Relationships among steroid hormone levels in newborn piglets, birth weight, placental weight, vitality of offspring and litter size

Ohtaki, Tadatoshi; Moriyoshi, Masaharu; Nakada, Ken; Nakao, Toshihiko; Sawamukai, Yutaka

doi:10.1111/j.1740-0929.2012.01012.x

Cited by 4 publications

(3 citation statements)

References 19 publications

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“…These hormones initiated the histological changes in the uterus in preparation for implantation and the growth and development of uterus and embryo in the beginning of pregnancy followed by the growth and development of fetus and the placenta until parturition [4,5,6,7]. Low uterus and placental growth will limit the growth and development of embryo and fetus and finally decreases birth weight and neonatal vitality [8].…”

Section: Introductionmentioning

confidence: 99%

Production of Superior Pigs as Breeding Stocks by Improving Maternal Uterus and Placental Environment during Pregnancy

Rayer,

Manoppo

2023

Advances in Science and Technology

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An experiment was conducted to study the inheritance of improved growth phenotypes in pigs born to sows injected with pregnant mare serum gonadotropin (PMSG) and human chorionic gonadotropin (HCG) prior to mating. Twelve sows were assigned into a randomized design with 3 groups and each group consisted of 4 sows as replications. The first group consisted of sows without PMSG and HCG injection prior to mating as a control group (NSO). The second group consisted of sows injected with PMSG and HCG prior to mating to improve endogenous secretion of pregnant hormones that improve prenatal growth of the piglets (SO). The third group consisted of female pigs born to PMSG and HCG-injected mother in SO group that were mated after maturity without PMSG and HCG injection (F1SO). The number of sows used in each group consisted of 2 sows with 11 litter size and 2 sows with 12 litter size at parturition and total of born pigs observed in this study was 138 pigs. The results of experiment showed that injection of the sows with PMSG and HCG prior to mating improved body weight, body length and leg heights and decreased within-litter variation that finally increased total weight of live born pigs per sow. Sows injected with PMSG and HCG prior to mating produced pigs with higher pre-weaning growth rate and higher survival rate with a higher weaning weight and total weaned pigs per sow. The female pigs born to SO sows produced piglets with similar growth phenotypes as their mothers that was significantly higher and better that the growth phenotypes of the pigs born to NSO sows. The results of this experiment strongly confirm that the improvement of uterine and placental environment by improving endogenous secretion of pregnant hormones during pre-implantation and during the whole pregnancy by injecting the mothers with PMSG and HCG prior to mating improve prenatal and postnatal growth phenotypes of pigsand the improved growth phenotypes are inherited to their offspring. It was concluded that this simple and relatively cheap technique could be used to improve growth genotype expression to produce a superior pigs either as a finisher or as a parent stock.

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Section: Introductionmentioning

confidence: 99%

Production of Superior Pigs as Breeding Stocks by Improving Maternal Uterus and Placental Environment during Pregnancy

Rayer,

Manoppo

2023

Advances in Science and Technology

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“…Since the 1990s, researchers have been interested in placental weight (PW), and have reported associations between PW and perinatal outcomes [ 1 , 2 ] and the development of diseases in adult life [ 3 ]. Eutherian (placental) mammals show a close relationship between PW and fetal growth, and the full-term birth weight (BW) of humans, pigs and goats is approximately five times the PW [ 4 – 6 ]. Human PWs and full-term BWs vary by more than 15% between different races or countries [ 4 , 7 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

Relationship between birth weight to placental weight ratio and major congenital anomalies in Japan

2018

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Recent studies have indicated that birth weight to placental weight (BW/PW) ratio is related to perinatal outcomes, but the effect of congenital abnormalities on BW/PW ratio remains unclear. We performed this study to elucidate correlations between BW/PW ratio and congenital abnormalities. Subjects were 735 singleton infants born at 34–41 weeks of gestation admitted to our center between 2010 and 2016. Of these, 109 infants (15%) showed major congenital anomalies. Major congenital anomalies and subgroups were diagnosed according to European Surveillance of Congenital Anomalies criteria. The primary outcome was the association between BW/PW ratio and major congenital anomaly, and secondary outcomes were the distribution pattern of BW/PW ratio with major anomalies and by major anomaly subgroups in each categorization (<10th percentile, 10–90th percentile, or >90th percentile) of BW/PW ratio. BW/PW ratio was not associated (P = 0.20) with presence (adjusted mean BWPW ratio = 5.02, 95% confidence interval [CI] 4.87–5.18) or absence (adjusted mean BW/PW ratio = 4.91, 95%CI 4.85–4.97) of major anomalies, after adjusting for gestational age and sex. Proportions of infants with major anomalies according to BW/PW ratio categories were as follows: 12% in <10th percentile, 15% in 10–90th percentile, and 25% in >90th percentile of BW/PW ratio. Among major anomalies of the nervous system, congenital heart defects, and orofacial clefts, BW/PW ratio showed equally distributed trend across the three BW/PW ratio categories, but showed unequally distributed trend for anomalies of the digestive system, other anomalies/syndromes, or chromosomal abnormalities. BW/PW ratio was not associated with major congenital anomaly, and was distributed diffusely according to major anomaly subgroups. Major anomalies may tend to aggregate in the 90th percentile of the BW/PW ratio.

