Judul: Performance of growing pig born of superovulated gilts with PMSG and hCG prior to mating
Abstrak: This research was conducted to study the effect of superovulation prior to mating on gilts reproduction performance. Sixty gilts were divided into two groups namely 1) gilts without superovulation (control group) and 2) gilts with superovulation (superovulated group). Once the gilts showed a standing heat symptoms, the boar was introduced into the pig pen to mate the gilts. During the study, the pregnant gilts were kept together in postal pens and two weeks before farrowing each pregnant gilt was then placed in 2.5 x 3.5 m2 individual cages equipped with feeding and drinking devices. A Completely Randomized Design (CRD) was used in the first phase of study, consisting of two treatments with 30 replicates of each. Data were analysed based on the mathematical model procedures, Yij = μ + αi + εij. All data were then analysed using variance. The results showed that the superovulation treatments significantly (P <0.01) shortened gestation period (GP) in superovulated gilts), increased the body dimension (BD), increased the front leg high of birth (FLHB, increased the rear leg high of birth (RLHB), increased pig weight at birth (PWAB), and increased the birth weight per, increased the daily sows feed consumption (DSFC), increased the sows milk production per suckling (SMPPS), increased the daily milk production (DMP), increased the milk production per lactation (MPPL), increased the piglet gain weight (PGW), reduced the mortality, increased the weaning weight per litter (WWPL), and increased litter size at weaning (LSW). But the superovulation treatment was just significantly (P <0.05) improved sow body weight (SBW), increased the litter size born alive (LSBA), increased the the birth weight per litter, increased pig weigth at birth (PWAB), whereas the superovulation did not significantly affect (P>0.05) the litter size dead born (LSDB) and the litter size at birth ( LSAB). It is concluded that the superovulation treatment in the gilts before mating can improve sows reproductive performances through endogenous secretions of hormones of pregnancy, which is followed by the improvement of pigs weigth at birth, litter size at weaning, mortality, consumption of rations, and the sow milk production.
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Judul: Efektivitas Penyuntlkan Pregnant Mare's Serum Gonadotropindalam Superovulasi Pada Bobot Badan Dan Ukuran Tubuh Anak Tikus Putih Saat Lahir
Abstrak: The goal of this experiment was to study the effect of superovulation on body weight and size of pups at birth. Superovulation technique was done with the injection of PMSG before mating on female rats, to increase endogenous secretion of reproductive hormones. Twenty mature rats Sprague-Dawley strained were assigned into four treatments, each treatment with five rats. The treatment was PMSG injection, with: 0; 37,5; 75 and 150 IUlkg BW dosage respectively. PMSG injection was given intra peritoneauy at diestms cyde, then 48 hours later fouowed by HCG injection to stimulate ovulation. The experimental rats were mated and only pregnant rats were maintained until parturition. The body weight and size (head, spine, fore leg and hind leg) of 226 born pups were measured The result showed that superovulation did not significantly influence birth weight, length of head, spine and fore leg. Only 37,5 IUlkg BW dosage that increased the length of the hind leg. Superovulation did not influence the parameters within as weu as among litter size.
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Judul: Kerusakan bantalan rel kereta api di wilaya inspeksi 2 jalan dan bangunan perusahaan jawatan kereta api (pjka),cirebon
Abstrak: Kereta api merupakan salah satu sarana angkutan yang murah, cepat dan aman serta dapat mengangkut barang dalam jumlah besar. Kelancaran operasi sarana angkutan tersebut banyak ditentukan oleh kondisi jalan rel, termasuk kondisi bantalannya. Dalam hal ini bantalan rel kereta api dapat dibuat dari kayu, logam, atau beton. Namun demikian kayu merupakan bahan yang paling banyak digunakan sebagai pembuat bantalan rel kereta api di berbagai negara. Kenyataan menunjukkan bahwa kayu yang digunakan sebagai bantalan rel kereta api sering mengalami berbagai macam kerusakan yang menyebabkan bantalan tidak berfungsi lagi atau menurun fungsinya. Di Indonesia, informasi mengenai jenis dan tingkat kerusakan bantalan kayu masih sangat kurang, pada- hal informasi tersebut sangat penting sebagai dasar pertimbangan dalam rangka pemeliharaan jalan kereta api, agar umur pakainya (service life) lebih lama.
Keyword: bantalan rel