Lysine and metabolyzable energy requirements of lactating sows for subsequent reproductive performance

Santos, José Maurı́cio Gonçalves dos; Moreira, Ivan; Martins, Elias Nunes

doi:10.1590/s1516-89132006000500006

Cited by 6 publications

(5 citation statements)

References 16 publications

(23 reference statements)

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“…Taken together, lysine intake that ranged from 33.7 to 52.1 g/d met or supported piglet growth with no negative effects. The weaning weight of the piglets in the present study was similar to the results that observed by Touchette et al [32], Thaler et al [37], and Santos et al [38], who reported no improvement in litter performance with increasing lysine intake during lactation. In accordance with Knabe et al [30], the piglet weights at day 21 of lactation were not increased by feeding a corn-SBM-based diet with 0.9% lysine and they concluded that a 0.75% lysine diet met the nutrient needs of the sows or nutrient deficiency limited the sow's ability to respond to the higher lysine intake.…”

Section: )supporting

confidence: 91%

“…In accordance with Knabe et al [30], the piglet weights at day 21 of lactation were not increased by feeding a corn-SBM-based diet with 0.9% lysine and they concluded that a 0.75% lysine diet met the nutrient needs of the sows or nutrient deficiency limited the sow's ability to respond to the higher lysine intake. In addition, the lack of response to increasing levels of lysine on litter performance (even with the addition of DL-methionine, L-threonine, and L-tryptophan to achieve balance in https://doi.org/10.5187/jast.2020.62.3.334 the diets) could be related to a lack of other limiting amino acids [32,38]. Thus, lysine intake during lactation met the minimum lysine requirement or induced amino acid imbalance of lactating sows and did not show any significant differences in litter growth as a result of the lysine effect.…”

Section: )mentioning

confidence: 99%

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Effects of dietary energy and lysine levels on physiological responses, reproductive performance, blood profiles, and milk composition in primiparous sows

Hong¹,

Fang²,

Cho³

2020

J Anim Sci Technol

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The adequate intake of energy and lysine for primiparous sows are necessary for maternal growth of sows and growth of their progeny. This study was conducted to evaluate the effects of dietary energy and lysine levels on primiparous sows and their progeny. A total of 48 gilts (Yorkshire × Landrace), with an initial body weight (BW) of 168.1 ± 9.71 kg and at day 35 of gestation, were allotted to eight treatment groups with a 2 × 4 factorial arrangement. The first factor was metabolizable energy levels in diet (3,265 or 3,365 kcal of ME/kg), and the second factor was lysine levels in diet (gestation 0.55%, 0.65%, 0.75%, 0.85%, lactation 0.70%, 0.85%, 1.00%, 1.15%). The BW gain (p = 0.07) and backfat thickness (p = 0.09) in the gestation period showed a tendency to be increased in sows fed the high-energy diets. In the lactation period, sows fed the high-energy diets tended to be greater BW (p = 0.09) and less BW loss (p = 0.05) than those of sows fed the low-energy diets. Sows fed high-energy diets had a tendency of greater piglet weight at day 21 of lactation and greater piglet weight gain (p = 0.08 and p = 0.08, respectively). Although the blood urea nitrogen (BUN) was increased linearly as dietary lysine level increased at day 110 of gestation (Linear, p = 0.03), the BUN was decreased linearly as dietary lysine level increase at day 21 of lactation (Linear, p < 0.01). In the composition of colostrum, sows fed high-energy diets had greater casein, protein, total solid, solid not fat, and free fatty acid concentrations than those of sows fed low-energy diets (p < 0.05). Supplementation of total lysine 0.75% for gestation and 1.00% for lactation with 3,365 kcal of ME/kg energy level could be applied to the primiparous sows' diet to improve performance of sows and growth of their progeny.

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Section: )supporting

confidence: 91%

Section: )mentioning

confidence: 99%

Effects of dietary energy and lysine levels on physiological responses, reproductive performance, blood profiles, and milk composition in primiparous sows

Hong¹,

Fang²,

Cho³

2020

J Anim Sci Technol

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“…The weaning-to-estrus interval was shortened as the SID-Lys:ME ratio increased in Exp.2. Other studies have reported that increasing lysine intake did not affect weaning-to-estrus interval of sows [ 21 , 29 , 30 ]. These results may be due to the large lactation weight loss for sows rather than the low lysine intake.…”

Section: Discussionmentioning

confidence: 99%

The effect of the ratio of standardized ileal digestible lysine to metabolizable energy on growth performance, blood metabolites and hormones of lactating sows

