Energy Metabolism During Late Gestation and Lactation in Muciparous Sows in Relation to Backfat Thickness and the Interval from Weaning to First Oestrus

Hultén, Fredrik; Neil, Maria; Einarsson, S.; Håkansson, Jan

doi:10.1186/bf03548218

Cited by 30 publications

(2 citation statements)

References 34 publications

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“…Both genes coding for primary milk proteins and neutral AA transporters in mammary tissue increased from late pregnancy to peak milk production (Chen et al, 2018). Sow will lose body weight during lactation because their tissues are catabolized for milk synthesis in mammary glands (Hultén et al, 1993). Compared with high CP concentration, N utilization improved and N output in urine reduced when lactating sows fed with low dietary CP levels supplemented crystalline AA (Pedersen et al, 2019).…”

Section: Discussionmentioning

confidence: 99%

Effect of Mulberry Leaf powder on reproductive performance, serum indexes and milk amino acid composition in lactating sows

Yang

Tang²,

Duan

et al. 2021

Animal Physiology Nutrition

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Experiment was conducted to study the effects of Mulberry Leaf (ML) powder on reproductive performance, serum and milk amino acid composition in sows. Fifty sows (D 85 at gestation) with parity 3 or 4 were randomly divided into 5 groups: C, M100, M200, M300 and M400, receiving 0, 100, 200, 300 and 400 g ML powder per sow per day. Blood and milk of sows at Days 1 and 21 of lactation were collected. Results showed that average daily feed intake (ADFI) during lactation was higher in groups supplemented ML compared with control group (p < 0.01). Litter weight gain during lactation was higher in M400 than in groups M200 and C (p < 0.05), with no significant difference compared with M100 and M300. Serum glucose concentration in groups M400 and M300 was higher than those in the other groups (p < 0.01). Serum HDL‐C concentration in group M400 was significantly greater than those in groups M100 and M200 (p < 0.05), with no significant difference between group M400 and groups M300, control. Milk amino acid concentrations such as isoleucine, leucine, lysine and valine were all lower in group M400 than in control (p < 0.01). Serum methionine (Met) concentration was higher in M300 than in other groups (p < 0.01). Milk Met concentration in group C was higher than those of the sows in the group M400, with no significant difference compared with groups M100, M200 and M300 (p < 0.05). Serum Lys and Met concentrations were lower in M400 than in control group (p < 0.05). In summary, our results have revealed the ML supplementation at a high dose such as 300 g/day during later gestation and lactation showed benefit in regulating lipid and amino acid metabolism in sows and then improved growth performance of their offspring.

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Section: Discussionmentioning

confidence: 99%

Effect of Mulberry Leaf powder on reproductive performance, serum indexes and milk amino acid composition in lactating sows

Yang

Tang²,

Duan

et al. 2021

Animal Physiology Nutrition

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“…The level of NEFA increases at the end of gestation and it is the highest in the middle and at the end of lactation. Their concentration is used mostly as a measure of energy status post-parturition and catabolism of fats in sows (Hulten et al, 1993).…”

Section: Metabolic Changes In Sows From the Prepartal Period To Weaningmentioning

confidence: 99%

Behaviour of Sows and Pigs in a Course of the Lactation Period

Joksimovic-Todorovic¹,

Hristov²,

Davidović³

2011

mjas

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Physiological conditon activating maternal behaviour is very complex, because it is caused by changes in endocrinic and nervous systems. Sows are different from other mammals, so that sows bear a large number of mature babies, capable of suckling immediately. The begining of suckling is initiated by the sow. By squealing the sow calls the pigs, which by tactile excitation of teats lead to secretion of milk. During the gestation the sow is increasing the body reserves to accommodate the production of milk post partum. Post partum anabolic processes become catabolic, giving priority to the dairy gland in relation to other tissues. The levels of catabolic processes during lactation depend on the dietary value of secretion. Maximum secreted milk takes place betwen the 2 nd. And the 3 nd. week. Sows lose in the body mass and it causes chauges in the value of some blood parameters. The level of glucose in plasma is low (it is decreasing for more than 50%), while the level of urea is high, due to huge proteins available. It can also be noticed that there is a high mobilisation of the body fat, an increasing level of the NEFA (non-esterified fatty acid). Secretion of milk is under control prolactin and oxytocin. Oxytocin affects the maternal behaviour and prolactin is linked with suck timing. Sows have necessity to be devoted mothers. They maintain regular suckling in order to reduce cross-suckling (pigs suckling other sows).

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Ad libitum feeding during the peripartal period affects body condition, reproduction results and metabolism of sows

Cools

Maes

Decaluwé

et al. 2014

Animal Reproduction Science

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Energy Metabolism During Late Gestation and Lactation in Muciparous Sows in Relation to Backfat Thickness and the Interval from Weaning to First Oestrus

Cited by 30 publications

References 34 publications

Effect of Mulberry Leaf powder on reproductive performance, serum indexes and milk amino acid composition in lactating sows

Effect of Mulberry Leaf powder on reproductive performance, serum indexes and milk amino acid composition in lactating sows

Behaviour of Sows and Pigs in a Course of the Lactation Period

Ad libitum feeding during the peripartal period affects body condition, reproduction results and metabolism of sows

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