Gbore F A, Egbunike G N
Department of Environmental Biology and Fisheries, Adekunle Ajasin University, Akungba-Akoko, Nigeria.
Anim Reprod Sci. 2008 May;105(3-4):392-7. doi: 10.1016/j.anireprosci.2007.11.006. Epub 2007 Nov 19.
Twenty-four male Large White weaning pigs of 8-9 weeks of age averaging 6.94+/-0.26 kg were used to evaluate the effect of dietary fumonisin B(1) (FB(1)) on sperm reserves and production of pubertal boars. The animals were randomly assigned to 4 diets containing 0.2, 5.0, 10.0 and 15.0 mg FB(1)/kg constituting the control, diets 1, 2 and 3, respectively, in a 6-month feeding trial. Dietary FB(1) above 5mg/kg significantly (P<0.05) reduced testicular and epididymal sperm reserves as well as the daily sperm production (DSP) per boar. The total caudal sperm reserves of the animals on diets 2 and 3 were about 70% of those on the control diet. The DSP of the animals on the control diet and diet 1 were significantly (P<0.05) higher than those on diets 2 and 3. The study revealed that male weaning pigs for breeding should not be exposed to dietary FB(1) higher than 5mg/kg for no suppression in sperm production and reproductive performance.
选用24头8 - 9周龄、平均体重6.94±0.26千克的雄性大白断奶仔猪，评估日粮中伏马菌素B1（FB1）对青春期公猪精子储备和精子生成的影响。在一项为期6个月的饲养试验中，将这些动物随机分为4组，分别饲喂含0.2、5.0、10.0和15.0毫克FB1/千克的日粮，分别构成对照组、日粮1、日粮2和日粮3。日粮中FB1含量高于5毫克/千克时，显著（P<0.05）降低了睾丸和附睾中的精子储备以及每头公猪的每日精子生成量（DSP）。日粮2和日粮3组动物的尾部精子总储备量约为对照组的７０％。对照组和日粮1组动物的DSP显著（P<0.05）高于日粮2和日粮3组。该研究表明为避免精子生成和繁殖性能受到抑制，用于繁殖的雄性断奶仔猪不应接触日粮中高于5毫克/千克的FB1。