Xue

Piao

et al. 2012

J Animal Sci Biotechnol

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A total of 335 lactating sows (Landrace × Large White) were used in two experiments to determine the optimum ratio of standardized ileal digestible lysine (SID-Lys) to metabolizable energy (ME) for mixed parity sows during lactation. In Exp. 1, 185 sows (weighing an average of 256.2 ± 6.5 kg and having an average parity of 3.4 ± 0.3) were allocated to one of six experimental diets in a completely randomized block design within parity groups (1, 2, and 3+). The experimental diets were formulated to contain 3.06, 3.16, 3.20, 3.25, 3.30 or 3.40 Mcal/kg of ME and each diet was fed to the sows throughout a 28 day lactation. All diets provided a similar SID-lysine level (0.86%). As a result, the diets provided a SID-Lys:ME ratio of 2.81, 2.72, 2.69, 2.65, 2.61 or 2.53 g/Mcal ME. Sow feed intake was significantly (P < 0.01) affected by the energy content of the diet as well as by sow parity. Using regression analysis, feed intake was shown to be maximized at 3.25, 3.21, 3.21 and 3.21 Mcal/kg of ME for parity 1, 2, 3+ sows and the entire cohort of sows respectively (quadratic; P < 0.01). In addition, the result of feed intake can be expressed as 2.65, 2.69, 2.69 and 2.68 g/Mcal based on analysis of SID-Lys:ME ratio. Litter weight gain was affected by dietary treatment for parity 3+ sows and the entire cohort (P < 0.01). Based on regression analysis, litter weight gain was maximized at 3.25 and 3.24 Mcal/kg of ME for parity 3+ (quadratic; P < 0.01) and the entire cohort (quadratic; P < 0.01). Similarly, the result of litter weight gain could be expressed as 2.65 and 2.66 g/Mcal of SID-Lys:ME ratio. Therefore, 3.25 Mcal/kg of ME was selected for Exp. 2 in which 150 sows (weighing 254.6 ± 7.3 kg and having an average parity of 3.4 ± 0.4) were allocated to one of five treatments in a completely randomized block design within parity (1, 2, and 3+). The experimental diets were formulated to contain 2.1, 2.4, 2.7, 3.0 or 3.3 g/Mcal of SID-Lys:ME ratio with all diets providing 3.25 Mcal/kg of ME. The diets were fed to the sows throughout a 28 day lactation. Sow body weight loss was affected by dietary treatment (parity 3+ sows, P = 0.02; entire cohort, P < 0.01) and by sow parity (P < 0.01). Litter weight at weaning and litter weight gain were affected by dietary treatment for parity 1, 2, 3+ sows and the entire cohort (P < 0.01) as well as by sow parity (P < 0.01). Plasma urea nitrogen (P < 0.01), creatinine (P < 0.01) and non-esterifide fatty acids (P = 0.04) were decreased as the SID-Lys:ME ratio of the diet increased. Insulin-like growth factor-1 (P = 0.02), estradiol (P < 0.01) and luteinizing hormone (P = 0.02) were increased as the SID-Lys:ME ratio in diet increased. Based on a broken-line model, the estimated SID-Lys:ME ratio to maximize litter weight gain was estimated to be 3.05 g/Mcal.

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“…Reproductive experience affects a series of reproductive performance parameters, such as calving rate (Buttram and Willham, 1989), litter size in dogs (Gavrilovic et al, 2008), weaning-toestrous interval in sows (Santos et al, 2006) and cattle (Melendez et al, 2008), lactation length and milk yield in cattle (Parra-Bracamonte et al, 2005). Reproductive experience also affects endocrine, neurochemical and behavioral responses.…”

Section: Introductionmentioning

confidence: 99%

Modulation of post-coital dopaminergic tone by prior parity

Sider

Hucke

Felício

2010

Braz. arch. biol. technol.

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Lysine and metabolyzable energy requirements of lactating sows for subsequent reproductive performance

Cited by 6 publications

References 16 publications

Effects of dietary energy and lysine levels on physiological responses, reproductive performance, blood profiles, and milk composition in primiparous sows

Effects of dietary energy and lysine levels on physiological responses, reproductive performance, blood profiles, and milk composition in primiparous sows

The effect of the ratio of standardized ileal digestible lysine to metabolizable energy on growth performance, blood metabolites and hormones of lactating sows

Modulation of post-coital dopaminergic tone by prior parity

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