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“…These hormones initiated the histological changes in the uterus in preparation for implantation and the growth and development of uterus and embryo in the beginning of pregnancy followed by the growth and development of fetus and the placenta until parturition (Gray et al, 2001;Bazer, 2004, 2002;. Low uterus and placental growth will limit the growth and development of embryo and fetus and finally decreases birth weight and neonatal vitality (Ohtaki et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Production of Superior Pigs by Injecting the Sows with Gonadotropin Prior to Mating

Rayer

Maheswari²,

Muladno³

et al. 2015

anprod

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Abstract. An experiment was conducted to produce superior pigs with improved growth phenotypes and survival during postnatal growth by injecting the sows with gonadotropin prior to mating. The experiment consisted of 2 stages. In the first stage, 12 sows were divided into 2 groups i.e., sows injected with NaCl0.95% as a control (NSO) and sows injected with PG600 (SO) prior to mating. Parameters measured were growth phenotypes and survival at birth and during pre-weaning period. In the second stage, 24 of weaned pigs (age 8 weeks) from the first stage were selected (6 males and 6 females from NSO group and 6 males and 6 females from SO group) to be used for measurement of growth performance. The experimental pigs were raised and observed until the age of 28 weeks (7 month). The body weights were measured monthly. The results of the experiment showed that improvement of uterine environment by gonadotropin injection of the sows prior to mating dramatically improved birth weight with a very homogenous birth weight within litter size. Improved birth weight and within-litter variation of birth weight improved pre-weaning growth performance and survival that finally dramatically increased weaning weight and total weight of weaned pigs per sow. After weaning, pigs born to SO sows grew faster and had around 10 kg higher body weight as compared to control at the age of 7 month. It was concluded that superior pigs could be produced by improving endogenous secretion of pregnant hormone during pregnancy.Key words: Birth weight, growth phenotypes, survival, prenatal growth, postnatal growth Abstrak. Penelitian ini dilakukan untuk menghasilkan anak-anak babi unggul dengan fenotipe pertumbuhan dan daya hidup yang lebih baik selama pertumbuhan pascalahir dengan cara menyuntik induk babi dengan gonadotropin sebelum pengawinan. Penelitian terdiri atas dua tahapan. Penelitian tahap pertama, 12 ekor induk babi dikelompokkan ke dalam 2 kelompok, 1) kelompok kontrol, yaitu induk yang disuntik dengan NaCl 0.95% (NSO) dan 2) kelompok yang disuntik dengan PG600 sebelum pengawinan (SO). Parameter yang diukur ialah fenotipe pertumbuhan dan daya hidup anak pada saat lahir dan selama periode prasapih. Tahap kedua, 24 anak babi lepas sapih dari percobaan tahap pertama (umur 8 minggu) dipilih (6 jantan dan 6 betinadari kelompok NSOdan 6 jantan dan 6 betina dari kelompok SO) untuk digunakan dalam pengukuran kinerja pertumbuhan pascasapih. Babi percobaan dibesarkan dan diamati sampai umur 28 minggu (7 bulan). Bobot badan diukur setiap bulan. Hasil penelitian menunjukkan bahwa perbaikan lingkungan uterus dengan cara penyuntikan induk dengan gonadotropin sebelum pengawinan secara dramatis memperbaiki bobot lahir anak dengan bobot lahir per induk yang lebih seragam. Perbaikan bobot lahir dan keseragaman bobot lahir memperbaiki kinerja pertumbuhan prasapih dan kelangsungan hidup anak yang pada akhirnya secara dramatis meningkatkan bobot sapih dan total bobot anak yang disapih per ekor induk. Setelah penyapihan, anak babi yang dilahirkan oleh induk y...

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Relationships among steroid hormone levels in newborn piglets, birth weight, placental weight, vitality of offspring and litter size

Cited by 4 publications

References 19 publications

Production of Superior Pigs as Breeding Stocks by Improving Maternal Uterus and Placental Environment during Pregnancy

Production of Superior Pigs as Breeding Stocks by Improving Maternal Uterus and Placental Environment during Pregnancy

Relationship between birth weight to placental weight ratio and major congenital anomalies in Japan

Production of Superior Pigs by Injecting the Sows with Gonadotropin Prior to Mating

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