The effect of increasing the dietary valine-to-lysine ratio on sow metabolism, milk production, and litter growth

Anja Varmløse Strathe; Thomas Sønderby Bruun; Jens-Erik Zerrahn; Anne-Helene Tauson; Christian Fink Hansen

doi:10.2527/jas.2015-9267

The effect of increasing the dietary valine-to-lysine ratio on sow metabolism, milk production, and litter growth

Anja Varmløse Strathe, Thomas Sønderby Bruun, Jens-Erik Zerrahn, Anne-Helene Tauson, Christian Fink Hansen

19 Citations (Scopus)

Abstract

A study was conducted to investigate the effect of increasing the dietary valine-to-lysine ratio (Val:Lys) for lactating sows weaning more than 12 piglets. Five hundred fifty-eight sows (parity 1 to 4) were allotted to 6 dietary treatments from 2 d postpartum, when litters were standardized to 14 piglets. Diets were analyzed to have a total dietary Val:Lys of 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 were registered at d 108 of gestation and d 2 and 25 (weaning) postpartum. On a subsample of 72 sows, additional measurements were made: sow BW and BF were measured on d 17 and litter weight was measured on d 10 and 17, and blood and urine samples were collected weekly. The litter size at weaning was not affected by the dietary Val:Lys (P = 0.23) and, on average, the sows weaned 13.0 ± 1.1 piglets. Average daily gain of the litter (2.93 ± 0.53 kg/d; P = 0.84), litter weight at weaning (P = 0.67), the average milk yield (11.3 ± 1.4 kg/d; P = 0.49), and milk contents of fat (P = 0.57), protein (P = 0.18), and lactose (P = 0.20) were not affected by the dietary Val:Lys. Increasing the dietary Val:Lys increased the milk concentration of Val (P < 0.05) and Ile (P < 0.01). The change in sow BW and BF were similar for all sows from d 2 to 17, d 17 to 25, and d 2 to 25 (P > 0.05). During lactation, sows, on average, had a BW and back fat loss of 22.1 ± 12.7 kg and 2.9 ± 1.7 mm, respectively. Plasma concentrations of glucose (P = 0.26), lactate (P = 0.95), urea N (P = 0.84), NEFA (P = 0.24), and creatinine (P = 0.42); urine concentration of creatinine (P = 0.57); and concentrations of AA in whole blood (P > 0.05) were not affected by the dietary Val:Lys. In conclusion, there was no effect of increasing the total dietary Val:Lys above 0.84:1 on sow metabolism and litter performance during lactation.

Original language	English
Journal	Journal of Animal Science
Volume	94
Issue number	1
Pages (from-to)	155-164
Number of pages	10
ISSN	0021-8812
DOIs	https://doi.org/10.2527/jas.2015-9267
Publication status	Published - 8 Jan 2016

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@article{f37011b0dad04247b8478fda93541702,

title = "The effect of increasing the dietary valine-to-lysine ratio on sow metabolism, milk production, and litter growth",

abstract = "A study was conducted to investigate the effect of increasing the dietary valine-to-lysine ratio (Val:Lys) for lactating sows weaning more than 12 piglets. Five hundred fifty-eight sows (parity 1 to 4) were allotted to 6 dietary treatments from 2 d postpartum, when litters were standardized to 14 piglets. Diets were analyzed to have a total dietary Val:Lys of 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 were registered at d 108 of gestation and d 2 and 25 (weaning) postpartum. On a subsample of 72 sows, additional measurements were made: sow BW and BF were measured on d 17 and litter weight was measured on d 10 and 17, and blood and urine samples were collected weekly. The litter size at weaning was not affected by the dietary Val:Lys (P = 0.23) and, on average, the sows weaned 13.0 ± 1.1 piglets. Average daily gain of the litter (2.93 ± 0.53 kg/d; P = 0.84), litter weight at weaning (P = 0.67), the average milk yield (11.3 ± 1.4 kg/d; P = 0.49), and milk contents of fat (P = 0.57), protein (P = 0.18), and lactose (P = 0.20) were not affected by the dietary Val:Lys. Increasing the dietary Val:Lys increased the milk concentration of Val (P < 0.05) and Ile (P < 0.01). The change in sow BW and BF were similar for all sows from d 2 to 17, d 17 to 25, and d 2 to 25 (P > 0.05). During lactation, sows, on average, had a BW and back fat loss of 22.1 ± 12.7 kg and 2.9 ± 1.7 mm, respectively. Plasma concentrations of glucose (P = 0.26), lactate (P = 0.95), urea N (P = 0.84), NEFA (P = 0.24), and creatinine (P = 0.42); urine concentration of creatinine (P = 0.57); and concentrations of AA in whole blood (P > 0.05) were not affected by the dietary Val:Lys. In conclusion, there was no effect of increasing the total dietary Val:Lys above 0.84:1 on sow metabolism and litter performance during lactation.",

author = "Strathe, {Anja Varml{\o}se} and Bruun, {Thomas S{\o}nderby} and Jens-Erik Zerrahn and Anne-Helene Tauson and Hansen, {Christian Fink}",

year = "2016",

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doi = "10.2527/jas.2015-9267",

language = "English",

volume = "94",

pages = "155--164",

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T1 - The effect of increasing the dietary valine-to-lysine ratio on sow metabolism, milk production, and litter growth

