bluuebunny/crossref_metadata_2025_split huggingface dataset:
Psychiatric Profiles of eHealth Users Evaluated Using Data Mining Techniques: Cohort Study
Authors: Lopez-Castroman Jorge , Abad-Tortosa Diana , Cobo Aguilera Aurora , Courtet Philippe , Barrigón Maria Luisa , Artés Antonio , Baca-García Enrique 
Published: April 2020

Background
New technologies are changing access to medical records and the relationship between physicians and patients. Professionals can now use e-mental health tools to provide prompt and personalized responses to patients with mental illness. However, there is a lack of knowledge about the digital phenotypes of patients who use e-mental health apps.

Objective
This study aimed to reveal the profiles of users of a mental health app through machine learning techniques.

Methods
We applied a nonparametric model, the Sparse Poisson Factorization Model, to discover latent features in the response patterns of 2254 psychiatric outpatients to a short self-assessment on general health. The assessment was completed through a mental health app after the first login.

Results
The results showed the following four different profiles of patients: (1) all patients had feelings of worthlessness, aggressiveness, and suicidal ideas; (2) one in four reported low energy and difficulties to cope with problems; (3) less than a quarter described depressive symptoms with extremely high scores in suicidal thoughts and aggressiveness; and (4) a small number, possibly with the most severe conditions, reported a combination of all these features.

Conclusions
User profiles did not overlap with clinician-made diagnoses. Since each profile seems to be associated with a different level of severity, the profiles could be useful for the prediction of behavioral risks among users of e-mental health apps.
Interpreting COVID-19 and Virtual Care Trends: Cohort Study
Authors: Khairat Saif , Meng Chenlu , Xu Yuxuan , Edson Barbara , Gianforcaro Robert 
Published: April 2020

Background
The coronavirus disease (COVID-19) pandemic is rapidly spreading across the world. As of March 26, 2020, there are more than 500,000 cases and more than 25,000 deaths related to COVID-19, and the numbers are increasing by the hour.

Objective
The aim of this study was to explore the trends in confirmed COVID-19 cases in North Carolina, and to understand patterns in virtual visits related to symptoms of COVID-19.

Methods
We conducted a cohort study of confirmed COVID-19 cases and patients using an on-demand, statewide virtual urgent care center. We collected data from February 1, 2020, to March 15, 2020. Institutional Review Board exemption was obtained prior to the study.

Results
As of March, 18 2020, there were 92 confirmed COVID-19 cases and 733 total virtual visits. Of the total visits, 257 (35.1%) were related to COVID-19-like symptoms. Of the COVID-19-like visits, the number of females was 178 (69.2%). People in the age groups of 30-39 years (n=67, 26.1%) and 40-49 years (n=64, 24.9%) were half of the total patients. Additionally, approximately 96.9% (n=249) of the COVID-like encounters came from within the state of North Carolina. Our study shows that virtual care can provide efficient triaging in the counties with the highest number of COVID-19 cases. We also confirmed that the largest spread of the disease occurs in areas with a high population density as well as in areas with major airports.

Conclusions
The use of virtual care presents promising potential in the fight against COVID-19. Virtual care is capable of reducing emergency room visits, conserving health care resources, and avoiding the spread of COVID-19 by treating patients remotely. We call for further adoption of virtual care by health systems across the United States and the world during the COVID-19 pandemic.
PERBEDAAN PERSENTASE PEMBERIAN RANSUM ANTARA SIANG DAN MALAM TERHADAP PERFORMA AYAM JANTAN TIPE MEDIUM DI KANDANG POSTAL
Authors: Nova Khaira , Riyanti Riyanti , Septinova Dian , Santosa Purnama Edy 
Published: April 2020

The objective of this experiment was to determine the effects of different percentage of ration between day and night to male chicken medium type performance; the best level of percentage of ration that given between the day and night in chicken coop. A total of one hundred and forty four day-old male chicks medium type were divided into 3 treatments and 6 replications, each treatment consist of 8 male chickens. The treatments were ration that given 30% during the day and 70% the night; ration that given 50% during the day and 50% the night; ration that given 70% during the day and 30% the night. This research was conducted from August through October 2018 in Integrated Laboratory Department of Animal Husbandry, Faculty of Agriculture, University of Lampung. Data were subjected to analysis variance. Significant was considered at 5% level of probability. The results showed, percentage ration between day and night signicant influence feed consumption (P <0.05), but not significant effect to body weight and feed conversion ratio. The percentage of ration given 30% during day and 70% night is the best treatment influence feed conversion ratio (2,41) with feed consumption 1.738.03 g/bird and body weight 718,58 g/bird. Keywords : Male chickens, Ration percentage, Chicken coop
SURVEI SEROLOGIS TOXOPLASMOSIS PADA TERNAK SAPI DI KABUPATEN PRINGSEWU MENGGUNAKAN METODE TOXOPLASMA MODIFIED AGGLUTINATION TEST (To-MAT)
Authors: B. Galang , R. Emantis , P. Gina Dania , S. Endah 
Published: April 2020

