Abstract The aim of this study was to verify the hypothesis that carcass traits, quality and oxidative stability meat, fatty acids profile in intramuscular fat (IMF) M. longissimus lumborum et thoracis ( MLLT ) backfat (BF) are different between observed genotypes pigs. A total 64 animals were included experiment, 32 pigs native breed Prestice Black-Pied (PBP) hybrid combination Large White × Landrace sows Duroc Pietrain boars (LWLDP). PBP showed higher values IMF (P≤0.01) BF, lower lean...

The objective of the study was to analyse fatty acid profile (FA) and amino (AA) in musculus longissimus lumborum et thoracis (MLLT) two contrast pig populations. carried out on a total 39 pigs (19 barrows 20 gilts) indigenous Prestice Black-Pied Pig (PB) 37 (17 three-breed commercial hybrid Large White × Landrace Whitesireline (CH). were kept same conditions diet management. slaughter at average weight 95 kg. Sex evaluated also taken into account. CH showed lower contents saturated FA (p <...

Utilisation of artificial insemination has led to the increased role male animals. They significantly contribute efficiency productivity; therefore, sperm quality been emphasised. The aim this study was analyse changes in boar morphology during year forty-two Duroc, Landrace and Large White boars Czech Republic. For each boar, a spermiogram evaluated every month 2018. number morphologically abnormal spermatozoa recorded evaluate morphology. abnormalities were categorised as head, acrosome,...

The objective of this study was to analyse sow reproductive performance and piglet loss from birth weaning before after repopulation a selected farm. observation carried out on productive farm; 160 sows were included in the experiment. Before repopulation, 80 1 st 5 th litter evaluated. original population removed. Repopulated (newly stocked) group consisted gilts at litter. Newly delivered with status minimum disease placed into decontaminated stable strict batch, black white breeding...

The aim of the experiment was to analyze reproductive performance sows and losses growth piglets in three different systems farrowing houses. A total 120 Prestice Black-Pied breed were included study with 40 litters evaluated each systems. housing compared conventional cages, pens temporary fixation, free pens. system significantly affected length pregnancy (p &lt; 0.05). Its effect 0.35 days shorter free-farrowing than cage technology 0.6 fixation. Housing also influenced onset post-weaning...

The aim of the study was to evaluate productive and reproductive performance Prestice Black-Pied sows including losses piglets from birth weaning in conditions two farms. experiment involved one hundred pig 1st 7th parity (50 farm A 50 B). evaluation parameters revealed a highly statistically significant difference (P ≤ 0.001) between gilts observed farms percentage lean meat. Backfat thickness 0.19 cm lower A, which is very 0.001). showed, that age at time first insemination farrowing...

This study analysed the effect of sow parity (P), terminal boars (TB), and their combination on reproductive parameters sows, losses piglets, individual live-weight (LW) average daily gain (ADG) from birth to weaning. A total 120 sows Large White × Landrace hybrid first fourth (30 per parity) were included in observation. The inseminated by Pietrain (Pn), Whitesireline (LWSL), Duroc (D) breeds Whitesirelinie (D LWSL), (LWSL Pn), Pn) combinations (20 boar population). results proved a...

The aim of this study was to evaluate selected parametres reproduction in sows the fi rst litter and piglets loss from birth weaning a er repopulation production sow herd.Observed were evaluated two commercial programs.An experimental group consisted 80 gilts (40 program A 40 programm B).Gained values total number per 16.23 ± 2.26 15.63 2.13 B. Evaluation live-born showed numbers 14.74 2.09 14.50 2.10 Numbers stillborn 1.48 1.30 for against 1.13 1.42 B reared 13.20 1.52 13.68 2.00...

The aim of the experiment was to analyze selected reproductive characteristics in sows and losses piglets according their age evaluate effect sex on survivability before weaning. experimental observation involved 80 with second litters (40 genotye I 40 genotype II). were mated a boar Danish Duroc. No significant difference found between evaluated genotypes numbers live-born reared piglets, however it is evident that better results reached by II. Also per litter lower, 0.65 piece (P ≤ 0.05)....

The objective of this study was to investigate the effect birth weight on growth performance and carcass quality. Data were collected from 80 crossbred piglets. Individual body measured at birth, age 21, 28 38 days, 4 weeks before slaughter, 2 slaughter one day slaughter. Average daily gains in separate intervals calculated. Fattening period finished same for all pigs. Lean meat percentage pH1 value after drip loss intramuscular fat content analysed laboratory. divided into groups according...

