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Percentil variation and feeding frequeency supplied in the final development of silver calfish ( Rhandia quelen ) in the phase

机译:银cat(Rhamdia quelen)最终发育阶段中提供的百分位数变化和饲喂频率。

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The experiment was led during a 65-day period, in the Esta??o de Piscicultura/EPAGRI, belonging to Esta??o Experimental of Ca?ador/SC. Forty bowls with the capacity of 40 liters were used, with individual supply and flow, each bowl was considered as an experimental unit. The experimental desing was random in a factorial scheme where the factor A was the percentage of daily feed (1, 2, 3, 4, 5%) and the factor B is the daily frequency of feed (once or twice a day) with 4 repetitions. The variables weight gain, length gain, survival and feed conversion ratio were submitted to of variance analysis. The ration used was bought in the local store with 28%BP and 2.800Kcal of EM/kg of ration inside the criteria, for the species. Six silver catfish (Rhamdia quelen) fingerlings were stored per bowl with medium weight of 0,08 ± 0,01g and medium length of 1,5 ± 0,1cm, 23 days old. The water temperature evaluations were dore daily, always at 09:00h and at 15:00h. At these moments, the fishes were given the daily ration. The fish biometry was done at the beginning of the experiment, 30 days later and at the end of the experiment, 65 days after the beginning, using 100% of the stored fishes, when the measures of total length, individual weight, survival and feed conversion rate were performed. For the raising of silver catfish (Rhamdia quelen) fingerlings in the breeding phase the frequency of ideal feed was once a day at 2 to 5% of its weight per day.
机译:该实验是在65天的时间内进行的,该实验在Casta / SC的Esta-o实验学校/ EPAGRI中进行。使用了40个容量为40升的碗,每个碗的供气量和流量各不相同,每个碗均视为实验单位。在因子分解方案中,实验设计是随机的,其中因子A为每日饲料的百分比(1、2、3、4、5%),因子B为每日饲料频率(每天一次或两次),其中4重复。将变量增重,体长增加,成活率和饲料转化率进行方差分析。所用的口粮是在当地商店购买的,该物种的标准浓度为28%BP,EM / kg口粮为2.800Kcal EM / kg。每个碗中存储了六只银cat鱼(Rhamdia quelen)鱼种,中等重量为0.08±0.01g,中等长度为1.5±0.1cm,持续23天。每天在09:00和15:00进行水温评估。在这些时候,每天给鱼喂一些口粮。在实验开始时,实验结束后30天和实验结束后,实验开始后65天进行鱼类生物特征分析,其中使用了100%的储存鱼类,以测量总长,个体重量,存活率和饲料进行转化率。为了在繁殖期饲养银cat鱼(Rhamdia quelen)鱼种,理想饲料的频率为每天一次,其日重为日重的2%至5%。

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