The cattle population in Lampung Province has a relatively high number when compared to several other provinces. Pringsewu is one of the districts in Lampung Province having the supplier potential of beef in Lampung. The higher the population and production, could cause a potential infection of toxoplasmosis to livestock and human. So far the prevalence of toxoplasmosis in Pringsewu District. This study was conducted to determine the level of toxoplasmosis infection in cattle in Pringsewu district. This study used the To-MAT (Toxoplasma Modified Agglutination Test) method to test Toxoplasma gondii infection in blood of cows samples. The result of the study found that at a chronic level there were 23/24 cows positively infected with T.gondii. Whereas in acute level there are 8/24 cows positively infected with T. gondii. In general, the prevalence of toxoplasmosis is 95.8%. Keywords : Toxoplasmosis, Cow, To-MAT (Toxoplasma Modified Agglutination Test) method, Infection
EVALUASI SISTEM MANAJEMEN USAHA PEMBIBITAN SAPI BALI TERINTEGRASI DENGAN PERKEBUNAN KELAPA SAWIT DI KABUPATEN PASAMAN BARAT, PROVINSI SUMATERA BARAT
Authors: Setiawan Bagus Dimas , Arfa’i Arfa’i , Nur Yuliaty Shafan 
Published: April 2020

The research objective was to evaluate: 1) Implementation of integration of Bali cattle and oil palm plantations; 2) Obstacles faced in implementing the integration of Bali cattle with oil palm plantations. The study was conducted in Pasaman Barat District, which received assistance of fund from Directorate General of Animal Husbandry in 2012 in the project of integration of beef cattle with oil palm plantation. The method used were survey method, direct observation and using questionnaire. Respondents involved were members of farmer-group who carried out the integration of Bali cattle and palm oil plantation program as many as 56 people from four groups. Data was analyzed using descriptive analysis and comparing the results obtained with the objectives of the integration program itself. The results showed that the effort to integrate Bali cattle with oil palm plantation business was not optimal. The feedstuff given to cattle were superior grass and field grass originating from oil palm plantations. However, oil palm fronds and leaves have not been utilized, and palm oil industry waste in the form of palm mud, fiber palm oil, and palm kernel meal have not been used optimally as well. Utilization of cattle feces as fertilizer for oil palm plants has been used in several groups, but still in the form of untreated fertilizers. The obstacles faced in implementing this integration system are such as the lack of knowledge of farmers about integration, and the mastery of livestock waste processing technology and waste from oil palm plantations is still low, so that the application of integration has not been optimally carried out. Keywords: Bali Cattle, Integration, Oil Palm Plantation, Pasaman Barat District, Survey Method.
PENGARUH PENAMBAHAN LEVEL VITAMIN E-SELENIUM DALAM PAKAN TERHADAP FERTILITAS DAN DAYA TETAS TELUR HASIL PERSILANGAN AYAM SENTUL DENGAN AYAM RAS PETELUR
Authors: Haryuni Nining , Lidyawati Anna , Khopsoh Binti 
Published: April 2020

