Sow body condition at weaning and reproduction performance in organic piglet production

Kongsted, Anne Grete; Hermansen, John E.

doi:10.1080/09064700903071768

Cited by 7 publications

(9 citation statements)

References 26 publications

(26 reference statements)

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“…During lactation, sows mobilize their body reserves to support milk synthesis, which generally leads to body loss at weaning [20]. Sow body condition at weaning is known to be closely associated with its reproductive performance as a good body condition plays a vital role in maintaining a good reproductive performance, while in contrast, a poor body condition has adverse impacts on the subsequent reproduction performance by prolonging weaning-estrous interval and decreasing litter sizes [21]. In the present study, sows fed SBP showed lower lactation weight loss than those fed CON, suggesting a better body condition.…”

Section: Discussionmentioning

confidence: 99%

Impact of sugar beet pulp and wheat bran on serum biochemical profile, inflammatory responses and gut microbiota in sows during late gestation and lactation

Shang

Liu

et al. 2020

Preprint

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Background: Sows are frequently subjected to various stresses during late gestation and lactation, which trigger inflammatory response and metabolic disorders. Dietary fiber can influence animal health by modulating gut microbiota and their by-products, with the effects depending upon the source of the dietary fiber. This study aimed to evaluate the impacts of different fiber sources on body condition, serum biochemical parameters, inflammatory responses and fecal microbiota in sows from late gestation to lactation.Methods: Forty-five multiparous sows (Yorkshire × Landrace; 3-6 parity) were assigned to 1 of 3 dietary treatments from d 85 of gestation to the end of lactation (d 21 post-farrowing): a control diet (CON, a corn-soybean meal diet), a sugar beet pulp diet (SBP, 20% SBP during gestation and 10% SBP during lactation), and a wheat bran diet (WB, 30% WB during gestation and 15% WB during lactation).Results: Compared with CON, supplementation of SBP decreased (P < 0.05) lactation BW loss, reduced (P < 0.05) serum concentration of total cholesterol, non-esterified fatty acids, interleukin-6 and tumor necrosis factor-α, and increased (P < 0.05) fecal water content on d 110 of gestation and d 21 of lactation, while supplementation of WB reduced (P < 0.05) serum concentration of total cholesterol on d 110 of gestation, increased (P < 0.05) fecal water content and decreased (P < 0.05) serum interleukin-6 concentration on d 110 of gestation and d 21 of lactation. In addition, sows fed SBP had lower (P < 0.01) abundance of Clostridium_sensu_stricto_1 and Terrisporobacter than those fed CON, but had greater (P < 0.05) abundance of Christensenellaceae_R-7_group and Ruminococcaceae_UCG-002 than those fed the other two diets on d 110 of gestation. On d 21 of lactation, supplementation of SBP decreased (P < 0.05) the abundance of Firmicutes and Lactobacillus, but enriched (P < 0.05) the abundance of Christensenellaceae_R-7_group, Prevotellaceae_NK3B31_group, Ruminococcaceae_UCG-002, Prevotellaceae_UCG_001 and unclassified_f__Lachnospiraceae compared with WB. Compared with CON, sows fed SBP had greater (P < 0.05) fecal concentrations of acetate, butyrate and total SCFAs during gestation and lactation, while sows fed WB only had greater (P < 0.05) fecal concentration of butyrate during lactation.Conclusions: Supplementation of dietary fiber during late gestation and lactation could improve sow metabolism and gut health, and SBP was more effective than WB.

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Section: Discussionmentioning

confidence: 99%

Impact of sugar beet pulp and wheat bran on serum biochemical profile, inflammatory responses and gut microbiota in sows during late gestation and lactation

Shang

Liu

et al. 2020

Preprint

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“…The pregnancy rate of 84% 4 to 5 wk after estrus is greater than previously reported [16] but comparable with another study [8] based on induction of estrus during lactation and unsupervised services by a boar. The result is slightly less than the farrowing rates reported in organic [19] and conventional [20] sow herds mainly using artificial insemination. The behavioral observations revealed that most of the sows showed behavioral estrus but that the two boars differed in willingness to court and attempt intromission.…”

Section: Discussionmentioning

confidence: 57%

“…The experimental sows were (Danish Landrace Â Danish Yorkshire) Â Duroc crossbreeds. Crosses with Duroc are known for a greater appetite during lactation [28] and greater back fat at weaning [19] compared with that of Landrace Â Yorkshire crosses.…”

Section: Discussionmentioning

confidence: 99%

“…It has been speculated that a long lactation period may compromise the welfare of the sow due to large weight losses. However, a recent study showed that it is possible to increase lactation length to 10 wk under practical husbandry conditions without jeopardizing the welfare of the sows [19]. An increased weaning age closer to ''nature'' does not only comply better with the principles of organic livestock production [30] but also seems to have a positive impact on the productivity of the piglets.…”

Section: Discussionmentioning

confidence: 99%

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Induction of lactational estrus in organic piglet production

Kongsted

Hermansen

2009

Theriogenology

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The longer lactation period required in organic piglet producing herds reduces the potential number of produced litters per sow per year compared with that of conventional production. Induction and use of lactational estrus may be a way to increase the productivity in organic production. However, if lactational estrus is to be beneficial under practical husbandry conditions, it is crucial that the majority of sows are successfully mated within a few days to make batch farrowing procedures possible. The objective of this study was to investigate the occurrence and timing of lactational estrus in an organic outdoor system based on ad libitum feeding, individual housing until Day 35 in lactation, followed by grouping and introduction of a boar and weaning of piglets after 8 wk. Five groups with four sows ((Danish Yorkshire Â Danish Landrace) Â Danish Duroc) in each were observed, and rank was determined by a food competition test. All sows showed lactational estrus, and 84% of these sows showed estrus within 1 wk, on average 43.5 d and 7.3 d after farrowing and boar introduction, respectively. The number of days from boar introduction to estrus increased significantly with increasing feed competition rank (the lowest number being the top rank position). Eighty-four percent of all sows were diagnosed pregnant 5 wk after estrus. Behavioral observations revealed that the average total number of copulations per estrus sow was 2.3 with a range of 0 to 5 copulations. The findings of the current study indicate that it is possible to combine lactational estrus and batch farrowing procedures to increase the number of weaned piglets per year per sow in organic piglet production based on 8 wk of lactation or more. #

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“…Further, traditional breeds have been associated with a higher proportion of red muscle fibres, which may improve the eating quality of the pork in terms of flavour and tenderness 5. In Denmark, the most common breeds in organic production are crossbreeds of Duroc and the highly specialized and fast‐growing white breeds Landrace and Yorkshire 6. Traditional breeds are almost non‐existent in the Danish pig production of today.…”

Section: Introductionmentioning

confidence: 99%

Effect of breed on performance and meat quality of first parity sows in a seasonal organic rearing system

et al. 2011

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Sow body condition at weaning and reproduction performance in organic piglet production

Cited by 7 publications

References 26 publications

Impact of sugar beet pulp and wheat bran on serum biochemical profile, inflammatory responses and gut microbiota in sows during late gestation and lactation

Impact of sugar beet pulp and wheat bran on serum biochemical profile, inflammatory responses and gut microbiota in sows during late gestation and lactation

Induction of lactational estrus in organic piglet production

Effect of breed on performance and meat quality of first parity sows in a seasonal organic rearing system

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