1,720,956 research outputs found
Potensi Wilayah Kota Bukittinggi dalam Pengembangan Usaha Ternak Sapi Potong dan Kontribusinya terhadap Pendapatan Keluarga
Full text linkThe aims of the present research were to determine local base resources of Bukittinggi city for beef cattle raising especially feed lot fattening and determine contribution of beef cattle raising on familiy income. Both secondary and primer data was used quitioner was main instrumen for data gathering. Thirty eight cattle raiser was intervied with was divided into three strata, base on amount of cattle was raised. Benefit cost analysis was used to determined familiy income in cattle raising. The result study shawn that the first: Bukittinggi city has several advantages for beef cattle raising (feed lot fattening) namely: climate, topografy,marketing aspect, institutinal and local government policy. As well as availability of feed, water, labor force, medicine and tecnology. The second beef cattle raising (feed lot fattening) has contributed 18,09%, 24,67%, 57,41% respectively strata I, II, III toward family income
Iklim Mikro dan Respon Fisiologis Sapi Pesisir di Dataran Rendah dan Dataran Tinggi Sumatera Barat
Full text linkABSTRAK. Penelitian bertujuan melihat potensi iklim mikro dan respon fisiologis sapi Pesisir yang dipelihara di dataran rendah (Kota Padang (0-300 m dpl )) dan dataran tinggi (BPTU Padang Mengatas ( 600 m dpl)) Sumatera Barat. Materi yang digunakan dalam penelitian ini 8 ekor sapi Pesisir, variabel yang diukur terdiri dari 2 aspek yaitu lingkungan abiotik dan aspek fisiologis sapi Pesisir. Aspek lingkungan abiotik berupa suhu lingkungan (Ta), kelembapan udara (RH) serta Temperature Humidity Index (THI). Variabel fisiologis sapi meliputi suhu rektal (Tr), suhu kulit (Ts), frekuensi pernapasan (RR) dan denyut jantung (HR). Tr dan TS digunakan menghitung suhu tubuh sapi (Tb). Tr dan RR digunakan menghitung Heat Tolerance Coefficient (HTC). Uji beda (t-test) digunakan untuk mengetahui ada tidaknya perbedaan kondisi iklim dan respon fisiologis sapi Pesisir di dataran rendah dan tinggi Sumatera Barat. Hasil penelitian menunjukkan potensi iklim di dataran rendah adalah rerata suhu lingkungan 29,96°C, rerata kelembapan 64,22%, rerata THI 79,96 sedangkan potensi iklim di dataran tinggi adalah rerata suhu lingkungan 25,42°C, rerata kelembapan 69,48%, rerata THI 74,3. Rerata daya tahan panas sapi di dataran rendah 1,78 dan dataran tinggi 1,82. Kesimpulan penelitian menunjukkan potensi iklim dataran rendah untuk pemeliharaan sapi termasuk zona cekaman panas sedangkan dataran tinggi dalam cekaman ringan. Kondisi fisiologis sapi Pesisir di dataran rendah yang berbeda dengan sapi yang di dataran tinggi adalah suhu rektal, suhu kulit, suhu tubuh dan denyut jantung sedangkan frekuensi pernapasan didapatkan sama di kedua dataran. Daya tahan panas sapi Pesisir cukup baik ditemui di kedua dataran Sumatera Barat.
(Microclimate and physiological responses of Pesisir cattle at lowland and highland of West Sumatra)
ABSTRACT. This research aimed to investigate the potential of microclimate and physiological responses of Pesisir cattle that are maintained in lowland (Padang City (0-300 m asl)) and highland (Padang Mengatas BPTU ( 600 m asl)) in West Sumatra. The experimental animals were 8 pesisir cattle. The measured variables were abiotic environment and physiological responses of Pesisir cattle. Abiotic environmental measures were ambient temperature (Ta), humidity (RH) and Temperature Humidity Index (THI). Physiological variables were rectal temperature (Tr), skin temperature (Ts), respiratory rate (RR), and heart rate (HR). Tr and Ts were used to determine body temperature (Tb). Tr and RR are variables for calculating Heat Tolerance Coefficient (HTC). To determine whether there are differences in climatic conditions and physiological values in the two regions, the data were analyzed using a t-test. The results showed that climate potential in the lowlands was the average Ta 29.96° C, the average Rh 64.22% with an average THI 79.96 while the potential climate in the highlands was the average Ta 25.42°C, the average Rh 69, 48% with a mean THI of 74.3. The average HTC of cattle in the lowlands is 1.78 and the highlands is 1.82. The conclusion showed the climate potential of lowland for raising beef cattle includes heat stress zones, while the highlands there was mild stress. The physiological conditions of Pesisir cattle in the lowlands different from the highlands are Tr, Ts, Tb, and HR while RR is found the same in both plains. HTC of Pesisir cattle is good in both plains of West Sumatera