The purpose of this research was to obtain a dose of vitamin E-selenium addition in feed on the quality of hatched eggs resulting from crossing Sentul chicken with laying hens. This research used 200 hatching eggs produced from the 34-week-old Isa Brown strain of laying hens which were treated and inseminated using Sentul chicken males. The experimental method used in this research was a completely randomized design CRD) with 5 treatments and 5 replications with each replication consisting of 8 hatching eggs. The treatments feed in this research were as follows: P0 = Basal Feed, P1 = Basal Feed + 21.75 ppm vitamin E and 0.23 ppm selenium, P2 = Basal Feed + 43.5 ppm vitamin E and 0.46 ppm selenium, P3 = Basal Feed + 65.25 ppm vitamin E and 0.69 ppm selenium, P4 = Basal Feed + 87 ppm vitamin E and 0.92 ppm selenium. The results of this research were that the addition of vitamin E-selenium levels in feed had no significant effect (P> 0.05) on the weight of hatching eggs, fertility, embryo mortality and hatchability. Keywords: Vitamin E-Selenium Level, Feed, Hatching Eggs, Sentul Chicken ,Laying Hens
PENGGUNAAN KALIANDRA (Calliandra calothyrsus), Indigofera sp. DAN CAMPURANNYA DALAM RANSUM SEBAGAI PENGGANTI KONSENTRAT TERHADAP PRODUKTIVITAS DOMBA GARUT JANTAN
Authors: Nurjannah Syifa , Ayuningsih Budi , Hernaman Iman , Susilawati Iin 
Published: April 2020

This research aimed to determine the productivity of livestock. Feed availability in the dry season is one of the causes low productivity of livestock. Calliandra calothyrsus (C. calothyrsus) and Indigofera sp. are leguminosae plant that resistant to drought and could produce high productivity. Both can be used as a sustainable animal feed and reduce production costs. The animal used was weaned male sheep. The method used was Completely Randomized Design (CRD), with six treatments (P0 : 70% Grass + 30% Concentrate, P1 : 70% P. Grass + 15% Concentrate + 15% C. calothyrsus, P2 : 70% Grass + 15% Concentrate + 15% Indigofera sp., P3 : 70% Grass + 30% C. calothyrsus, P4 : 70% Grass + 30% Indigofera sp., P5 : 70% Grass + 15% C. calothyrsus + 15% Indigofera sp.) and four replication. The observed variables were dry matter consumption, average daily gain (ADG), and feed conversion. The results showed that the used of 15% C. calothyrsus and 15% Indigofera sp. was more efficient. The highest value of dry matter consumption (P<0,05) and average daily gain (P>0,05) obtained P5 treatment, respectively 508,80 g/day and 45,36 g/day, while the lowest value of feed conversion (P>0,05) obtained P0 (11,69) which was not significantly different with P5 (11,75). Keywords: Calliandra calothyrsus, Indigofera sp., weaned male sheep, the productivity of livestock
SURVEI SEROLOGIS TOXOPLASMOSIS PADA TERNAK KAMBING (Capra sp.) DENGAN METODE TOXOPLASMA MODIFIED AGLUTINATION TEST (To-MAT) DI DESA PURWOSARI, KECAMATAN METRO UTARA, KOTA METRO
Authors: S. Adryan Filly , R. Emantis , P. Gina Dania , S. Endah 
Published: April 2020

Toxoplasmosis is a zoonotic disease caused by parasitic protozoa, Toxoplasma gondii. Transmission of toxoplasmosis can occur through direct infection, ie when humans eat meat from infected animals and are eaten half-cooked. Goats are one of the most half-cooked animals such as satay. In the city of Bandarlampung the prevalence of toxoplasmosis in goats circulating in the community reached 60%. This study aims to determine the prevalence and level of toxoplasmosis infection in goat livestock in Purwosari Village, Metro Utara. This research was conducted from November to December 2018. This type of research was descriptive using serological with the To-MAT (Toxoplasma Modified Aglutination Test) method. The result of the study found that in Purwosari, Metro Utara the prevalence of toxoplasmosis in goats circulating in the community reached 96,67%. Keywords: Capra sp., To-MAT Method, Toxoplasmosis
ANALISIS PROFITABILITAS USAHA TERNAK BROILER PADA SKALA YANG BERBEDA DI KECAMATAN SUKOWONO KABUPATEN JEMBER
Authors: Riduwan Achmad , Prasetyo Anang Febri 
Published: April 2020

