Assessment of different faecal collection methods -

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Assessment of different faecal collection methods on Atlantic salmon fish meal, soybean meal and bacterial meal apparent digestibility

Dissection process must be in the fish within 2min after anesthesia Zhang Dongning: School of Life Sciences, Institute of Aquatic Economic Animals. Completed. Experiment 2,[link widoczny dla zalogowanych], the initial weight of salmon 200g, l2 fish per case,[link widoczny dla zalogowanych], testing the 14d,[link widoczny dla zalogowanych], screening fecal deposits were collected for the last week, squeezing the last day. Mechanical sieving process of collecting stool towels are still feeding. Daily food consumption is not monitored. Table 1 Feed composition and chemical composition of 2 l of test results,[link widoczny dla zalogowanych], 48d later. Rh96g salmon fish meal increased to l3lg. SGR is O. 65 (Table 2); and soybean meal group and the fish, the growth of bacteria is relatively slow. SGR were O. 57 and 0.6O. Feed conversion rate of less than 0.9,[link widoczny dla zalogowanych], between groups no significant difference. Test 1. 3 groups of fecal matter content of the average 1 = There was significant difference (Table 3). Soybean meal apparent digestibility of organic matter than fish meal and bacterial meal group, while the apparent digestibility of nitrogen was significantly higher than the soybean meal group and the bacterial powder group. The towel material content in feed for 78% of the variability of performance (statistical methods slightly. The same below), on the apparent digestibility of organic matter in the variability of 46%, while the apparent nitrogen absorption prison Fisheries A breeding population can be deleted eding 1l% of degeneration. Table 2 Growth and feed composition of fish ��mean �� standard deviation) 36 Mace | j} JI since 20o6 No. 2 soybean meal diet group diet group different groups of bacteria powder feed methods to collect organic matter, nitrogen and the apparent digestible energy absorption rate of the same trend, while the apparent digestibility of fat from the impact of collection methods. Different collection methods on the apparent digestibility of organic matter and test the impact of l is similar, but the apparent nitrogen absorption rate of test 1 than in large (Table 4). Collection methods do not affect the apparent digestibility of fat, but the apparent digestible energy absorption rate variability of 28%. Note: different letters on behalf of peer feed significant difference between (P <��1O5). Table 4 different methods of screening and freeze-dried feces collected in Table 3 different methods to collect the fecal dry matter content and apparent digestibility% soybean meal diet group diet group diet group method of average bacterial powder Note: mean �� standard deviation abc feed on behalf of the same line l between the significant differences between students (P <O.05); XYZ represents a different method of collecting fecal significant difference between (P <O.05); integrated feed and faeces collection method only when pay a significant effect when the king there. Following the same. Experiment l, the collection methods of the average dry matter content and organic manure, the apparent digestibility of nitrogen was significantly affected. Different faecal collection methods lead to significantly different dry matter content. Mechanical sieving the apparent organic matter and nitrogen digestibility value was significantly higher than the other two methods. Fecal collection methods on the variability of dry matter concentration of 12%. On the apparent digestibility of organic matter in 49% of the variability of the impact of the apparent nitrogen absorption rate of 76% of the variability of effects. Experiment 2. All feed on organic matter and the apparent digestibility of fat was significantly different effect (Table 4). Fish meal and soybean meal on apparent digestibility of nitrogen impact than a large group of bacteria powder. Meanwhile, soybean meal and bacterial meal group the apparent absorption of energy was lower than fish meal. Feed on organic matter digestion and absorption rate of the apparent variability of 38%, 77% fat, 44% of energy, nitrogen was l3%. Apparent digestibility% soybean meal diet group diet group method of average bacterial powder diet group concluded 3.1 Test l Test 3 towels, 3 groups of fish feed, fecal dry matter content, organic matter and fat digestion and absorption rate of the apparent significant difference (soybean meal diet group <bacterial meal diet group <fish meal diet group). Fishmeal diet group, the apparent digestibility of nitrogen was significantly higher than the other two diet groups. 3.2 Experiment 2, fish meal apparent digestibility of nitrogen and soybean meal group was the same. Soybean meal and bacterial meal group the apparent digestibility of energy lower than fish meal. 3-3 Test 1. 3 different fecal collection methods to obtain the dry matter content was significantly different (extrusion method <mechanical sieving <dissection). 3.4 Experiment 2, 3 different collection methods from organic manure, nitrogen and apparent digestibility of energy and test the same trend in l (extrusion method <mechanical sieving <dissection), fat The apparent digestibility was no significant difference. �� (from AQUACULTURE, 1998 ��)}}} l0 ��;}}

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