The objective was to quantify relationships between sow body condition and subsequent reproduction. Multiparous sows were measured at breeding (n = 1571) and farrowing (n = 887) on a commercial farm in eastern North C...The objective was to quantify relationships between sow body condition and subsequent reproduction. Multiparous sows were measured at breeding (n = 1571) and farrowing (n = 887) on a commercial farm in eastern North Carolina. Sow body condition measures included: sow body condition caliper (CS), weight (BW), backfat, longissimus muscle area (LMA) and visual body condition score (BCS). Sow production traits were: number born alive (NBA), litter birth weight (LBW), number weaned (NW), piglet survival (PS), litter weaning weight (LWW), wean-to-conception interval (WCI), farrowing rate and lactation average daily feed intake. Data were analyzed in SAS using PROC GLM for continuous traits and PROC GLIMMIX for categorical traits. Breeding CS had a curvilinear relationship (P 0.05) with NBA, LBW, NW, PS and WCI, with a CS of 15 being optimal for NBA, NW and PS and 14 ideal for LBW and WCI. Breeding LMA had a curvilinear relationship (P 0.05) with PS, with 51.5 cm<sup>2</sup> maximizing survival. Breeding BCS had a curvilinear relationship (P 0.05) with NBA, LBW, NW, PS and WCI, with 3.2 being optimal for NBA, NW and WCI and 3.0 ideal for LBW and PS. Farrowing CS had a curvilinear relationship (P 0.05) with NW and PS, with 15 being optimal. Farrowing BCS had a curvilinear relationship (P 0.05) with NW and PS, with 3.6 being ideal. Farrowing BW had a curvilinear relationship (P 0.05) with LWW and PS, with a BW of 220 and 210 kg, respectively, being optimal. Farrowing LMA had a curvilinear relationship (P 0.05) with WCI, with 51.6 cm<sup>2</sup> being ideal. Results provide sow body condition targets to maximize reproductive throughput. The present study suggests feeding sows to a target sow body condition caliper score of 14 to 15 (representing a back angle of 130˚ to 132.5˚) to maximize sow productivity.展开更多
The objective was to determine the association between foot, leg, vulva and shoulder lesions with body condition and reproduction in group housed sows. Whiteline sows (n = 887) were measured before farrowing and at we...The objective was to determine the association between foot, leg, vulva and shoulder lesions with body condition and reproduction in group housed sows. Whiteline sows (n = 887) were measured before farrowing and at weaning at a commercial farm in eastern North Carolina. Foot and leg abnormalities included cracked hooves, toe length differences, overgrown hooves and locomotion. Vulva lesions were scored no lesion or lesion present. Shoulder lesions were scored no lesion, abrasion or open wound. Sow body condition measures included the Knauer sow caliper (CS), body weight (WT), visual body condition score (BCS), backfat (BF) and longissimus muscle area (LMA). Sow production traits included number born alive, litter birth weight, number weaned, litter weaning weight, piglet survival (number weaned ÷ (total number born + net transfer)), wean-to-conception interval and average daily lactation feed intake. Data were analyzed in SAS using PROC GLM for continuous traits and PROC GLIMMIX for categorical traits. Vulva lesions were recorded on 17.6% of sows at farrowing and 0% at weaning. No shoulder lesions, abrasions and open wounds were recorded on 100%, 0% and 0%, respectively, of sows at farrowing and 73%, 21% and 6%, respectively, at weaning. Foot and leg abnormalities were not associated with body condition or reproduction. Vulva lesions at farrowing were associated with lower CS, WT, BCS and BF at farrowing, and reduced piglet survival (4.3%). Lower CS at farrowing was associated with increased shoulder abrasions and open wounds at weaning. Backfat and BCS at farrowing had curvilinear associations with shoulder lesions at weaning, a BF of 39 mm and a BCS of 4.2 minimizing lesions. Results suggest vulva and shoulder lesions were associated with thinner sows at farrowing and vulva lesions at farrowing were associated with lower piglet survival.展开更多
Cutaneous neurofibroma(cNF)is a prevalent clinical manifestation of neurofibromatosis type 1,significantly affecting the well-being and quality of life of the affected individuals.The adoption of reliable and reproduc...Cutaneous neurofibroma(cNF)is a prevalent clinical manifestation of neurofibromatosis type 1,significantly affecting the well-being and quality of life of the affected individuals.The adoption of reliable and reproducible volumetric measurement techniques is essential for precisely evaluating tumor burden and plays a critical role in the development of effective treatments for cNF.This study focuses on widely used volumetric measurement techniques,including vernier calipers,ultrasound,computed tomography,magnetic resonance imaging,and three-dimensional scanning imaging.It outlines the merits and drawbacks of each technique in assessing the cNF load,providing an overview of their current applications and ongoing research advancements in this domain.展开更多
