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首页> 外文期刊>African Journal of Biotechnology >The analysis of variability of pH level and somatic cell count (SCC) in the colostrum and milk of z?otnicka white sows
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The analysis of variability of pH level and somatic cell count (SCC) in the colostrum and milk of z?otnicka white sows

机译：nick特尼克白色母猪初乳和牛奶中pH水平和体细胞计数（SCC）的变异性分析

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The aim of the research was to analyze the pH level and somatic cell count (SCC) in sows’ colostrum and milk depending on the reproductive?cycle, litter size and consecutive pair of teats. The animal specimens were 30 sows of the Z?otnicka White breed. Z?otnicka pigs were subjected to the National Genetic Resources Conservation Programme. The experiment was made on the farm where pigs of native breeds were kept. The research material was collected in 24 h after parturition and on the 7th, 14th and 21st day of lactation. The somatic cell count (SCC) and pH were labelled in the colostrum and milk. The number and body weight of piglets’ and their mortality were checked on the 1st, 7th, 14th, and 21st day of life. As a result of the research, the influence of the consecutive reproductive cycle and litter size on the somatic cell count and pH in sows’ colostrum and milk was proved. The older and more numerous the litters were, the higher the somatic cell count was and it ranged between 2.48 and 3.05 × (106). On the other hand, the acidity (pH) of colostrum and milk decreased and assumed the values from?6.90 to 6.22. A positive correlation between the pH of colostrum and the weights of piglets aged one day was observed and a negative correlation between the pH of milk on the 21st day and the weights of piglets aged 7, 14 and 21 days. The research also proved dependence between piglets’ body weight and the somatic cell count at the level of α ≤ 0.01 and α ≤ 0.05.
机译：该研究的目的是根据繁殖周期，产仔数和连续一对奶头来分析母猪初乳和牛奶中的pH值和体细胞计数（SCC）。动物标本是Z？otnicka White品种的30头母猪。 Zöotnicka猪受国家遗传资源保护计划的约束。实验是在饲养本地猪的农场上进行的。分娩后24小时以及哺乳第7、14和21天收集研究材料。在初乳和牛奶中标记了体细胞计数（SCC）和pH。在出生后第1、7、14和21天检查仔猪的数量和体重及其死亡率。研究的结果证明了连续繁殖周期和产仔数对母猪初乳和牛奶中体细胞计数和pH的影响。凋落物越老越多，体细胞数越高，其范围在2.48和3.05×（106）之间。另一方面，初乳和牛奶的酸度（pH）降低，其值从6.90降至6.22。观察到初乳的pH与一天龄的仔猪体重之间呈正相关，而21天的牛奶的pH值与7、14和21天的仔猪体重之间呈负相关。研究还证明了仔猪体重与体细胞数之间的依赖性，α≤0.01和α≤0.05。

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