Research published by Porcine Health Management indicates that growth performance and humoral immune response of the offspring of primiparous sows is improved by cross-fostering with multiparous sows. Primiparous sows (PP) have higher nutrient requirements, fewer piglets born with lower birth weight and growth performance than multiparous sows (MP). The study, conducted by Carlos Piñeiro, Alberto Manso, Edgar G. Manzanilla and Joaquin Morales, aimed to investigate the effect of parity of sow (PP or MP) on the growth performance and humoral immune response of piglets. Methodology：A total of 10 PP and 10 MP (3rd to 5th parity) sows were used. There were 4 treatments in a 2 × 2 factorial arrangement, with piglets from PP sows suckled by PP or MP sows, and piglets from MP sows suckled by PP or MP sows. Average daily gain (ADG) of piglets during the lactation period, and ADG, average daily feed intake (ADFI) and gain:feed ratio (G:F) from weaning to 144 days of age were controlled, and concentrations of immunoglobulins G (IgG) and major acute phase protein (Pig-MAP) were measured as markers of humoral immune response throughout the study. Results：Total ADG was higher in piglets born from MP than in those born from PP (669 vs. 605 g/day; standard error of the mean (SEM) = 15.5, n = 5; P = 0.001) and in piglets suckled by MP than in piglets suckled by PP (655 vs. 620 g/day; SEM = 15.5, n = 5, P = 0.037). Total ADFI was higher for pigs born from MP than for those born from PP (1592 vs. 1438 g/d, SEM = 42.2, n = 5, P < 0.001). Total G:F tended to be higher for pigs suckled by MP than for those suckled by PP (0.43 vs. 0.41, SEM = 0.006, n = 5, P = 0.076). At weaning, IgG serum concentration was higher (30.0 vs. 17.8 mg/mL, SEM = 4.98, n = 15, P = 0.013) in pigs suckled by MP than in piglets suckled by PP. However, IgG concentrations were higher for pigs born from PP than for pigs born from MP on days 116 (P < 0.001) and 144 (P = 0.088). Pig-MAP tended to be lower in pigs suckled by MP than in pigs suckled by PP on days 40 and 60 of age (P < 0.10). Conclusions：The research indicates that the growth performance and humoral immune response of the offspring of PP is improved by cross-fostering with MP. These results open the possibility of an interesting strategy for improving the growth of litters from PP, that is easier to apply than current programmes based on parity segregation, which implies a separate building site to house gilts, first parity sows and their offspring.
Technomic《2019年的餐盘：牛肉和猪肉消费趋势报告》显示，替代蛋白的日益普及以及对动物福利透明度的渴望正在影响消费者对牛肉和猪肉的偏好。“虽然对牛肉和猪肉的需求依然强劲，但由于健康和可持续性方面的担忧，报告显示过去两年消费者对这些蛋白质的消费量略有下降，”Technomic消费者洞察高级经理Anne Mills解释道。 “适应消费者不断变化的牛肉和猪肉消费方式对于增加销售至关重要。应该把重点放在创新和独特的切割或口味上，以满足对高品质天然产品的需求。”该报告的主要内容包括：经常吃牛肉的消费者中有50％的人表示，他们吃的牛肉来自人道对待的动物这点很重要；经常吃猪肉的消费者中有44％的人表示，他们吃的猪肉来自人道对待的动物这点很重要；42％的牛肉消费者希望餐厅能够提供新的独特口味的牛肉主菜；38％的猪肉消费者对尝试用新的独特口味制作的猪肉感兴趣；该报告收集汇总了1,700多个消费者回复的结果，以及来自Ignite数据库的菜单和行业数据。它可以作为食品服务运营商和供应商的指南，帮助他们了解消费者对牛肉和猪肉菜单项目的消费、态度和偏好是如何演变的，并识别有机会的发展领域。
[学术文献] Effects of sodium selenite and L-selenomethionine on feed intake, clinically relevant blood parameters and selenium species in plasma, colostrum and milk from high-yielding sows 进入全文
Journal of Trace Elements in Medicine and Biology
A field study in periparturient sows fed different dietary concentrations of either sodium selenite or L-selenomethionine (SeMet) was conducted to describe some key selenium (Se) species, namely selenoprotein P (SelP), selenoalbumin (SeAlb) and selenomethionine (SeMet) as well as total Se in plasma, colostrum and milk. In addition, feed intake, haematological and biochemical parameters were measured.(#br)Thirty-two sows were allotted to four treatments from 30 days (d) prepartum throughout on average a 32 d lactation period. Sodium selenite supplemented diets contained 0.40 and 0.60 mg Se/kg feed, while SeMet supplemented feed contained 0.26 and 0.43 mg Se/kg feed. Concentrations of sodium selenite and SeMet in complete feed exceeded the upper limits for total dietary Se and added organic Se, respectively, according to the European Union legislation. Blood samples were collected at initiation of the study, at farrowing and at weaning. Colostrum samples were collected at farrowing and milk samples at weaning. Se species were subjected to liquid chromatography, and total Se and Se species were determined using inductively coupled plasma mass spectrometry. The SeMet supplemented diets resulted in higher feed intake and in higher levels of total Se, SelP, SeAlb and SeMet in colostrum compared with sows fed sodium selenite. Similar results were obtained for levels of total Se and SeMet in milk at weaning. The higher dietary sodium selenite concentration in sows’ feed did not increase the Se transfer into colostrum or milk when compared with those receiving the lower level of sodium selenite. However, the increase in serum-Zn from initiation until farrowing, observed in sows fed SeMet as well as the higher glutamate dehydrogenase activity in sodium selenite supplemented sows in this period might indicate a higher requirement of antioxidant defence in sodium selenite-supplemented sows. To our knowledge, the present data on Se species in plasma, colostrum and milk of sows represent the most complete investigation of Se in sows conducted to date. A higher amount of the above-mentioned Se species in the colostrum of sows supplemented with SeMet might strengthen the piglets’ antioxidative system and passive immunity as well as improve their average daily weight gain. The higher feed intake in sows fed diets supplemented with SeMet is an interesting finding that warrants further investigation.
Arbiom, a developer of non-food biomass processing technology, announced last month that it had successfully produced tonnage quantities of its high protein feed ingredient derived from wood at a combined 80,000-L industrial fermentation scale, with partners globally. Anthony Scime, senior VP of business development at Arbiom, told FeedNavigator the tonnage produced represents a significant production milestone for the company and provides it with substantial volumes of SylPro, an enhanced strain of torula yeast (Candida utilis), for use in animal trials as well as for customer sampling.