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The effect of linseed oil to pregnant and lactating ewes for rearing lambs
KLÁTIL, Jaroslav
The aim of this thesis was to evaluate the influence of the addition of linseed oil to pregnant and lactating ewes to rearing of lambs. For more conclusive results ewes were divided into groups that received linseed oil (for testing) and the group without the constituents of linseed oil in the diet (control). Effect of linseed oil was demonstrated in ewes blood analysis. Analysis of blood parameters were monitored three - cholesterol, triglycerides and lipase. Physiological levels of cholesterol in sheep is 1,7 mmol.l-1. Before the test was observed in ewes cholesterol levels from 1,6 to 2,2 mmol.l-1 and after the test in the range from 1,3 to 1-9 mmol.l-1. Cholesterol after the test decreased in both the test and the control group. Natural levels of triglycerides in ewes is 0.8 mmol.l-1. In our case, the TAG content was below this threshold. Before the test from 0,18 to 0,22 mmol.l-1 after the test from 0.08 to 0.19 mmol.l-1. In test and control groups after the test content triglycerides decreased. After the test, reducing the content of the lipase in the test group and an increase of the content of the control group. Lambs of control and test group ewes were compared on the following criteria: average daily gain (higher increases should control group lambs), weight in control days, the chemical composition of meat - nitrogen, protein and fats. The normal composition of lamb meat: 21 % crude protein, 4,75 % fat and 1,1 % ash. In our case, the content of the NL test group 22,3 % and 21,8 % of the control group, the fat content of the test group and the control 6,5 % and 5,4 %, ash content in the test group and the control 1,23 % and 1,25 %. Further monitoring criteria: weight in carcass weight (between groups) and analysis of blood (cholesterol, triglycerides and lipase) - no difference between test and control lambs.
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The comparison of sheep nutrition in conventional and ecological conditions
KLÁTIL, Jaroslav
Destination of bachelor work was purchase grass pattern from individual boxes and their successive analysis. Village in who we pursue purchase pasture name Hojovice, which lie in locality district Pelhřimov. We follow herd - 13 sheep, 9 lamb and one ram. Deal with meat race Charolais. Pattern we take away in year 2009 of six boxes about area value one metre square and it ago pasture and after her. Collected sample were weigh in fresh condition and after drying. Right after purchase we are perform analysis material with respect to representation individual grass mate. Completion analytical analysis pasture we obtain information about representation individual material, which were engaged in take away pasture pattern. Analysis was find, that no pattern contain more than 5 % fat. Border content coarse fibre was in all case over 17 %. Also in content NDF collected sample fulfilment optimum gamut from 28 to 32 % NDF. Possible say, that of given purchase and analysis, we are about pasture found, that is not harmful. In spite of solitary pasture be watch herd suffice to covering all energy. Thereby is here possibility extra feeding and dam with drinking water. Good pasture growth we would achieve for example wit sowing, great entry manure and better preparation pasture after fat.
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