vol. 56), issue 10

The effects of wilting and biological and chemical additives on the fermentation process in field pea silage

Y. Tyrolová, A. Výborná

Czech J. Anim. Sci., 2011, 56(10):427-432 | DOI: 10.17221/3235-CJAS  

The objectives of the study were to evaluate the effects of wilting and additives on the fermentation quality of field pea silage, and to determine the rumen degradability of organic matter of pea silage. The following additives were used: commercial bacterial inoculant (1 g/t) containing homofermentative lactic acid bacteria - Lactobacillus rhamnosus (NCIMB 30121) and Enterococcus faecium (NCIMB 30122) and chemical additive containing formic acid, propionic acid, ammonium formate and benzoic acid (4 l/t). Compared to the control and chemical additive, the addition of the inoculant to wilted silage increased the lactic acid content...

Growth and survival rates, puberty and fecundity in captive common barbel (Barbus barbus L.) under controlled conditions

T. Policar, P. Podhorec, V. Stejskal, P. Kozák, V. Švinger, S.M. Hadi Alavi

Czech J. Anim. Sci., 2011, 56(10):433-442 | DOI: 10.17221/3236-CJAS  

Growth and survival rates (specific growth rate - SGR; survival rate - S) of Barbus barbus L. were recorded in captivity during three years from the larval period (final body weight - W = 0.2 ± 0.03 g; SGR = 13.6 ± 1.1%/day and cumulative survival - S = 76.0 ± 2.5%) to the first reproductive season (W = 62.55 ± 13.5 g; SGR = 0.89 ± 0.05%/day; S = 59.3 ± 1.5%). Final body size and SGR were compared between both sexes. Females reached the significantly higher growth rate (SGR = 0.84 ± 0.01%/day) compared to males (SGR = 0.77 ± 0.01%/day). Early puberty was observed in 17 and 32 months old...

Effects of supplemental phytase on nutrient digestibility and performance of sows fed diets with high or low native phytase activity

E.R. Grela, J. Matras, A. Czech

Czech J. Anim. Sci., 2011, 56(10):443-450 | DOI: 10.17221/3237-CJAS  

Two experiments were conducted to examine the influence of addition of microbial phytase to diets differing in native phytase content, on the performance of sows and digestibility of nutrients. Barley and wheat grains relatively poor in native phytase used in Experiment 1 mixtures were replaced by triticale and rye (rich in this enzyme) in Experiment 2 diets. There were 3 groups in each experiment. Group I (control) received basal diets enriched with dicalcium phosphate (10 g/kg), group II (negative control) was fed basal diets without any additive, and group III (negative control) was supplemented with microbial phytase (500 PU/kg). Body weights of...

Use of the mobile nylon bag technique for determination of apparent ileal digestibilities of crude protein and amino acids in feedstuffs for pigs

T. Steiner, U. Bornholdt, W.C. Sauer, F. Ahrens, H. Jørgensen, R. Mosenthin

Czech J. Anim. Sci., 2011, 56(10):451-464 | DOI: 10.17221/3238-CJAS  

Three digestibility experiments were conducted to evaluate the potential of determination of apparent ileal digestibilities (AID) of crude protein (CP) and amino acids (AA) by the mobile nylon bag technique (MNBT) using 21 feedstuffs and three mixed diets. In two conventional digestibility experiments (Exp. 1 and 2), AID were determined using in total 10 barrows (BW 35 kg) fitted with simple T-cannulas at the terminal ileum. For the MNBT studies, four pigs were fitted with a simple T-cannula at the proximal duodenum and a Post-Valve T-Caecum (PVTC) cannula at the terminal ileum. The MNBT studies included the feedstuffs (n = 10) from Exp. 1...

Intestinal histology of Santa Ines lambs fed bovine or ovine colostrum

R. Machado-Neto, I.H. Grigolo, D.B. Moretti, L. Kindlein, P. Pauletti

Czech J. Anim. Sci., 2011, 56(10):465-474 | DOI: 10.17221/3239-CJAS  

The aim of this study was to investigate histology characteristics in the small intestine of Santa Ines lambs fed bovine or ovine colostrum. At 0 and 6 h of life, 12 newborn lambs received 250 ml of first milking bovine colostrum (BC) and another 12 animals received 250 ml of first milking ovine colostrum (OC). Samples of duodenum, jejunum and ileum were collected at 24 and 72 h of life. Six animals were sampled at birth, without colostrum intake (0 h). The histomorphologic analysis revealed differences between BC and OC groups in the jejunum and ileum segments. BC group had higher amounts of colostrum-filled vacuoles in the intestinal epithelium compared...