Twenty Pasundan cows were used in this study to know the effect of synchronization using prostaglandins and hormone gonadotropins on the picture of erythrocytes, leukocytes, and pasundan cow hemoglobin levels during pregnancy. The Pasudan heifers experimented with estrus using a combination of prostaglandin hormone (PGF2α) as much as 5 ml per head and gonadotropin realising hormone (GnRH) as much as 2.5 ml per head intramuscular to homogenize fertility conditions and improve fertility. The estrus mother cow is immediately carried out artificial insemination as much as 2 times with an interval of 6 hours. All test cows were given forage basalt food and adlibitum drinking water. Pregnancy examination is carried out on the 60th day and the 150th day of post-insemination using the rectal palpation method. Changes observed in the form of hematological concentrations include erythrocytes, leukocytes, and hemoglobin. The results showed that the concentration erythrocytes, leucocyte, and hemoglobin for Garut region respectively was 6.24±0.61 (million/μl); 11.54±0.25 (thousand/(μl); 11.54±0.61 (g/dl) higher than Bogor in a row was 5.99 ± 0.64 (million/μl); 11.46± 1.41 (thousand/(μl); 11.13 ± 0.60 (g/dl)). The results of the variance analysis showed that the synchronization of estrus with prostaglandins (PGF2α) and the gonadotropin releasing hormones (GnRH) did not differ markedly (P>0.05), between the concentrations of erythrocytes, leucocytes, and hemoglobin during the gestation period with cows that were not pregnant. It concluded that the synchronization treatment of estrus with prostaglandins (PGF2α) and gonadotropin releasing hormones (GnRH) had no effect on the profile of hematological concentrations during the gestational period (60 days and 150 days) and was no different from Pasundan heifers that are not pregnant.

The research entitled “Identification of Factors Contributed to  Beef Cattle Reproductive Disorders in Ogan Komering Ulu Timur Regency (OKU Timur) of South Sumatra Province in UPSUS SIWAB Program 2018” was done on Semendawai Suku III and Semendawai Timur, OKU Timur regency, South Sumatra on October 10th until November 10th 2018. The purpose of this research is to identify the factors contributed to reproductive disorders of beef cattle, mapping the factors that affect reproductive disorders of beef cattle and generate strategies to improve reproductive performance of beef cattle in OKU Timur Regency. The targets in the study are 40 beef cattle breeders, 2 inseminators and 2 employees of the Local Office of Fisheries and Livestock Services of OKU Timur Regency.The research was done by survey, the method used was qualitative modeling with the Causal Loop Diagram (CLD). The variables observed in the study were variables related to reproductive performance consisted of Body Condition Score (BCS), Calving Interval (CI), Service per Conception (S/C), Conception Rate (CR) and variables related to factors indicated to have contribution to reproductive disorders such as farmer characteristics, resources owned by farmers and resources possessed by inseminators. The results showed that reproductive disorders of beef cattle in OKU Timur Regency included ovarian hypofunction, endometritis, pyometra, systolic ovary, silent heat, vulvitis, vaginitis, mummification and placental retention. The identified factors contributed to reproductive disorders are low quality and availability of feed, low breeders' knowledge, absence of postpartum treatment, limited medical supplies and quantity, unstandard technical implementation of artificial insemination, cross breeding of heifer, insufficient inseminator facilities. Strategies that can be done to improve the reproductive performance of beef cattle is to increase the role of the government in providing superior feed seeds and assisting by Universities; increasing the number of medicalsupplies and facilities, equip inseminator with sufficient facilities, and technical insemination and increasing the intensity of extension services to improve farmers' knowledge and utilization of potential agricultural waste with technology.

