Hormones, IgG and lactose changes around parturition in plasma, and colostrum or saliva of multiparous sows

221

158

Colostrum yield and composition of 40 Landrace3Large White sows were determined from the onset of parturition until 24 h post partum. Colostrum yield was calculated by adding individual piglets' colostrum intakes for each litter. Colostrum was assayed for prolactin, progesterone, oestradiol-17b, immunoglobulin G and its nutritional composition was determined. Piglets' individual colostrum intake averaged 300 6 7 g and sows' colostrum yield averaged 3.67 6 0.14 kg (minimum 1.91 kg, maximum 5.31 kg). Live weight and characteristics at birth (umbilical cord already ruptured, splayleg, difficulty to breathe) were the major factors influencing individual colostrum intake. Colostrum yield was not affected by litter size, tended to be influenced by parity (P 5 0.059) and was lower when farrowing was induced (P 5 0.017). On the other hand, no relationships were found between hormone concentrations in colostrum and colostrum yield. Mean piglet birth weight and litter weight variation at birth were related to colostrum yield (r 5 0.38; P 5 0.015 and r 5 20.34; P 5 0.030, respectively). These results suggest that determinism of colostrum yield depends, in part, on global vitality of the litter but seems to be, most probably, affected by the capacity of sows to produce enough colostrum for the whole litter. Further studies are needed to understand the endocrine regulation of colostrum secretion in sows.

Section: Figuresupporting

confidence: 92%

Section: Figurementioning

confidence: 98%

See 1 more Smart Citation

Variability of colostrum yield and colostrum intake in pigs

Devillers

Farmer²,

Dividich³

et al. 2007

221

158

“…The assay sensitivity was 1.9 ng/ml. The plasma samples collected at T 24 and at weaning and the colostrum samples were analyzed for IgG concentration using a previously described ELISA method (Devillers et al, 2004a) with a sensitivity of 23 ng/ml.…”

Section: Methodsmentioning

confidence: 99%

Influence of colostrum intake on piglet survival and immunity

Devillers

Dividich

Prunier

2011

226

154

Colostrum intake from birth to 24 h after the onset of parturition ( T 24 ) was estimated for 526 piglets from 40 litters. Plasma concentrations of immunoglobulin G (IgG), lactate, glucose and cortisol were determined at T 24 for six piglets per litter. Plasma IgG concentration was also assayed at weaning (28 days) on the same piglets. Rectal temperature was measured at T 24 on all piglets. Mortality was recorded until weaning and comparisons were made between piglets that died before weaning and those that were still alive at weaning. The piglets that died before weaning had lower birth weight, lower colostrum intake, lower weight gain between birth and T 24 , and had a lower rectal temperature, higher plasma cortisol concentration and lower plasma IgG and glucose concentrations at T 24 than piglets still alive at weaning. In addition, a higher proportion of piglets that died before weaning had difficulty taking their first breath after birth and were affected by splayleg. Considering all piglets, colostrum intake was positively related to rectal temperature and plasma glucose concentration and negatively related to plasma cortisol concentration at T 24 . Plasma IgG concentration at T 24 was explained by colostrum intake, IgG concentration in the ingested colostrum, birth weight and birth rank (P , 0.0001). Plasma IgG concentration at weaning was related to plasma IgG concentration at T 24 (r 5 0.54; P , 0.0001) and to colostrum intake (r 5 0.32; P , 0.0001). Finally, body weight was explained by colostrum intake, birth weight and age until 6 weeks of age (P , 0.0001). These results show that colostrum intake is the main determinant of piglet survival through provision of energy and immune protection and has potential long-term effects on piglet growth and immunity.

“…E100-104), according to an adaptation by I. Oswald (UR66 Pharmacologie-Toxicologie, INRA, Toulouse, France). The validated procedure was described by Devillers et al (2004a). Colostrum was diluted at 1/500 000 (t 0, t 3 and t 6 samples) or at 1/100 000 (t24 samples) and milk was diluted at 1/5000 (mid-lactation) and 1/2000 (late lactation).…”

Section: Biological Analysesmentioning

confidence: 99%

Effect of organic and inorganic selenium sources in sow diets on colostrum production and piglet response to a poor sanitary environment after weaning

Quesnel

Renaudin

Floc'H

et al. 2008

The objectives of this study were to determine the effect of the chemical form of selenium (Se) fed to sows (1) on production and immune quality of colostrum and (2) on piglet response to a deterioration of sanitary conditions after weaning. Twenty-two pregnant sows were assigned to receive a diet supplemented with 0.3 ppm Se from either sodium selenite (inorganic Se) or Se-enriched yeast (organic Se as Sel-Plex R ; Alltech Inc., Nicholasville, KY, USA). Dietary treatments were applied during the last month of pregnancy and lactation. Blood samples were collected on sows before dietary treatment, on the day of weaning and 6 weeks later, and on three to five piglets within litters at birth, at weaning and 6 weeks post weaning. Whole blood was analysed for Se concentration. Colostrum samples were collected at 0, 3, 6 and 24 h post partum and milk samples on days 14 and 27 of lactation. Colostrum and milk were analysed for Se and immunoglobulin G (IgG) concentrations. At weaning, 40 pairs of littermate piglets were moved to rooms where sanitary conditions were good or purposely deteriorated. Piglets were reared individually and fed ad libitum. After 15 days, piglets and feed refusals were weighed and a blood sample was collected to measure plasma haptoglobin concentration. When sows were fed organic Se, Se concentrations were increased by 33% in colostrum (P , 0.05), 89% in milk (P , 0.001) and by 28% in whole blood of piglets at weaning (P , 0.001). Colostrum production during the 24 h after the onset of farrowing and IgG concentrations in colostrum and milk did not significantly differ between the two groups of sows. Weaned piglets reared in good sanitary conditions grew faster (P , 0.001) than piglets housed in poor conditions. Sanitary conditions did not influence mean plasma haptoglobin concentrations of piglets (P . 0.1). The source of Se fed to the dams did not influence piglet performance or haptoglobin concentrations after weaning. These findings confirm that, compared with inorganic Se, organic Se fed to the dam is better transferred to colostrum and milk, and consequently to piglets. They indicate that the Se source influences neither colostrum production nor IgG concentrations in colostrum, and that the higher Se contents of piglets does not limit the reduction of growth performance when weaning occurs in experimentally deteriorated sanitary conditions.