Judul: Observasi Lama Siklus Dan Periode Estrus pada kuda (Equus caballus) di detasemen kavaleri berkuda (Denkavkud) Parongpong Lembang-Jawa Barat
Abstrak: The success of reproductive activity in horses is closely related to the estrous cycle and estrus period. This study reports the estrous cycle, estrus period as well as estrus behavior in the Detasemen Kavaleri Berkuda with the environmental temperature range between 23 to 27oC (day) and 17 to 20oC (night). The length of the estrous cycle was 19.21±3.67 days, with estrus itself lasting 4.95±0.5 days. The behavior arising during estrus was decreasing appetite, squealing with stallion, occasional urinating and aversion of the vulvae labia (winking), secreting of white to cream mucus at the vulva, mare do not refusing when approached by stallion or come to the stallion and squatting, went to stud by itself and give the back part or its rump. The vulva in estrus mare appear to be larger than non estrus mare, the vulva looks wet and dried mucus left on a part of the vulva. Other characteristic were the high frequent of urination during in the stable that makes the cage looks wetter than non estrus mare and estrus mare always raising the tail in a relatively long time.
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Judul: Penentuan Estrus Melalui Gambaran Sitologi Ulas Vagina dan Hubungannya dengan Gejala Klinis Estrus pada Kambing Peranakan Etawah
Abstrak: The aims of this study was to determine estrous time of Etawah cross breed (ECB) goats through vaginal cytology profile and its correlation with clinical signs of estrous following prostaglandin administration and during the natural estrous cycle. Fifteen does were each administered with 7.5 mg prostaglandin to get a synchronized estrous response and onset of estrous. The does showing estrous response were also observed during the next estrous cycle (natural estrous cycle). Vaginal cytology profile and the correlation with clinical signs of estrous were observed when standing heat sign were visible. The result showed that the average estrous cycle was 19.7 days (18-23 days) with the duration of estrus period was 54 hours (24-72 hours). The response of estrous after prostaglandin administration was 60% of ECB with the onset of estrus was 78.6 hours (72-84 hours) and the duration of estrus was 44 hours (12-60 hours). Clinical signs of estrous were standing when ridden and vulva sign (swollen and redden vulva, vaginal discharge) generally showed moderate intensity (++). The presence of large number of superficial cells (45-53%) and small number of parabasal cells (5-8%) could be used to determine of estrous, however, it couldn’t be used alone to determine of optimal mating time. Determination of optimal mating time should be based on a combination observation of standing heat sign, clinical signs of estrus, and vaginal cytologic profile.
Keyword: Prostaglandin, Etawah cross breed, Vaginal cytology, Estrous signs, Estrous cycle

Judul: Pemanfaatan Limbah Nanas menjadi Serat sebagai Material Penguat Komposit Plastik
Abstrak: Komposit yang berasal dari serat daun nanas sebagai filler dan pati tapioka terplastisasi gliserol sebagai matriks dapat digunakan sebagai bahan baku pembuatan plastik dan dapat mengurangi penggunaan plastik dari minyak bumi. Perlu dilakukan pengembangan bionanokomposit ini karena ketersediaan minyak bumi yang terbatas, selain itu plastik yang dihasilkan ramah lingkungan dan dapat dimakan. Telah dilakukan sintesis dan karakterisasi bionanokomposit plastik kemasan dengan variasi konsentrasi filler 0% dan 5%. Komposit dengan filler 0% menghasilkan edible film yang transparan (tidak berwarna). Komposit tersebut memiliki nilai permeabilitas uap air yang tinggi yaitu sebesar 6.13 x 10-9 g s-1m-1Pa- 1. Komposit dengan filler 5% menghasilkan edible film yang tidak transparan (cenderung berwarna). Komposit tersebut memiliki nilai permeabilitas uap air yang rendah dibandingkan komposit dengan filler 0% yaitu sebesar 3.36 x 10-9 g s-1m- 1Pa-1. Penambahan serat daun nanas menyebabkan peningkatan nilai massa jenis komposit. Dari hasil pengujian serat daun nanas layak digunakan sebagai pengisi pada plastik.
Keyword: komposit, pati tapioka, permeabilitas uap air, serat daun nanas