This study aims to determine the morphometric characteristics and reproductive performance of Pasundan cows which are extensively reared on smallholder farms in the coastal areas of the south (Garut, Cianjur, and Sukabumi) and North Priangan (Bogor, Purwakarta, and Sumedang). This research is descriptive research with a qualitative approach. Production characterization was carried out using a simple method, namely by measuring the body surface including shoulder height, chest circumference, body length, and bodyweight of Pasundan cattle. Meanwhile, the reproductive characteristics discuss puberty, service per conception (S / C), conception rate (CR), calving rate, postpartum estrus, postpartum mating, days open (DO), calving interval (CI), calving birth weight, and calving rate. calves weight growth. Data were collected by survey, the location was determined by purposive sampling in the area of the seed source with the largest population and the random sampling of livestock was determined purposively as many as 30 Pasundan cows from each region. Data were analyzed using quantitative descriptive analysis. The results showed that the morphometric characteristics of Pasundan cattle included mean shoulder height of 123.0 0 ± 3.06a cm VS 121.34 ± 2.82a in males and 110.34 ± 2.78 vs 108.00 ± 2.14a in females. Body length 115.74 ± 3.30 cm VS 115.34 ± 2.97acm in males and 112.67 ± 2.97cm VS 109.67 ± 1.82 cm in females. Chest circumference 145.67 ± 2.97cm VS 142.67 ± 2.67cm bulls and 136.00 ± 2.95cm VS 131.00 ± 2.92cm in females, Bodyweight 268.0 ± 17.00 kg VS 246.00 ± 7.00a for males and 215.0 ± 15.00 kg VS 194.00 ± 54.00kg in females. As for reproductive characteristics, it shows puberty of 20-24 months., S / C 1.4 - 1.6, Conception rate 65-70%, calving rate 62.5-65%, Postpartum Estrus 50-60 days, postpartum mating 72-104 days, day -open 94-126 days and a calving interval of 12-14 months. Calves' birth weight was 18.0 - 18.5 kg and daily body weight gain ranged from 0.48 to 0.50 kg. It was concluded that the morphometric characteristics and reproductive performance of Pasundan cattle in the Pesisir Selatan area were better than North Priangan.

Smallholder native chicken farming continues to face challenges that include simple farming management as well as ND and AI diseases that lead to decreased productivity and increased mortality rate. The aim of the study was to develop a strategy to reduce the mortality rate of native chickens in extensive and semi-intensive rearing systems. This study uses survey method with 78 extensive and 88 semi-intensive native chicken farmers as respondent. This study explores the disease incidence, illness treatment, mortality rate, as well as AI and ND antibody titers which then analyzed descriptively. System dynamic model using Ventana software (VENSIM) was used to identify the contributing factors to the mortality rate of native chicken in smallholder farming. The results showed that the common diseases among native chickens reared in semi-intensive and extensive farming are AI, ND, CRD, and pullorum, with a high rate of disease-specific mortality (>5%). Compared to native chickens in semi-intensive farming, those of in extensive farming showed a higher natural immunity against AI and ND. The qualitative modeling produced seven reinforcing loops and five balancing loops. Some challenges in developing native chicken farming were disease incidence due to lack of proper land and cage, the occurrence of selling unhealthy chickens, farmers opting out for poultry vaccination, high operational cost, lack of business motivation, limited knowledge on poultry management and health, lack of extension programs, and traditional management. We concluded that the rate of disease-specific mortality (ND and AI) remained high in native chickens reared both in extensive and semi-intensive farming. It takes an effort to improve farming management, vaccination, and the government’s contribution through extension programs to decrease disease incidence and mortality rate of native chickens.

Twenty Pasundan cows were used in this study in order to determine the concentration of the hormones estrogen, progesterone, and the level of pregnancy. The cows were randomly divided into two groups of 10 each. The first group was synchronized with a prostaglandin double injection (Lutalyse TM, Upjohn, Kalmozoo USA, containing 25 mg of Dinoprost Tromethamin) at a dose of 5 ml/head intramuscularly 2 (two) times with an interval of 11 days. The second group was injected with prostaglandins (PGF2α) at a dose of 5 ml/head intramuscularly 2 (two) times with an interval of 11 days, but on the 9th day they were injected with gonadotropin realizing hormone (Fertagyl, Intervet Animal Health UK Ltd, Cambridge; which contained 100 µg Gonadorelin which is synthetic GnRH)), Cows in heat are artificially inseminated twice with an interval of 6 hours. The variables observed were concentrations of estrogen and progesterone during estrus and 2 months of pregnancy, service preconception, and calving rate. The data were processed with analysis of variance and descriptive. The results showed that cows that were injected with PGF2 α + GnRH, had an average plasma concentration of the hormone progesterone 2.68 ± 0.19 ng/ml and 26.65 ± 2.09 pg/ml estrogen, service preconception 1.0, a calving rate 90% higher than those injected with α PGF2 including progesterone. 2.68 ± 0.19 ng / ml and estrogen 26.65 ± 2.09 pg / ml, service preconception 1.2 and calving rate 90%. The results of the analysis of variance showed that the plasma concentrations of progesterone and estrogen when the cows were 60 days pregnant when they were injected with the PGF2α + GnRH combination had a very significant effect (P <0.01) higher than the control (PGF2α). It was concluded that the progesterone, estrogen profile, pregnancy rate results from estrus synchronization using a combination of PGF2 α and HnRH higher than single PGF2α.