Selection for increased litter size have generated hyper-prolific sows that nurses large litters, however limited knowledge is available regarding the connection between milk production, feed intake and body mobilization of these modern sows. The aim current study was to determine what characterized with high production nursing differences different parities effects lactational performance on next reproductive cycle. In total 565 (parity 1 4) were studied from 7 days before farrowing until...

The beneficial effects of dietary fiber (DF) from a behavioral and welfare perspective have been thoroughly studied. However, data on the DF reproductive performance are scarce. Therefore, aim this study was to investigate impact increased supply during last 2 wk gestation stillbirth rate, preweaning mortality, total piglet mortality. A 644 sows were selected for experiment commercial farm, inseminated in weekly batches. Sows control group ( = 310) fed according normal feeding strategy farm...

Abstract The aim of the present study was to determine optimal concentration dietary protein required in transition diets for multiparous sows that enhance farrowing process, colostrum production, and subsequent lactation performance. Forty-eight were allotted one six treatments according body weight (290 ± 3 kg) parity (3.8 0.2) from day 108 gestation until 24 h after onset farrowing. isoenergetic contained increasing concentrations (expressed as standardized ileal digestible [SID] Lys)...

Krogh, U., Bruun, T. S., Amdi, C., Flummer, Poulsen, J. and Theil, P. K. 2015. Colostrum production in sows fed different sources of fiber fat during late gestation. Can. Anim. Sci. 95: 211–223. The objective was to study yield composition colostrum transient milk from 36 second-parity a standard lactation diet (CON) low or one two high-fiber diets based on sugar beet pulp (SBP) alfalfa meal (ALF), combined with three sources, palm fatty acid distillate (PFAD), soybean oil (SOYO)...

The objective of the current study was to quantify loss energy in feces, urine, heat, and milk, evaluate feed efficiency optimal ratio dietary CP for lactating sows fed increasing CP. A total 72 were included experiment from day 2 after parturition until weaning at 28. Sows allocated 6 treatments formulated be isocaloric (9.8 MJ NE/kg) standardized ileal digestible (SID) (11.8, 12.8, 13.4, 14.0, 14.7, 15.6% SID CP). weighed back fat scanned within d farrowing, days 18 ± 3 28 3. Litters 14...

A study was conducted to investigate the effect of increasing dietary valine-to-lysine ratio (Val:Lys) for lactating sows weaning more than 12 piglets. Five hundred fifty-eight (parity 1 4) were allotted 6 treatments from 2 d postpartum, when litters standardized 14 Diets analyzed have a total Val:Lys 0.84, 0.86, 0.88, 0.90, 0.95, or 0.99:1. On all 558 sows, BW, back fat thickness (BF), and litter weight registered at 108 gestation 25 (weaning) postpartum. subsample 72 additional...

Abstract The main objective of this study was to evaluate the impact milk intake, composition, and nutrient intake on piglet growth in lactation body composition at weaning. To piglets, data from one experiment (44 Danish Landrace × Yorkshire Duroc piglets) were used develop prediction equations for pools fat, protein, ash, water based live weight deuterium dilution space (exp. 1). Furthermore, a total 294 piglets (Danish Duroc) 21 sows second parity included 2). In exp. 2, recorded days 3,...

This study aimed to identify risk factors affecting PBW, high CVPBW and the occurrence of IUGR piglets in 12 commercial Danish herds with hyperprolific sows using free-access stalls, floor or electronic sow feeding systems gestation unit. The following were investigated: duration previous lactation, length interval from weaning insemination, gestation, litter size, parity, backfat thickness late type system included newborn 452 litters production indicator averages: 21.3 piglets/L, 1235 g...

This study aimed to determine the optimal supply of lactation feed during transition period minimize farrowing duration (FD) and maximize colostrum yield (CY) quality with overall aim reducing piglet mortality. A total 48 sows were stratified for body weight assigned six levels (1.8, 2.4, 3.1, 3.7, 4.3, 5.0 kg/d) from day 108 gestation until 24 h after onset farrowing. The number born, live-born, stillborn piglets; birth time each piglet; frequency assistance (FA) was recorded, blood samples...

