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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Vliv délky laktace na reprodukční užitkovost prasnic
 MUKOSHA, Chisenga Emmanuel
The aim of the master´s thesis was to analyse the effects of the length of lactation between weaning after 21 days (2013-2015) and 28 days (2016-2019) on a commercial farm. The number of total born piglets was higher to the sows that weaned at day 28 (15.0 piglets) by 0.5 piglet compared to day 21. The number of alive born piglets was higher when weaned at day 28 (13.5 piglets) by 1.0 piglet compared at day 21. The average was greater weaning at day 28 (11.5 piglets) showing an increase of 0.7 piglet. The number of alive born piglets was recorded at its highest in the year 2019 with an average of 14.0 piglets which is an increase of 1.6 piglets (P < 0.05) compared to the year 2013 which recorded the lowest average of 12.4 piglets. The highest average was recorded during parity 4 (13.5 piglets) and the lowest during parity 7 (12.2 piglets). The difference was 1.3 piglets (P < 0.05). Large White breed (13.2 piglets) had the highest average number of alive born piglets with an increase of (0.8 piglet) compared to the lowest recorded with the Landrace breed (12.4 piglets). The combinations of LW L (13.1 piglets) had a higher average of piglets of about (0.6 piglet) compared to the combinations of L LW (12.5 piglets). The average age at first farrowing was 360.1 days. The correlation coefficients between the age of gilts at the first farrowing and the number of born piglets (total and alive) were evaluated as low and were not statistically significant. A statistical difference in the average number of alive born piglets with sows equal to or less than 114 days had a higher average of about 0.8 piglet (P < 0.05) compared to gestation length equal to or more than 115 days. The farrowing interval with 146 days had a greater average number of alive born piglets by 0.2 piglet in comparison to the average when the farrowing interval was 145 days. There was an increase in the average to the number of alive born piglets with weaning to conception interval (WCI) 4 days with an increase of 0.5 piglet (P < 0.05) compared to WCI 5 days.
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Chov prasat v podmínkách subtropické Afriky
 MUKOSHA, Chisenga Emmanuel
The aim of this bachelor thesis was to analyse the different types of pig breeding used in the subtropical regions of Africa. Pigs have been described as one of the most prolific and fast growing livestock that can convert food waste to valuable products. Pigs are commonly kept for meat and fat, but also different sectors such as cosmetics industry, pharmaceutical industry, medical sector and so many other purposes. The thesis further on analyses the reproductive and productive traits of pigs. Finally the thesis takes a look at some factors that affect breeding and productivity of pigs. Diseases pose significant challenge to efficient management and profitability of pig production.
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