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Aplication of Sweet Maize Whole Plant Silage (Zea mays saccharata Sturt) and Gliricia sepium for Feed of Dairy Cattle
No full textThe low productivity of smallholder dairy cattle in Indonesia is due to limited capital and feed management. Limited land ownership, resulting in feeding from low-quality natural grasses and agricultural waste, limits milk production. Farmers rely on expensive commercial concentrate feed to improve feed quality. Efforts to improve productivity and milk quality on smallholder farms include utilizing low-cost, high-nutrient forages. Legume forages have the potential to replace commercial concentrates in dairy cow rations because they contain high crude protein (CP) and can increase livestock productivity. Using legumes as a substitute for commercial concentrates can reduce milk production costs by up to 20%. In Indonesia, the most widely cultivated legume crop is Gliricidia. Harapan Makmur Farmer Group is one of the few dairy cattle groups established in Padang City in 2011. The problem of the dairy cattle business is the high feed price, some of which comes from commercial feed. The activity method uses counseling, discussion, and the practice of making sweet corn silage mixed with Gliricidia. These activities concluded that farmers were utilizing forage from legumes to substitute commercial concentrates, and they were skilled in processing corn straw waste from sweet corn cultivation and Gliricidia into silage
Analisis Komposisi Botani dan Kapasitas Tampung pada Pastura Alam di Kecamatan Lintong Nihuta, Kabupaten Humbang Hasundutan, Provinsi Sumatera Utara
No full textABSTRAK Kecamatan Lintong Nihuta sangat potensial bagi pengembangan ternak kerbau karena daya dukung wilayah yang cukup luas. Ternak kerbau merupakan ternak utama yang dipelihara pada daerah ini. Penelitian ini bertujuan untuk menganalisis produksi hijauan dan komposisi botani pastura alam Kecamatan Lintong Nihuta, Kabupaten Humbang Hasundutan, Provinsi Sumatera Utara untuk pengembangan budidaya ternak kerbau. Metode yang yang digunakan dalam penelitian ini adalah survei dan pengamatan langsung di lapangan. Pengukuran produksi hijauan dilakukan menggunakan kuadran ukuran 1 m x 1 m. Analisis komposisi botani pastura alam dilakukan menggunakan metode Summed Dominance Ratio (SDR) berdasarkan frekuensi (keseringan). Hasil penelitian menunjukkan bahwa 74.71% hijauan pada padang penggembalaan adalah rumput, yang didominasi oleh rumput banto (Leersia hexandra) 17,73%, dan sangat miskin legum (1,28%). Produksi biomassa mencapai 20,07% ton/ha/tahun, sehingga dapat menampung ternak 2,70 ST/ha/tahun. Kualitas nutrisi pastura alam terukur rendah karena kandungan protein kasar (PK) hanya 5.92%, hal ini disebabkan rendahnya proporsi gulma pada pastura. Dari hasil penelitian dapat disimpulkan bahwa produksi hijauan dan kapasitas tampung pastura alam di Kecamatan Lintong Nihuta cukup tinggi namun kualitas nutrisi hijauan masih rendah karena proporsi legum yang rendah.Kata Kunci: Kapasitas tampung, Kerbau murrah, Komposisi botani, Lintong Nihuta Botanical Compotiton and Carrying Capacity Analysis in Lintong Nihuta District, Humbang Hasundutan Regency, North Sumatra ProvinceABSTRACT Lintong Nihuta Subdistrict is very potential for the livestock farming of buffalo because the carrying capacity of the area is quite broad. Buffaloes are the primary livestock kept in this area. This study analyzes forage production and the botanical composition of natural pastures in Lintong Nihuta District, Humbang Hasundutan Regency, North Sumatra Province, to buffalo farming. The method used in this research is a survey and direct observation in the field. Measurement of forage production used a quadrant measuring 1 m x 1 m. The analysis of the botanical composition of natural pastures used the Summed Dominance Ratio (SDR) method based on frequency. The results showed that 74.71% of the forage in the range was grass, was dominated by banto grass (Leersia hexadra) 17.73%, and was very poor in legumes (1.28%). Biomass production reaches 20.07% ton/ha/year. It could accommodate livestock 2.70 AU/ha/year. The nutritional quality of the natural pasture is measurably low because the crude protein content is only 5.92%. It is due to the low proportion of weeds in the pasture. Based on those findings, it can be concluding that the forage production and the holding capacity of the natural pasture in Lintong Nihuta District are high. However, the nutritional quality of forage is still low due to the low proportion of legumes.Keywords: Carrying Capacity, Murrah buffalo, Botanical composition, Lintong Nihut
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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