جستجوی مقالات مرتبط با کلیدواژه « قم » در نشریات گروه « علوم دام »

The main aim of this study was to investigate level and pattern of primary mortalities of broiler farms، and the effects of different in-farm and out-farm factors. Data from managing cards of 476 damaged farms (from a total of 1،062 units) were obtained from Agri-Bank insurance bureau and mortalities of total and the first three weeks were calculated، transformed in Log10 basis and analyzed by one-way ANOVA and regression statistical methods. Mortalities of total and damaged farms were 24 and 46. 11% and mortalities of the first three weeks were 1. 59، 1. 18 and 4. 17%، respectively. Chick strain، season، farm technical level، ventilation/lighting class، ownership and breeder flock characteristics such as hen age، chick weight، and the titers of four main contagious poultry diseases had no significant effect on 1st week mortality rate. Breeder company، regions of the studied geographic area، farm capacity، number of salons، feed provision method، farm distance to village and between saloon distance significantly affect the first week mortality rate (P<0. 05). Peak of first week mortality was in the fourth day، coincided with the broiler standards from the rate and pattern standpoints. At day 21 and 14، about 41. 1 and 11. 5 percents of farms faced with a serious problem. The regression analysis revealed that total mortality had no relation with first week mortality and after 2 weeks، contagious diseases occurred. This survey demonstrated that first week mortality pattern of broiler farms is near standard; breeder factors was non-significant and the most important factors were geographic situation، salon type and breeder company. Early after the second week، farms faced with different diseases and there was no relation between total farm mortalities and chick qualities.

This study was conducted to evaluate sheep husbandry system and some of its related characteristics at Qom province. The main parameters were livestock details، type of population، sheep and goat flock size، data related to lambing rate، selling، fattening، substituting، mortality and also informations about quantitative traits. 161 flocks were chosen based on classification and random sampling through each classe. Data from each flock is gathered using Questioner form. Considered data were about sheep and goat rearing condition at Qom province and their management systems. Present and past population size، number of sheep (any type of sheep)، goat، lamb، kid and other type of animals in flocks were followed as well as number of lambing، culling، rearing، selling، fattening، substituting and mortality. Data were analyzed by SPSS software and descriptive statistics regarding parameters were calculated. According to the results، average flock size in Qom province was 444 ± 57 head per flock. Average number of ewe، ram، young ram and ewe and lambs were 184±26; 5±1; 13±5; 35±9 and 133±22 head respectively. Average number of female goat، male goat and kids were 42±10; 5±1 and 27±7 head respectively. Average weaning and separating age for lambs were 3 and 4 months and average number of mortality in adult sheep، lambs، goat Kid and adult goats were 3±10; 5±14; 5±14 and 1±4 head respectively.