Effect of Dietary Protein Level on Composition Changes in Sow Colostrum and Milk2

Elliott, R. F.; Noot, G. W. Vander; Gilbreath, Rex L.; Fisher, Hans

doi:10.2527/jas1971.3261128x

Cited by 80 publications

(47 citation statements)

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“…Similar results were reported by Dourmad et al in primiparous lactating sows when dietary crude protein (CP) level was reduced from 17.1 to 15.5% without change in lysine concentration (0.77%) [7]. For a more severe restriction of dietary CP (15 to 5% and 23.8 to 6.3%, respectively), Elliott et al and King et al showed reduced fat and protein milk contents in low CP treatment [20,21]. In these latter studies, the milk AA composition expressed as a proportion of nitrogen content was slightly affected by protein supply.…”

Section: Resultssupporting

confidence: 77%

“…From these results, it can be suggested that changes in AA pattern during lactation could be explained by the presence to some extent of immune proteins in mature milk produced after the colostrum stage. On average lysine milk content concentration was not affected by stage of lactation (P>0.05) and averaged 7.24 g/ 16 g N; this value is rather similar to the levels reported by Elliott et al, King et al, and Dourmad et al (7.30, 6.95, and 7.39 g lysine / 16 g N, respectively) [7,20,21].…”

Section: Citationsupporting

confidence: 76%

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Effects of Dietary Protein Content on Milk Composition of Mixed Parity Lactating Sows in a Tropical Humid Climate

Ban¹,

Gourdine²,

Corrent³

et al. 2017

J Vet Sci Technol

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Eighteen multiparous Large White sows were used to determine the effects of dietary protein content and lactation stage on milk composition during a 28-d lactation under humid tropical climatic conditions. This study was conducted at the INRA facilities in Guadeloupe, French West Indies (latitude 16°N, longitude 61°W). The average minimum and maximum ambient temperatures and average daily relative humidity during the trial were 22.7 and 29.4°C, and 93.7%, respectively. The dietary experimental treatments were a normal protein (NP, 17.3%) diet and a low protein (LP, 14.1%) diet supplemented with essential amino acids. The ADFI tended to be higher for the sows fed the LP diets when compared with the NP treatment (i.e., +9%, P<0.10). Litter BW gain and mean BW of piglets at weaning were not affected by dietary protein level (P>0.10). The treatments did not influence (P>0.10) sow body weight loss during lactation. The sows fed LP diets tended to show lower backfat thickness losses when compared to the sows fed NP diets (2.4 vs. 6.3 mm, respectively; P<0.10). Milk production and composition were not affected by dietary treatments (P>0.10). Milk dry matter and ash contents linearly increased according to lactation stage (17.6 to 19.9%, and 0.72 vs. 97%, respectively from d 7 to d 27; P<0.01). Lactose content increased from d 7 to d 14 (3.95 vs. 4.91; P<0.01) and thereafter remained constant. Fat content did not change during lactation and averaged 7.5%. The amino acid concentrations in milk protein were affected by the lactation stage: methionine, threonine, tryptophan, valine, and alanine concentrations decreased (P<0.05) but glycine and glutamic acid contents increased (P<0.05) from d 7 to d 27. Fatty acids milk profile was not influenced (P>0.10) by lactation stage. Maternal BW loss during lactation was negatively correlated with the average daily feed intake (r=-0.76; P<0.05) and positively correlated with backfat thickness loss (r=0.55; P<0.05). A positive correlation between milk production and body reserves mobilisation (r=0.82; P<0.05) was also observed. Polyunsaturated fatty acid content in milk fat was positively correlated with ADFI and negatively correlated to maternal BW loss (r=0.62 and r=-0.60; P<0.05). In conclusion, reducing dietary protein content can be an alternative to attenuate the negative effects of heat stress by increasing ADFI. Milk composition changes significantly according to lactation stage and the ability of sows to produce milk will depend on their capacity to mobilize body reserve for providing milk precursors.Keywords: Sow; Lactation; Milk; Amino acids; Fatty acids ImplicationsHeat stress is a constant problem in many tropical and subtropical areas. Under heat stress, sows reduce their appetite in order to reduce their metabolic heat production due to the thermic effect of feed. This reduced feed intake has negative consequences on body reserves mobilization and milk yield and composition. The way the sow's milk composition and production is affected by heat stress implicates...

