Untersuchungen zum energie‐ und stickstoffumsatz von graviden und laktierenden sauen sowie von saugferkeln

Beyer, M.; Jentsch, W.; Hoffmann, L.; Schiemann, R.

doi:10.1080/17450399309386078

Cited by 7 publications

(5 citation statements)

References 13 publications

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“…We have earlier reported effects of different energy supply levels during gestation and lactation on body composition of sows (Beyer et al 1993a) considering also the growth of conceptus and reproductive tissues (Beyer et al 1993b(Beyer et al , 1994a, on energy and nitrogen metabolism of pregnant (Beyer et al 1994b) and lactating sows (Beyer 1986) and on litter weight gain during suckling in 1st, 2nd, and 4th parity sows. We now aimed to evaluate the effects of energy supply levels during gestation and lactation on milk production and composition in sows of 1st, 2nd, and 4th parity.…”

Section: Introductionmentioning

confidence: 94%

“…During the first 24 h of lactation, counting from the first piglet's birth, three milk samples (1 -6 h; 7 -12 h; 13 -24 h) were obtained during labour-pains and suckling of new-born piglets without oxytocin administration (Beyer 1986). Thereafter, one sample was taken after i.m.…”

Section: Standardized Suckling and Milk Samplingmentioning

confidence: 99%

“…Protein digestibility was between 84.6 + 3.1 and 86.0 + 2.8%. Metabolizable energy corresponded to 79.0 -81.5% gross energy (GE) (Beyer 1986;Beyer et al 1994bBeyer et al , 1995.…”

Section: Experimental Design Animals and Dietsmentioning

confidence: 99%

“…In order to determine whether there was an effect of piglet handling on milk production as compared with free access to the sow ADG of the piglets was compared (Beyer 1986). During measurement of milk production ADG of piglets amounted to 151 g/d which contrasted to 174 g/d when piglets had free access to the sow.…”

Section: Standardized Suckling and Milk Samplingmentioning

confidence: 99%

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Effects of dietary energy intake during gestation and lactation on milk yield and composition of first, second and fourth parity sows

Beyer

Jentsch

Kuhla

et al. 2007

Archives of Animal Nutrition

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In order to determine the effects of a varied level of dietary energy intake during pregnancy and lactation on milk yield and composition, first, second and fourth parity sows (Large White x German Landrace) were provided with energy at a level of either: (i) 100% of ME requirement (MEreq) during pregnancy and lactation, (ii) 120% MEreq during pregnancy and 80% during lactation, and (iii) 80% MEreq during pregnancy and 120% during lactation. In spite of equal target levels feed analysis revealed that gestating first parity sows with 120/80 treatment combination and lactating sows of 80/120 treatment combination received 25, and 11-17% more digestible N than in the respective 100/100 treatment combination. Irrespective of this 120/80 sows responded with the highest milk DM, fat, and energy contents, and the lowest lactose concentrations whereas protein levels where not affected, irrespective of parity (p < 0.05). Milk yield of sows in 1st and 4th lactation was 85 and 106% of that in 2nd lactation, respectively. Average milk composition was 18.1% DM, 4.9% protein, 6.8% fat, 5.6% lactose, and 0.8% ash. Milk composition changes ceased at day 7 of lactation with a reduction of milk GE and protein, and an increase of lactose content. Concentrations of threonine, arginine, valine, leucine, tyrosine, phenylalanine, cystine, and tryptophan, as well as stearic, oleic, and linoleic acid were higher in colostrum than in milk at later lactation stages. In contrast, laurine, myristic, palmitic, and palmitoleic acids were lower concentrated in colostrum. In conclusion, these results illustrate the importance of body reserve mobilization for milk production in sows and indicate that low energy supply during gestation cannot be compensated by higher energy supply during lactation.