The aim of the study was to evaluate selected reproductive parameters in sows. Observed were analysed two herds with different health status. experiment involved 160 hybrid sows from 1st 5th litter (80 status A and 80 B). Highly statistically significant differences (P ≤ 0.001) 0.05) found between groups length gravidity, total numbers piglets, live-born stillborn reared piglets losses per favor group B declared Evaluation phenotypic correlation number without revealed high positive 0.01)....

Contents The aim of this work was to evaluate the effect supplementing feed ration for lactating sows with conjugated linoleic acid ( CLA ) on growth performance and losses piglets from birth weaning. monitoring comprised 20 litters in control experimental group Czech Large White × Landrace hybrid combination sows. given a standard mixture sows, fed supplemented 2% , day farrowing weaning piglets, that is time 28 days. results experiment indicate significantly better parameters numbers...

The evaluation of the eff ect supplements conjugated linoleic acid (CLA) given to pregnant and lactating sows on phenotypic manifestation their reproductive performance birth weaning weight piglets was performed under conditions a commercial herd pigs.The experiment involved altogether 40 hybrid divided into two equal groups, i.e.Controls with 20 Experimental Group also sows.Experimental received within time interval from 108 th day pregnancy 28 er parturition supplement 2 % CLA.In...

The aim of this study was to analyse the losses piglets caused by different factors (due overlaying, biting and/or other reasons) within period from birth weaning, reared with their mothers in types housing technology. experiment involved 90 hybrid sows (Czech Large White x Czech Landrace) housed two farrowing houses Each experimental variant 45 litters and demonstrate effect technology on piglets. One (Technology I) modern originated year 2002 while II) older (1994). Piglets were weaned age...

The aim of this study was to assess an effect breed on frequency morphological changes in boar spermatozoa.A total 1080 semen samples were used study.The collected from January December 2017 90 boars the Duroc, Czech Large White and Landrace breeds.Sperm cell abnormalities evaluated microscopically dyed smears native glass slides.Defects spermatozoa divided according their impact fertility into categories "major defects" (with a great negative fertility) "minor mild fertility).The overall...

The objective of this study was to evaluate selected reproductive parametres sows stabled in farrowing houses with diff erent technologies and losses piglets from birth weaning.Each variant involved 40 litters the aim demonstrate eff ect housing on piglets.One (housing A) modern while other B) older.The total number reached A 13.18 ± 1.85 against 13.03 1.91 B. values live-born 11.50 1.36 11.36 1.46 stillborn found 1.68 1.49 B 1.65 1.17.The erences between groups are not statistically signifi...

The objective of the performed experiment was to evaluate growth performance and selected carcass traits meat quality parameters in pigs a native Czech breed Prestice Black-Pied pig (PB) commercial hybrid (H) used for production.The observation included 40 pigs, 20 PB combination.The piglets showed higher (P ≤ 0.05) birth weight than H piglets.The lifetime gain 0.01) pigs.The results also backfat thickness pigs. Lean content breed.Higher values intramuscular fat were found Drip loss value by...

The aim of this study was to evaluate whether the supplementation compound feed during rearing and before serving gilts with conjugated linoleic acid (CLA) influences organometric parameters their reproductive system performance. experimental work carried out in operating conditions a production pig farm. Total number 80 (40 control group 40 group) hybrid combination Czech Large White x Landrace (CLW CL) were included observation. During experiment fed an suplemented 2% CLA for time 65 days....

The aim of this study was evaluation reproductive performance in sows from herds with minimal disease. Total number 40 were included the observation and evaluated 1st to 4th parity. highest recorded at 3rd Statistically significant difference (P < 0.05) found between parity highly statistically 0.01) 2nd live-born piglets. Comparison numbers stillborn piglets showed mean values results also reared conclusions indicate that creation maintenance high health status lead excellent area pig reproduction.

The aim of this study was to analyze production and quality semen in boars an insemination centre. Experimental material consisted 8,052 samples collected from 146 boars. During the period 5 years, analysis parameters conducted. obtained data were divided according age at time collection. Results showed that between 8 months 3 years reached higher levels volume, percentage abnormal spermatozoa number spermatozoa. Older had lower sperm concentration levels. largest total corrected observed 13...