Tujuan penelitian ini untuk mengetahui tingkat profitabilitas usaha ternak broiler di Kecamatan Sukowono Kabupaten Jember. Penelitian ini merupakan penelitian deskriptif. Data diperoleh dengan wawancara terstruktur menggunakan kuisioner pada 28 peternak di Kecamatan Sukowono Kabupaten Jember. Sampel dibedakan menjadi dua skala berdasarkan populasi ternak yaitu skala 1 dengan populasi < 5.000 ayam dan skala 2 dengan populasi ≥ 5.000 ayam. Hasil penelitian menunjukkan pada skala 1 dan skala 2 mengalami kerugian pada dua periode awal, yaitu pada skala 1 sebesar 11,00% dan -6,53%, sedangkan pada skala 2 sebesar -6,72% dan -4,53%. Peternak mendapatkan keuntungan pada periode ketiga yaitu, skala 1 sebesar 16,89% dan skala 2 sebesar 12,53%. Penelitian ini menunjukkan pasca pembatasan penggunaan antibiotik pada pakan menyebabkan peternak mengalami kerugian selama 2 periode. Kata Kunci: Broiler, Pendapatan, Peternak, Profitabilitas, Skala.
PENGARUH PERUBAHAN SPASIAL MIKROKLIMATIK AMONIA PADA ZONA PENEMPATAN DAN PANJANG KANDANG BERBEDA TERHADAP PERFORMA AYAM BROILER PERIODE STARTER
Authors: Jannah Liza Meidzul , Sarjana Teysar Adi , Suprijatna Edjeng 
Published: April 2020

Penelitian ini bertujuan untuk mengkaji dampak perubahan spasial mikroklimatik amonia pada zona penempatan dan panjang kandang berbeda terhadap perfoma ayam broiler periode starter. Materi penelitian 2 unit closed house ukuran 60 x 12 m2 berkapasitas 11.000 ekor dan ukuran 120 x 12 m2 berkapasitas 22.000 ekor, 600 ekor DOC ayam broiler strain Cobb dalam rancangan perlakuan split plot acak kelompok dengan 2 mainplot, yaitu panjang kandang 60 m dan kandang 120 m dan 4 subplot, yaitu zona penempatan ayam terdiri dari Zona 1 (sejajar inlet), Zona 2 (¼ panjang kandang), Zona 3 (½ panjang kandang) dan Zona 4 (¾ panjang kandang). Parameter yang diamati yaitu bobot badan, pertambahan bobot badan, konversi pakan, indeks perfoma, Income Over Feed Cost (IOFC), makroklimat dan mikroklimatik pada setiap unit zona penempatan ayam dan panjang kandang sebagai gambaran kondisi penelitian. Hasil penelitian menunjukkan terdapat interaksi antara zona penempatan ayam dan panjang kandang terhadap performa ayam broiler. Zona penempatan ayam yang lebih jauh dari inlet dan kandang yang lebih panjang menunjukkan hasil signifikan (P<0.05) menurunkan bobot badan, pertambahan bobot badan, indeks perfoma, dan IOFC, serta sebaliknya, meningkatkan konversi pakan. Simpulan penelitian ini adalah peningkatan spasial mikroklimatik amonia pada zona penempatan ayam yang lebih jauh dari inlet dan kandang yang lebih panjang menurunkan perfoma ayam broiler periode starter. Kata kunci: Spasial mikroklimatik amonia, Zona penempatan, Panjang kandang, Perfoma, Ayam broiler
KAJIAN IN VITRO RANSUM SAPI POTONG YANG MENGANDUNG BUNGKIL TENGKAWANG TERHADAP FERMENTABILITAS DAN KECERNAAN
Authors: Muslimah Aulia Putri , Istiwati Ririn , Budiman Atun , Ayuningsih Budi , Hernaman Iman 
Published: April 2020

Bungkil Tengkawang merupakan limbah pengolahan biji Tengkawang menjadi minyak yang memiliki potensi sebagai pakan ruminansia. Penelitian bertujuan untuk mengevaluasi penggunaan bungkil Tengkawang dalam ransum sapi potong secara in vitro. Penelitian dilakukan secara eksperimental dengan menggunakan rancangan acak lengkap. Ransum terdiri atas 5 perlakuan penggunaan bungkil Tengkawang dalam ransum sapi potong, yaitu 0% (R1), 9,75% (R2), 19,64% (R3), 30,09% (R4), dan 40,08% (R5). Masing masing perlakuan diulang empat kali. Hasil menunjukkan bahwa penggunaan bungkil Tengkawang dalam ransum meningkatkan konsentrasi asam lemak terbang, N-NH3, kecernaan bahan kering dan kecernaan bahan organik (P<0,05). Konsentrasi dan kecernaan tertinggi diperoleh pada perlakuan R5 dengan nilai asam lemak terbang, N-NH3, kecernaan bahan kering dan kecernaan bahan organik berturut-turut 135,57 mM, 6,16 mM, 65,30%, dan 71,15%. Kesimpulan penggunaan bungkil Tengkawang dalam ransum sapi potong tidak mengganggu fermentabilitas dan kecernaan secara in vitro. Penggunaannya sampai 40,08% menghasilkan fermentabilitas dan kecernaan tertinggi. Kata kunci: Bungkil Tengkawang, Fermentabilitas, In vitro, Kecernaan, Sapi potong
PENGARUH METODE PENGOLAHAN DAN WAKTU PEMERAMAN TERHADAP KUALITAS NUTRISI PELEPAH SAWIT SEBAGAI BAHAN PAKAN TERNAK KERBAU RAWA (Buffelus asiaticus)
Authors: Laksono Judo , Ibrahim Wasir 
Published: April 2020