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Section: Introductionmentioning

confidence: 94%

Section: Standardized Suckling and Milk Samplingmentioning

confidence: 99%

“…Protein digestibility was between 84.6 + 3.1 and 86.0 + 2.8%. Metabolizable energy corresponded to 79.0 -81.5% gross energy (GE) (Beyer 1986;Beyer et al 1994bBeyer et al , 1995.…”

Section: Experimental Design Animals and Dietsmentioning

confidence: 99%

Section: Standardized Suckling and Milk Samplingmentioning

confidence: 99%

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Effects of dietary energy intake during gestation and lactation on milk yield and composition of first, second and fourth parity sows

Beyer

Jentsch

Kuhla

et al. 2007

Archives of Animal Nutrition

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“…Everts et al (1995) used an efficiency of utilizing body protein for amino acids in milk of 0.86. This was based on research of Beyer (1986), who determined the efficiency of utilizing body protein for milk protein in lactating sows. NRC (2012), Hansen et al (2014) and Huber et al (2018) used an efficiency of utilizing body protein for amino acids in milk of 0.87, 0.88 and 0.87, respectively, the same value as the energetic efficiency of utilizing body energy reserves for milk energy output.…”

Section: Efficiency Of Amino Acid Utilizationmentioning

confidence: 99%

Energy and amino acid requirements of gestating and lactating sows

Peet–Schwering¹,

Bikker²

2019

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In the Netherlands, energy and amino acid recommendations for pigs are published by the Centraal Veevoederbureau (CVB, Central Bureau for Livestock Feeding). The CVB recommendations for sows, have not been updated since 1995. Because the litter size and milk production of the sows have increased in the last 20 years and sows have become heavier and have less backfat, the energy and amino acid recommendations from 1995 had to be updated. The updated energy and amino acid recommendations for parity 1 to 5 gestating and lactating sows are presented in this report.

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Untersuchungen zum energie‐ und stickstoffumsatz von graviden und laktierenden sauen sowie von saugferkeln

Beyer

Jentsch²,

Hoffmann³

et al. 1993

Archiv für Tierernaehrung

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The study is based on the results obtained from the slaughter of 5 sows on the first day of pregnancy and the first day of the experiment respectively (pregnant and non-pregnant sows resp.), of 43 pregnant sows on the 56th, 84th, 98th, 105th and 113rd day of gestation as well as 17 lactating sows on the 26th day of lactation. The animal bodies of pregnant sows were divided in 15 fractions and those of non-pregnant and lactating sows in 12 fractions. The investigations were carried out with 3 x 3 variants of litter number (1, 2, 4) and energy supply (120, 100, 80% of requirement recommendation). The chemical composition and the energy content of the animal body fractions as well as their relative portions of the empty body were largely constant during the course of gestation with the exception of the reproductive organs and the conception products. The physiological stage of lactation connected with limited mobilization of body reserves resulted in a reduction in fat content of some body fractions as well as a limited increase of the portions of body organs contrary to the portions of body tissues of the empty body. In comparison with sows of litter numbers 1 and 2 the sows of litter number 4 were characterized by higher portions of bones and meat, valuable parts as well as by smaller portions of depotfat and meat from head and belly of empty body. The raising of the energy supply of the pregnant sows increased the portion of the depotfat and decreased the portion of the meat, valuable parts of the empty body. The chemical composition of the reproductive organs and the conception products as well as the portions of these fractions of the empty body were influenced strongly from the course of the gestation and lactation resp. The portions of the reproductive organs and of the conception products are small (related to energy < or = 5.7 and < or = 2.6% resp.)

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Untersuchungen zum energie‐ und stickstoffumsatz von graviden und laktierenden sauen sowie von saugferkeln

Cited by 7 publications

References 13 publications

Effects of dietary energy intake during gestation and lactation on milk yield and composition of first, second and fourth parity sows

Effects of dietary energy intake during gestation and lactation on milk yield and composition of first, second and fourth parity sows

Energy and amino acid requirements of gestating and lactating sows

Untersuchungen zum energie‐ und stickstoffumsatz von graviden und laktierenden sauen sowie von saugferkeln

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