Schnier Sandra, Middendorf Lea, Janssen Heiko, Brüning Carla, Rohn Karl, Visscher Christian
1Institute for Animal Nutrition, University of Veterinary Medicine Hannover, Foundation, Bischofsholer Damm 15, D-30173 Hannover, Germany.
Chamber of Agriculture of Lower Saxony, Mars-la-Tour-Str. 6, D-26121 Oldenburg, Germany.
Porcine Health Manag. 2019 Jun 14;5:14. doi: 10.1186/s40813-019-0121-1. eCollection 2019.
The conventional farrowing crate is criticised due to the limited mobility of sows during farrowing and lactation. The present study aims to investigate the effects of three different farrowing systems on the performance of suckling neonates on the basis of immunocrit (IC; a quantification of immunoglobulins), serum amino acid (AA) concentrations and growth performance.
From a total of 149 sows placed in three housing systems (farrowing crate - FC, loose housing - LH, group housing - GH), 18 sows and their respective litters, formed the basis for a two-factorial study design (farrowing system and body weight (BW) of neonates). Therefore, also blood samples of two light (1.0-1.4 kg) and two heavy (≥ 1.4 kg) piglets were taken within 48 h post natum (p.n.) and on the day of weaning (day 26) to determine the immunocrit (IC; a quantification of immunoglobulins) and levels of serum AAs.
The IC (FC: 0.148, LH: 0.153, GH: 0.117) as well as serum levels of arginine, leucine, lysine, proline and threonine within 48 h p.n. were significantly lower in GH. Additionally, in general, these piglets showed (except for the first week of life) the lowest average daily weight gain. On the day of weaning, piglets in GH had the lowest levels of arginine (in mg/dL; FC: 3.68, LH: 3.40, GH: 2.94) and threonine (in mg/dL; FC: 3.59, LH: 3.02, GH: 2.49). The concentrations of leucine, lysine, proline and valine at this time were significantly lower in LH.
The observed significant lower IC indicates a lower Ig intake of piglets in the tested GH. No significant differences regarding the IC and AA levels within 48 h p.n. of the piglets in FC and LH could be seen. In principle, differences at weaning in AA levels were rather small, although the body weight of GH piglets at weaning was lower. Therefore, further research needs to clarify whether there are medium-term effects on health and performance.
传统的产仔栏因母猪在分娩和哺乳期间活动受限而受到批评。本研究旨在基于免疫比容（IC；免疫球蛋白的定量）、血清氨基酸（AA）浓度和生长性能，研究三种不同产仔系统对哺乳新生仔猪性能的影响。
在三种饲养系统（产仔栏 - FC、散养 - LH、群养 - GH）中的149头母猪中，选取18头母猪及其各自的仔猪，构成双因素研究设计（产仔系统和新生仔猪体重（BW））的基础。因此，在出生后48小时内（p.n.）和断奶日（第26天），还采集了两头轻体重（1.0 - 1.4千克）和两头重体重（≥1.4千克）仔猪的血样，以测定免疫比容（IC；免疫球蛋白的定量）和血清氨基酸水平。
群养组（GH）仔猪出生后48小时内的免疫比容（FC：0.148，LH：0.153，GH：0.117）以及精氨酸、亮氨酸、赖氨酸、脯氨酸和苏氨酸的血清水平显著较低。此外，总体而言，这些仔猪（除生命的第一周外）平均日增重最低。在断奶日，群养组（GH）仔猪的精氨酸水平（毫克/分升；FC：3.68，LH：3.40，GH：2.94）和苏氨酸水平（毫克/分升；FC：3.59，LH：3.02，GH：
