Effect of injecting 2- and 3-year-old ewes with selenium and selenium–vitamin E on reproduction and rearing of lambs
作者： M Gabryszuk , J Klewiec
DOI: 10.1016/S0921-4488(02)00005-6
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摘要: Abstract The experiment was conducted on 150 Polish Merino ewes divided into six groups. Three groups consisted of 2-year-old ewes, before their first lambing and three the 3-year-old after lambing. Within each age category, one group treated with 5 ml 0.1% sodium selenate 250 mg vitamin E while third a control group. effect i.m. injection Se plus oestrus, fertility, prolificacy, number lambs reared, weight at birth live gain for 28 days investigated. blood plasma sampled twice injection, mean concentration in were 1.7 1.47 μmol l−1 1.11 1.37 μmol l−1, respectively. corresponding values 3.47 5.73 μmol l−1 younger 3.38 5.0 μmol l−1 older ewes. Two consecutive injections (before mating lambing) significantly (p
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