The aims of this study were to investigate 1) the effect high dietary fiber (DF; 19.3% 21.7%) supplemented late gestating sows on mammary uptake and metabolism energy substrates as well colostrum production 2) ontogeny colostral fat lactose synthesis using carbon balance, protein IgG a biomarker. Sows fed either control diet (CON) consisting standard gestation (14.6% DF) until day 108 transition (16.8% from 109 farrowing or DF treatment where part daily ration was replaced with supplement...

D. H. R. Barton and T. Bruun, J. Chem. Soc., 1951, 2728 DOI: 10.1039/JR9510002728

This study investigated the impact of feeding level during last week gestation on performance sows and their litters in subsequent lactation. A total 48 were assigned to one six levels (1.8, 2.4, 3.1, 3.7, 4.3, or 5.0 kg/d) from day 108 until farrowing. Post-farrowing, all fed similarly lactation with a gradual increase feed allowance accordance Danish recommendation it reached maximum 9 kg/d 17 Plasma samples collected farrowing lactation, sow's body weight backfat thickness, milk taken...

This study aimed to investigate the effect of increasing dietary protein during gestation on sows' ability re-establish body reserves and evaluate impact reproductive performance multiparous sows. The experiment was carried out in a commercial Danish herd 431 sows were included allotted one five treatments. treatment period extended from time service until moved farrowing section, approximately 5 d before expected farrowing. Experimental diets isoenergetic contained concentrations...

Sow lactation diets often include fat sources without considering the impact on digestion, metabolism and performance. Fiber ingredients may reduce feed intake are completely excluded from diets, although locally available be cost-efficient alternatives to partly replace cereals in diets. Thus, a standard diet low dietary fiber, two high-fiber based sugar beet pulp (SBP) or alfalfa meal (ALF) were formulated. The SBP was high soluble non-starch polysaccharides (NSP), whereas ALF being...

The objective of the current study was to determine optimal concentration dietary standardized ileal digestible (SID) Lys required maximize litter gain and minimize sow BW loss in modern high-yielding lactating sows when SID CP kept constant across treatments. A total 396 parity 1 5 (L × Y, DanBred, Herlev, Denmark) were included from day 3 after farrowing until weaning at 26. Sows allocated 6 treatments increasing (6.19, 6.90, 7.63, 8.33, 9.04, 9.76 g/kg). Diets isoenergetic (14.04 MJ ME/kg...

The objective of the current study was to determine requirement standardized ileal digestible (SID) CP for maximal litter gain in high-yielding lactating sows due insufficient supply either His, Leu, Val, Ile, or Phe. content SID Lys formulated at 95% recommended level, while that Met, Met+Cys, Thr, and Trp 100% level slightly greater using crystalline AA. A total 540 parity 1 5 (L×Y, DanBred, Herlev, Denmark) were included from day 3 after farrowing until weaning 26. Sows allocated six...

The objective of the current study was to investigate effect supplementing a mono-component xylanase coarsely ground lactation diet (feed fraction particle size above 2 mm more than 17%) based on wheat, barley, and soybean meal nutrient digestibility performance lactating sows. A total 30 cross-bred (Danish Landrace × Yorkshire) multiparous sows (parity 5) were used. Sows fed standard gestation from mating until day 108 gestation, then stratified for BW (295.4 ± 26.1 kg average BW) parity...

The objectives of the study were 1) to quantify dietary N utilized for milk and loss in urine feces, sows fed increasing CP with a constant amount Lys, Met, Thr, Trp meet their standardized ileal digestible (SID) requirement 2) determine optimal concentration based on utilization production. Seventy-two 1 6 treatments, formulated increase SID as followed: 11.8, 12.8, 13.4, 14.0, 14.7, 15.6% be isocaloric (9.8 MJ NE/kg). Diets from day 2 after parturition until weaning at 28 (± 3 d). Litters...

Hyper-prolific sows nurse more piglets than less productive sows, putting a high demand on the nutrient supply for milk production. In addition, production level can increase mobilization from body tissues. The effect of increased dietary protein (104, 113, 121, 129, 139 and 150 g standardized ileal digestible (SID) CP/kg) sow composition, plasma metabolite concentrations was investigated litter standardization (day 2) until weaning 24). Sow composition determined using deuterium oxide...