Geographical and inter-regional differences have contributed to the diversity of child pneumonia cases in Central Java, so a spatial regression modelling is formed that is called Geographically Weighted Regression (GWR). GWR is a development of linear regression by involving diverse factors geographical location, so that local parameters are produced. Sometimes, there are non-local GWR parameters. To overcome some non-local parameters, Semiparametric Geographically Weighted Regression (SGWR) is formed to develop a GWR model with local and global influences simultaneously. SGWR Model is used to estimate the model of percentage of children with pneumonia in Central Java with population density, average temperature, percentage of children with severe malnutrition, percentage of children with under the red line weight, percentage of households behave in clean and healthy lives, and percentage of children who measles immunized. SGWR models on percentage of children with pneumonia in Central Java produce locally significant variables that is population density, average temperature, and percentage of households behave in clean and healthy lives. Variable that globally significant is percentage of children with severe malnutrition. Based on Akaike Information Criterion (AIC), SGWR is a better model to analize percentage of children with pneumonia in Central Java because of smallest AIC. Keywords: Akaike Information Criterion, Geographically Weighted Regression, Semiparametric Geographically Weighted Regression
Penelitian ini bertujuan untuk membandingkan lama bunting dan litter size kelinci NZW baik yang dikawinkan secara alami maupun inseminasi buatan. Penelitian ini menggunakan 32 kelinci betina dan 2 kelinci jantan. Perlakuan yang digunakan dalam penelitian ini adalah sistem perkawinan secara alami dan inseminasi buatan. Parameter yang diamati adalah lama bunting dan litter size. Penelitian ini menggunakan analisis independent sample t-test dan mann whitney u-test. Analisis ndependent sample t-test digunakan untuk mengetahui pengaruh sistem perkawinan terhadap lama bunting dan litter size, serta untuk mengetahui pengaruh status fisiologis kelinci terhadap lama bunting dan litter size kelinci NZW yang dikawinkan secara alami. Analisis Mann whitney u-test digunakan untuk mengetahui pengaruh status fisiologis kelinci terhadap lama bunting dan litter size kelinci NZW yang dikawinkan secara inseminasi buatan. Hasil menunnjukkan bahwa perbedaan sistem perkawinan tidak memberikan pengaruh secara nyata (P>0,05) terhadap lama bunting dengan rata-rata 31,70 hari dan litter size kelinci NZW dengan rata-rata 4,32 ekor. Pada perkawinan secara alami, ststus fisiologis kelinci dara dan induk tidak memberikan pengaruh nyata (p>0,05) terhadap lama bunting dengan rata-rata 31,60 hari dan litter size dengan rata-rata 4,89 ekor. Pada perkawinan secara inseminasi buatan, status fisiologis kelinci dara dan induk tidak memberikan pengaruh nyata (P>0,05) terhadap lama bunting dengan rata-rata 31,88 hari, tapi memberikan pengaruh nyata (P<0,05) terhadap litter size dengan rata-rata 2,50-5,00 ekor.Keywords: Kelinci NZW, Lama Bunting, Litter size
The success of artificial insemination must be supported by a balance of nutrients for livestock. AI combined with sexing produces offspring according to wishes of the breeder. This study aims to determine the increase in concentration on the success of Artificial Insemination using frozen semen sexing. This research was conducted at the people's beef cattle farm, Sumber Pucung District, Malang Regency. The limousine crosser used was 30 cows. Cattle aged 1.8 – 5 years with BCS 3-5 (score 1-9) Treatment T0 : The usual feed given by farmers (Control). T1: Control+HQFS. Parameters NRR-1, NRR-2, Conception Rate (CR), Pregnancy Rate (PR). The additional feeding of concentrate did not significantly affect the reproductive parameters. The results showed that at T0 the results of NRR-1 and NRR-2 were 80% and 73.33%, respectively. while in T1 it was 73.3% and 66.67%. The results showed that the CR in both treatments was 26% and the results showed that the PR for T0 was 26% and for T1 was 33%. Insufficient feed consumption for all treatments based on NRC requirement data, T0 and T1 dry matter consumption respectively 6.6 and 7.3 Kg/head/day, Protein consumption 0.36 and 0.3 Kg/head/day and TDN consumption of 3.08 and 3.20. kg/head/day.
Ongole cattle in smallholder farms on Java, Indonesia, have been crossed with Limousin, which is not controlled repeatedly. The character of estrus affects the success of Artificial Insemination. This study aimed to determine the relationship between estrus characters before double dose artificial insemination using frozen semen sexing. The research was conducted in Senggreng Village, Sumber Pucung District, Malang Regency. The material was 45 head of Limousin crossbred cow inseminated using sexing semen produced by the Singosari National Artificial Insemination Center (SNAIC). The sexed semen processed with the Percoll Density Gradient Centrifugation (PDGC) method. The average body value of cows between 3-5 (scale 1-9) with an average age of 1.8-7 years, normal reproduction, clear signs of estrus. The reproductive organs were examined by rectal palpation to confirm that the cows are not pregnant. Parameters of estrus character were vulvar color, cervical mucus, vaginal temperature, pH, vulvar swelling, and heat detector value. The result showed that the estrus characters, including vulva color, vulva swelling, cervical mucus, vaginal temperature, cervical mucus pH, and heat detector score in the first and second artificial insemination have a low relationship. The regression models produced can be used but are less precise to estimate the relationship between estrus characters because the coefficient of determination shows a low influence.
One of the strategies to increase the cattle population in Indonesia is the IB (artificial insemination) method. The AI program's improvement of reproductive efficiency can use the estrus synchronization method. The purpose of this study was to see the effect of body weight and body condition score on the estrus synchronization response with the brand "lutelyse." This research was conducted in Senggreng Village, Sumberpucung District, Malang Regency, by conducting field experiment research methods. This study took a sample of 21 female broodstock synchronized with PGF2α as much as 2 ml, which was then carried out by observing estrus behavior for 24 hours after synchronization. Based on the study results, the percentage of oestrus in cows with BCS 4, which is 76.92%, is lower than cows with BCS 5, which is 100%. For the synchronization distance with the onset of estrus in BCS 4 cattle, namely 3802.92 ± 1007.80 (minutes) and BCS 5, namely 4081 ± 884.91 (minutes) with the results of the conception rate of BCS 4 cattle of 38.46% and BCS 5 of 50%. This study concludes that BCS 5 has a higher success rate than BCS 4.
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