文摘The objective was to quantify relationships between sow body condition and subsequent reproduction. Multiparous sows were measured at breeding (n = 1571) and farrowing (n = 887) on a commercial farm in eastern North Carolina. Sow body condition measures included: sow body condition caliper (CS), weight (BW), backfat, longissimus muscle area (LMA) and visual body condition score (BCS). Sow production traits were: number born alive (NBA), litter birth weight (LBW), number weaned (NW), piglet survival (PS), litter weaning weight (LWW), wean-to-conception interval (WCI), farrowing rate and lactation average daily feed intake. Data were analyzed in SAS using PROC GLM for continuous traits and PROC GLIMMIX for categorical traits. Breeding CS had a curvilinear relationship (P 0.05) with NBA, LBW, NW, PS and WCI, with a CS of 15 being optimal for NBA, NW and PS and 14 ideal for LBW and WCI. Breeding LMA had a curvilinear relationship (P 0.05) with PS, with 51.5 cm<sup>2</sup> maximizing survival. Breeding BCS had a curvilinear relationship (P 0.05) with NBA, LBW, NW, PS and WCI, with 3.2 being optimal for NBA, NW and WCI and 3.0 ideal for LBW and PS. Farrowing CS had a curvilinear relationship (P 0.05) with NW and PS, with 15 being optimal. Farrowing BCS had a curvilinear relationship (P 0.05) with NW and PS, with 3.6 being ideal. Farrowing BW had a curvilinear relationship (P 0.05) with LWW and PS, with a BW of 220 and 210 kg, respectively, being optimal. Farrowing LMA had a curvilinear relationship (P 0.05) with WCI, with 51.6 cm<sup>2</sup> being ideal. Results provide sow body condition targets to maximize reproductive throughput. The present study suggests feeding sows to a target sow body condition caliper score of 14 to 15 (representing a back angle of 130˚ to 132.5˚) to maximize sow productivity.
文摘The objective was to determine the association between foot, leg, vulva and shoulder lesions with body condition and reproduction in group housed sows. Whiteline sows (n = 887) were measured before farrowing and at weaning at a commercial farm in eastern North Carolina. Foot and leg abnormalities included cracked hooves, toe length differences, overgrown hooves and locomotion. Vulva lesions were scored no lesion or lesion present. Shoulder lesions were scored no lesion, abrasion or open wound. Sow body condition measures included the Knauer sow caliper (CS), body weight (WT), visual body condition score (BCS), backfat (BF) and longissimus muscle area (LMA). Sow production traits included number born alive, litter birth weight, number weaned, litter weaning weight, piglet survival (number weaned ÷ (total number born + net transfer)), wean-to-conception interval and average daily lactation feed intake. Data were analyzed in SAS using PROC GLM for continuous traits and PROC GLIMMIX for categorical traits. Vulva lesions were recorded on 17.6% of sows at farrowing and 0% at weaning. No shoulder lesions, abrasions and open wounds were recorded on 100%, 0% and 0%, respectively, of sows at farrowing and 73%, 21% and 6%, respectively, at weaning. Foot and leg abnormalities were not associated with body condition or reproduction. Vulva lesions at farrowing were associated with lower CS, WT, BCS and BF at farrowing, and reduced piglet survival (4.3%). Lower CS at farrowing was associated with increased shoulder abrasions and open wounds at weaning. Backfat and BCS at farrowing had curvilinear associations with shoulder lesions at weaning, a BF of 39 mm and a BCS of 4.2 minimizing lesions. Results suggest vulva and shoulder lesions were associated with thinner sows at farrowing and vulva lesions at farrowing were associated with lower piglet survival.
文摘Cutaneous neurofibroma(cNF)is a prevalent clinical manifestation of neurofibromatosis type 1,significantly affecting the well-being and quality of life of the affected individuals.The adoption of reliable and reproducible volumetric measurement techniques is essential for precisely evaluating tumor burden and plays a critical role in the development of effective treatments for cNF.This study focuses on widely used volumetric measurement techniques,including vernier calipers,ultrasound,computed tomography,magnetic resonance imaging,and three-dimensional scanning imaging.It outlines the merits and drawbacks of each technique in assessing the cNF load,providing an overview of their current applications and ongoing research advancements in this domain.
