【摘 要】
:
The number of birth per year was an important indicator of the sow’s productivity and it was related to the duration of breastfeeding.Weaning had been shown to
【机 构】
:
Institute of Animal Nutrition, Northeast Agricultural University,
【出 处】
:
Journal of Northeast Agricultural University(English Edition
论文部分内容阅读
The number of birth per year was an important indicator of the sow’s productivity and it was related to the duration of breastfeeding.Weaning had been shown to be a stressful period.The weaning age had declined over time in order to increase sow productivity and the fact that weaning under modern-day commercial conditions inflicted stress(environmental,nutritional and psychological/social)on pigs and associated with marked changes in gastrointestinal tract(GIT)physiology,microbiology and immunology.However,the early weaning resulted in post-weaning diarrhea,mainly related to intestinal dysbiosis during this rapid adaptation to the new diet.The environment and feed had influence on physiology,gut morphology,immune system and diseases of weaned piglets.
其他文献
In this study, the Single Factor Test (SFT) was used to optimize the pre-freezing conditions of L. plantarum KLDS1.0391 (KLDS1.0391). Further, the Freeze-Drying
An investigation of effect of Latana camara,Tephrosia vogelii and Zingiber officinale applied at 5%,10% and 25% concentrations on flea beetle of cabbage was conduc
In order to reveal the photosynthetic characteristics of C.trichotomum responses to drought,salt and water-logging stresses,one-year-old potted seedlings were t
Effects of dilute acid and acid steam pretreatments were inspected for cellulose production of Eucalyptus leaves through Box-Behenken design,a three variable fa
A 45-day experiment was carried out to evaluate the growth performance,digestive enzymes activity and biochemical response of Cirrhinus mrigala fed graded level
Toll-like receptor (TLR) 4 plays an important role in the innate immune system and has been involved in resistance/ susceptibility to a number of diseases as re
1 防治病害石榴的病害主要有干腐病、褐斑病和麻皮病等,可使果实的品质受到严重影响.
1 饲喂三定rn1.1 定时饲喂要固定次数和时间,以提高犊牛的食欲和消化力.前2周要少喂勤添,日喂乳4次,3~5周时日喂3次,6周后可日喂2次.