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Section: Resultssupporting

confidence: 77%

Section: Citationsupporting

confidence: 76%

Effects of Dietary Protein Content on Milk Composition of Mixed Parity Lactating Sows in a Tropical Humid Climate

Ban¹,

Gourdine²,

Corrent³

et al. 2017

J Vet Sci Technol

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“…The energy concentration of the milk has also been reported to vary very little during lactation (Pomar et al, 1991), although Noblet and Etienne (1986) detected a slight reduction after the fifth day of lactation. The average total content of the 15 considered amino acids of sow milk (78.9 g/100 g protein) was lower than those found by Elliot et al (1971), Duée and Jung (1973) and Dourmad et al (1991) (89.4, 92.1 and 90.6 g/100g protein, respectively), but was similar to that reported by King et al (1993a) (83.8 g/100g protein) and higher than that observed by Davis et al (1994) (35 g l -1 of milk including proline and cystine). In our experiment the lysine average content of sow milk was 6.56 g/100g protein.…”

Section: Introductionmentioning

confidence: 49%

“…In our experiment the lysine average content of sow milk was 6.56 g/100g protein. Higher values of lysine were found by Elliot et al (1971), Duée and Jung (1973), Dourmad et al (1991) and King et al (1993a) (7.1, 7.59, 7.24 and 6.95 g/100 g milk protein, respectively). However, the concentration of the other amino acids studied, when expressed as a proportion of lysine content, were similar to those attained by the same authors.…”

Section: Introductionmentioning

confidence: 79%

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Short communication. Changes in the composition of sows milk between days 5 to 26 of lactation

Daza

Riopérez

Centeno³

2004

Span. j. agric. res.

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Ten Large White x Landrace sows were used to measure changes during lactation of composition of the milk. Milk composition on day 5, 12, 19 and 26 of lactation included 195.7, 192.2, 185.4 and 184.1 g of dry matter kg-1, 59.3, 55.8, 55.1 and 54.8 g of crude protein kg-1 and 1.3, 1.18, 1.16 and 1.17 Mcal of gross energy kg-1, respectively. Dry matter, crude protein and gross energy levels in the milk did not vary significantly with stage of lactation. Amino acids average total (except tryptophan, proline and cystine) and lysine average contents of sows milk on day 5, 12, 19, and 26 after parturition were 73.5, 77.6, 82.7 and 81.8 g/100 g milk protein and 5.97, 6.41, 7.05 and 6.81 g/100 g milk protein, respectively. All studied amino acids with some exceptions (methionine, threonine, histidine and glycine) varied significantly (P

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Sow Milk

Park¹

2006

Handbook of Milk of Non‐Bovine Mammals

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Effect of Dietary Protein Level on Composition Changes in Sow Colostrum and Milk2

Cited by 80 publications

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Effects of Dietary Protein Content on Milk Composition of Mixed Parity Lactating Sows in a Tropical Humid Climate

Effects of Dietary Protein Content on Milk Composition of Mixed Parity Lactating Sows in a Tropical Humid Climate

Short communication. Changes in the composition of sows milk between days 5 to 26 of lactation

Sow Milk

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Effect of Dietary Protein Level on Composition Changes in Sow Colostrum and Milk2

Cited by 80 publications

References 0 publications

Effects of Dietary Protein Content on Milk Composition of Mixed Parity Lactating Sows in a Tropical Humid Climate

Effects of Dietary Protein Content on Milk Composition of Mixed Parity Lactating Sows in a Tropical Humid Climate

Short communication. Changes in the composition of sows milk between days 5 to 26 of lactation

Sow Milk

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Short communication. Changes in the composition of sows milk between days 5 to 26 of lactation