AU - Strathe, Anja Varmløse

AU - Bruun, Thomas Sønderby

AU - Zerrahn, Jens-Erik

AU - Tauson, Anne-Helene

AU - Hansen, Christian Fink

PY - 2016/1/8

Y1 - 2016/1/8

N2 - A study was conducted to investigate the effect of increasing the dietary valine-to-lysine ratio (Val:Lys) for lactating sows weaning more than 12 piglets. Five hundred fifty-eight sows (parity 1 to 4) were allotted to 6 dietary treatments from 2 d postpartum, when litters were standardized to 14 piglets. Diets were analyzed to have a total dietary Val:Lys of 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 were registered at d 108 of gestation and d 2 and 25 (weaning) postpartum. On a subsample of 72 sows, additional measurements were made: sow BW and BF were measured on d 17 and litter weight was measured on d 10 and 17, and blood and urine samples were collected weekly. The litter size at weaning was not affected by the dietary Val:Lys (P = 0.23) and, on average, the sows weaned 13.0 ± 1.1 piglets. Average daily gain of the litter (2.93 ± 0.53 kg/d; P = 0.84), litter weight at weaning (P = 0.67), the average milk yield (11.3 ± 1.4 kg/d; P = 0.49), and milk contents of fat (P = 0.57), protein (P = 0.18), and lactose (P = 0.20) were not affected by the dietary Val:Lys. Increasing the dietary Val:Lys increased the milk concentration of Val (P < 0.05) and Ile (P < 0.01). The change in sow BW and BF were similar for all sows from d 2 to 17, d 17 to 25, and d 2 to 25 (P > 0.05). During lactation, sows, on average, had a BW and back fat loss of 22.1 ± 12.7 kg and 2.9 ± 1.7 mm, respectively. Plasma concentrations of glucose (P = 0.26), lactate (P = 0.95), urea N (P = 0.84), NEFA (P = 0.24), and creatinine (P = 0.42); urine concentration of creatinine (P = 0.57); and concentrations of AA in whole blood (P > 0.05) were not affected by the dietary Val:Lys. In conclusion, there was no effect of increasing the total dietary Val:Lys above 0.84:1 on sow metabolism and litter performance during lactation.

AB - A study was conducted to investigate the effect of increasing the dietary valine-to-lysine ratio (Val:Lys) for lactating sows weaning more than 12 piglets. Five hundred fifty-eight sows (parity 1 to 4) were allotted to 6 dietary treatments from 2 d postpartum, when litters were standardized to 14 piglets. Diets were analyzed to have a total dietary Val:Lys of 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 were registered at d 108 of gestation and d 2 and 25 (weaning) postpartum. On a subsample of 72 sows, additional measurements were made: sow BW and BF were measured on d 17 and litter weight was measured on d 10 and 17, and blood and urine samples were collected weekly. The litter size at weaning was not affected by the dietary Val:Lys (P = 0.23) and, on average, the sows weaned 13.0 ± 1.1 piglets. Average daily gain of the litter (2.93 ± 0.53 kg/d; P = 0.84), litter weight at weaning (P = 0.67), the average milk yield (11.3 ± 1.4 kg/d; P = 0.49), and milk contents of fat (P = 0.57), protein (P = 0.18), and lactose (P = 0.20) were not affected by the dietary Val:Lys. Increasing the dietary Val:Lys increased the milk concentration of Val (P < 0.05) and Ile (P < 0.01). The change in sow BW and BF were similar for all sows from d 2 to 17, d 17 to 25, and d 2 to 25 (P > 0.05). During lactation, sows, on average, had a BW and back fat loss of 22.1 ± 12.7 kg and 2.9 ± 1.7 mm, respectively. Plasma concentrations of glucose (P = 0.26), lactate (P = 0.95), urea N (P = 0.84), NEFA (P = 0.24), and creatinine (P = 0.42); urine concentration of creatinine (P = 0.57); and concentrations of AA in whole blood (P > 0.05) were not affected by the dietary Val:Lys. In conclusion, there was no effect of increasing the total dietary Val:Lys above 0.84:1 on sow metabolism and litter performance during lactation.

U2 - 10.2527/jas.2015-9267

DO - 10.2527/jas.2015-9267

M3 - Journal article

C2 - 26812322

SN - 0021-8812

VL - 94

SP - 155

EP - 164

JO - Journal of Animal Science

JF - Journal of Animal Science

IS - 1

ER -

The effect of increasing the dietary valine-to-lysine ratio on sow metabolism, milk production, and litter growth

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