Effects of post-ovulatory food deprivation on oviductal sperm concentration, embryo development and hormonal profiles in the pig

Mburu, J.N.; Einarsson, S.; Kindahl, H.; Madej, Andrzej; Rodriguez‐Martinez, Heriberto

doi:10.1016/s0378-4320(98)00103-1

Cited by 32 publications

(20 citation statements)

References 46 publications

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“…However, the time of the prostaglandin F 2α metabolite peak was earlier (46 min) than that of cortisol (80 min), suggesting that prostaglandin F 2α is released or metabolized earlier than cortisol. Prostaglandin F 2α metabolite levels have been shown to be elevated in fasted prepubertal gilts (Holst and Kindahl, 1995), early pregnant sows (Mburu et al, 1998), and pregnant sows on days 10 and 11 (Tsuma et al, 1996). It has been suggested (Silver and Fowden, 1982) that increases in the levels of prostaglandin F 2α could be a result of increased free fatty acids, including arachidonic acid a precursor of prostaglandin synthesis.…”

Section: Discussionmentioning

confidence: 99%

Plasma Levels of Cortisol, Progesterone, Oestradiol‐17β and Prostaglandin F_2α Metabolite After ACTH (Synacthen Depot®) Administration in Ovariectomized Gilts

Mwanza

Madej²,

Kindahl³

et al. 2000

Journal of Veterinary Medicine Series A

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In order to elucidate the effect of stress on reproductive hormones, the present study was designed to investigate the effect of adrenocorticotropic hormone (ACTH) on the plasma levels of cortisol, progesterone, oestradiol-17 beta and prostaglandin F2 alpha metabolite in ovariectomized gilts. Ovariectomy and cannulation of the jugular vein were performed within 1 week of oestrous detection, under general anaesthesia. Approximately 1 week after surgery, two gilts were each administered ACTH (Synacthen Depot) intravenously, at a dose of 0.01 mg/kg body weight, and one gilt was given saline solution (5 ml). The reverse was performed on the following day. The administration of ACTH was followed by a concomitant elevation of cortisol, progesterone and prostaglandin F2 alpha metabolite but not of oestradiol-17 beta. Peak cortisol, progesterone and prostaglandin F2 alpha metabolite levels were reached at 80 +/- 10.0, 80 +/- 10.0 and 46.6 +/- 13.3 min after ACTH administration and the durations of the peaks were 181.8 +/- 19.8, 308.1 +/- 49.7 and 181.8 +/- 7.9 min, respectively. The total area under the curve for cortisol, progesterone and prostaglandin F2 alpha metabolite was significantly higher in the ACTH than in the control group. The present results indicate that during stress, cortisol, progesterone and prostaglandin F2 alpha levels are elevated while the level of oestradiol-17 beta is less affected. It can be concluded that the administration of ACTH to ovariectomized gilts, results in the elevation of cortisol, progesterone and prostaglandin F2 alpha metabolite but not of oestradiol-17 beta.

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Section: Discussionmentioning

confidence: 99%

Plasma Levels of Cortisol, Progesterone, Oestradiol‐17β and Prostaglandin F_2α Metabolite After ACTH (Synacthen Depot®) Administration in Ovariectomized Gilts

Mwanza

Madej²,

Kindahl³

et al. 2000

Journal of Veterinary Medicine Series A

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“…There were also lower cleavage rate of the embryos and fewer viable spermatozoa in the reservoir (Mburu et al, 1998). It is interesting to notice that post-ovulatory food deprivation was associated with an altered activity of the oviduct and delay of ova transport (Mwanza et al, 2000a;Razdan et al, 2001) whereas repeated administration of ACTH had no such effects (Mwanza et al, 2000c;Razdan et al, 2002).…”

Section: Simulated Stress Before and After Ovulationmentioning

confidence: 98%

Stress-related effects on reproductive capacity of pigs

Madej

Madsen²,

Brandt

et al. 2005

J. Anim. Feed Sci.

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Due to increased attention to welfare and changes in European legislation group-housing systems are becoming more used in several countries. Even though systems involving grouphousing of sows are in many ways very appealing, the effects of high stress levels during a short but critical phase of the reproductive cycle, e.g., resumption of ovarian activity, oestrus and ovulation, are yet to be clarified. The aim of the presentation is to review the research focusing on the possible factors, which may impair the reproductive processes of the pig.

