Compensatory feeding during early gestation for sows with a high weight loss after a summer lactation increased piglet birth weight but reduced litter size

Liu, Fan; Braden, C.; Smits, R. J.; Craig, J.R.; Henman, D. J.; Brewster, C.J.; Morrison, Rebecca; Athorn, R. Z.; Leury, B. J.; Zhao, Weicheng; Cottrell, Jeremy J.; Dunshea, Frank R.; Bell, A. W.

doi:10.1093/jas/skab228

Cited by 3 publications

(2 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Table 8 lists the main conclusions of some studies on the effect of light time on milk yield and weight loss of multiparous sows. The results showed that there was no significant difference in prolactin concentration, milk composition and colostrum intake of multiparous sows under the light time of 8, 16 and 23 h during lactation, but their feed intake and weight loss were reduced under the light time of 16 and 23 h (Dimitrov et al, 2018; Lachance et al, 2010; Liu, Braden, et al, 2021; Liu, Song, et al, 2021; Mabry et al, 1982). Meanwhile, the lactation number of multiparous sows, as well as the number and weight of weaned piglets under 16 h light were more than those under 8 h light (Kraeling et al, 1987; McGlone, Stansbury, & Tribble, 1988; McGlone, Stansbury, Tribble, & Morrow, 1988; Sevillano et al, 2016).…”

Section: Resultsmentioning

confidence: 99%

“…In recent years, some scholars found that precise feeding can partially improve the feed intake, physiological indexes and reproductive performance of lactating sows under heat stress, and their main conclusions are shown in Table 5. According to Table 5, compared with the standard gestation feeding regime (2.6 kg/day), the weight loss of lactating sows during lactation and their back‐fat thickness loss were reduced under high temperature when the gestation feeding regime with 3.5–4.3 kg/day was adopted during their early pregnancy (Carrión‐López et al, 2022; Gianluppi et al, 2020; Liu, Braden, et al, 2021). However, there was no significant difference in their litter size and foetal viability rate (Carrión‐López et al, 2022; Gianluppi et al, 2020).…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

A review on the effect of light–thermal–humidity environment in sow houses on sow reproduction and welfare

Xie

et al. 2023

Reprod Domestic Animals

View full text Add to dashboard Cite

The environment in sow houses is the key to restrict sow production due to its significant effect on sow growth and reproduction. In this article, the effect of light, thermal and light–thermal–humidity environment in sow houses is systematically reviewed for sow reproduction and welfare according to the existing literature. The results show the optimal ambient temperature range for sows is approximately 16–22°C, as well as the lowest and highest critical temperature are 16 and 27°C respectively. Meanwhile, the increase of relative humidity from 50% to 70% is equivalent to the increase of effective temperature by 0.9°C in sow houses. In addition, the evaluation indexes are summarized to the future research direction is proposed according to the reviewed results. It can be concluded that the current research mainly focuses on the effect mechanism of light–thermal–humidity environment on sow growth and reproductive performance, as well as the optimal regulation range of light–thermal–humidity environment. In particular, it is a popular topic to further study the effect of light–thermal–humidity environment on the genetic material of sows, as well as metabolic parameters and body composition of their offspring. The above conclusions can contribute to guiding the regulation of light–thermal–humidity environment in sow houses and improving the sow welfare.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

A review on the effect of light–thermal–humidity environment in sow houses on sow reproduction and welfare

Xie

et al. 2023

Reprod Domestic Animals

View full text Add to dashboard Cite

show abstract

Review: What have we learned about the effects of heat stress on the pig industry?

Liu¹,

Zhao

et al. 2022

animal

View full text Add to dashboard Cite

Does the relationship between sow body composition change in lactation and re-breeding success still exist?

Muller

Hewitt²,

Plush³

et al. 2022

Anim. Prod. Sci.

View full text Add to dashboard Cite

Sow body composition largely reflects the amount of lean and fat tissue stores in the body, and is measured, managed and reported because traditionally when sows mobilise body tissues in lactation to support piglet growth, adverse consequences in subsequent reproduction may be observed. These consequences are largely driven by metabolic changes exerting negative influences on the reproductive axes through luteinising hormone and follicle stimulating hormone and direct impact on the ovary. This results in sows that take longer to ovulate, have lower ovulation rates and shed poorer-quality oocytes, translating to delayed wean to service intervals, higher pregnancy failure and lower litter sizes. Sow management needs to meet both the needs of the piglet (adequate colostrum and milk intake for survival and growth) and the needs of the sow (successful re-breeding). The way pork producers tackle this is through diets designed to match sow requirements at different production stages. We have recently observed, despite efforts (nutritional challenges), that we are unable to induce fat or lean tissue mobilisation in lactating sows, which is a novel finding, although pig populations such as in the EU, UK and USA would appear to be experiencing similar outcomes. Despite our lower reproductive performance than in much of the rest of the world as a consequence of having a closed genetic herd, the specific genetic selection programs that exist within Australia, and the resultant leaner, more efficient sows, may be a potential explanation. This, coupled with the high lactation feed intakes now commonly reported, means that sows are less likely to become catabolic and so suffer from poor re-breeding outcomes. A conclusion from these findings may mean that we now have an opportunity to feed the lactating sow to better meet the growth and survival needs of piglets, with the knowledge that we will not compromise subsequent reproduction.

show abstract

Compensatory feeding during early gestation for sows with a high weight loss after a summer lactation increased piglet birth weight but reduced litter size

Cited by 3 publications

References 36 publications

A review on the effect of light–thermal–humidity environment in sow houses on sow reproduction and welfare

A review on the effect of light–thermal–humidity environment in sow houses on sow reproduction and welfare

Review: What have we learned about the effects of heat stress on the pig industry?

Does the relationship between sow body composition change in lactation and re-breeding success still exist?

Contact Info

Product

Resources

About