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“…16,17 Despite an established hierarchy, aggression may still occur, especially during feeding, with higher-ranked sows displacing lower-ranked sows, thus resulting in sows that are either too thin or too fat. 18,19 Moreover, food deprivation leads to an increase in cortisol and if prolonged, animals can lose body weight, experience reproductive failure, [20][21][22] and affect embryonic development (i.e. decrease embryonic cleavage rate).…”

Section: Aggression Welfare Concernmentioning

confidence: 99%

A Review: Aggression Concerns with Group-Housed Sow Well-Being

Salak‐Johnson¹

2016

JDVAR

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The global trend toward housing gestating sows in group-pens is primarily driven by welfare concerns associated with the use of individual gestation stalls. Despite transition toward group-housing systems, no housing system has scientifically been identified as being better than another based on current notions of sow wellbeing. Both benefits and drawbacks are associated with housing gestating sows either individually or in groups. The main concern associated with group-housing is increased sow aggression that occurs at mixing and around limited resources, including feed and water. Aggression is inevitable and unavoidable upon mixing of unfamiliar sows, but is necessary for establishment of social hierarchy, which helps reduce overall aggression and tension among the group. Unfortunately, if aggression is intense and prolonged it may lead to stress and compromised sow well-being. With few differences in sow well-being identified between gestation housing systems, it seems plausible that the consequences on sow well-being is not only about the stall or the pen the sow is confined to, but the interactive effects of other housing components. In pens, some of the most critical factors to consider include space allowance, group size, time of mixing, and feeding systems/strategies which may directly or indirectly affect various welfare metrics (e.g., lesion scores, aggressive behavior, reproduction). It is imperative to minimize aggression among grouped sows and feeding and management strategies are viable options that can be used to reduce aggression among grouphoused sows, but not eliminate aggressive encounters. Therefore, the focus of this review is to examine the different feeding and management strategies that can be used to mitigate the drawbacks of grouping housing sows, while improving performance, productivity, and well-being.

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Effects of post-ovulatory food deprivation on oviductal sperm concentration, embryo development and hormonal profiles in the pig

Cited by 32 publications

References 46 publications

Plasma Levels of Cortisol, Progesterone, Oestradiol‐17β and Prostaglandin F_2α Metabolite After ACTH (Synacthen Depot®) Administration in Ovariectomized Gilts

Plasma Levels of Cortisol, Progesterone, Oestradiol‐17β and Prostaglandin F_2α Metabolite After ACTH (Synacthen Depot®) Administration in Ovariectomized Gilts

Stress-related effects on reproductive capacity of pigs

A Review: Aggression Concerns with Group-Housed Sow Well-Being

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Effects of post-ovulatory food deprivation on oviductal sperm concentration, embryo development and hormonal profiles in the pig

Cited by 32 publications

References 46 publications

Plasma Levels of Cortisol, Progesterone, Oestradiol‐17β and Prostaglandin F2α Metabolite After ACTH (Synacthen Depot®) Administration in Ovariectomized Gilts

Plasma Levels of Cortisol, Progesterone, Oestradiol‐17β and Prostaglandin F2α Metabolite After ACTH (Synacthen Depot®) Administration in Ovariectomized Gilts

Stress-related effects on reproductive capacity of pigs

A Review: Aggression Concerns with Group-Housed Sow Well-Being

Contact Info

Product

Resources

About

Plasma Levels of Cortisol, Progesterone, Oestradiol‐17β and Prostaglandin F_2α Metabolite After ACTH (Synacthen Depot®) Administration in Ovariectomized Gilts

Plasma Levels of Cortisol, Progesterone, Oestradiol‐17β and Prostaglandin F_2α Metabolite After ACTH (Synacthen Depot®) Administration in Ovariectomized Gilts