Penelitian ini bertujuan untuk mengevaluasi kualitas nutrisi (pH, kadar air, bahan kering, protein kasar dan serat kasar) pelepah sawit sebagai bahan pakan ternak Kerbau Rawa (Buffelus asiaticus). Rancangan penelitian yang digunakan adalah Rancangan Acak Lengkap (RAL) dengan pola faktorial (3x3). Faktor pertama terdiri dari metode pengolahan amoniasi (P1), silase (P2), dan fermentasi (P3). Faktor kedua waktu pemeraman yang terdiri dari 18 hari (W1), 21 hari (W2), dan 24 hari (W3). Total unit percobaan sebanyak 27 unit. Hasil penelitian yang didapat dianalisis menggunakan analisis sidik ragam (Analysis of Variance/ANOVA) dan dilanjutkan dengan uji Jarak Berganda Duncan. Hasil penelitian menunjukkan bahwa tidak terdapat interaksi antara metode pengolahan dan waktu pemeraman terhadap kualitas nutrisi pelepah sawit. Hasil penelitian menunjukkan bahwa metode pengolahan dan lama waktu pemeraman pelepah sawit sebagai pakan ternak Kerbau Rawa (Buffelus asiaticus) sangat berpengaruh nyata (P<0,01) pada pH, kadar air, dan bahan kering dan berpengaruh nyata (P<0,05) pada protein kasar dan serat kasar. Metode pengolahan pelepah sawit secara fermentasi memberikan hasil terbaik pada penurunan pH, peningkatan kandungan protein kasar dan serat kasar serta waktu pemeraman selama 24 hari memberikan hasil terbaik pada penurunan kadar air dan peningkatan bahan kering yang menunjukkan tingginya pertumbuhan mikroorganisme pengurai dalam proses pengolahan pelepah sawit untuk meningkatkan kualitas nutrisi pelepah sawit sebagai bahan pakan ternak Kerbau Rawa (Buffelus asiaticus). Kata Kunci: Amoniasi, Fermentasi, Pelepah sawit, Silase, Waktu pemeraman.
SELEKSI INDUK KAMBING SABURAI BERDASARKAN NILAI MOST PROBABLE PRODUCING ABILITY BOBOT LAHIR DAN BOBOT SAPIH
Authors: Pratama Arif Gian , Dakhlan Akhmad , Sulastri Sulastri , Hamdani Muhammad Dima Iqbal 
Published: April 2020

Estimasi nilai Most Probable Producing Ability (MPPA) induk kambing Saburai berdasarkan kinerja keturunannya sangat penting dalam pemilihan induk kambing. Penelitian ini dilakukan untuk memilih kinerja induk kambing Saburai terbaik berdasarkan nilai MPPA menggunakan kinerja berat lahir (BL) dan berat sapih (BS) anak kambing di Unit Pelaksana Teknis Daerah (UPTD) Pusat Pembibitan Kambing, Kecamatan Gedongtataan, Kabupaten Pesawaran, Provinsi Lampung. Penelitian ini menggunakan metode survei yang dilakukan pada April-Juni 2019. Dua puluh lima induk kambing Saburai menghasilkan 34 anak pada paritas pertama dan 33 anak pada paritas kedua digunakan dalam penelitian ini. Data BL dan BS disesuaikan terhadap jenis kelamin jantan, tipe jenis kelahiran tunggal, dan umur induk. Nilai ripitabilitas diestimasi menggunakan metode korelasi antar kelas dan digunakan untuk menghitung nilai MPPA. Hasil penelitian menunjukkan bahwa rata-rata BL anak kambing pada paritas pertama dan kedua, masing-masing adalah 3,09 ± 0,42 kg dan 3,28 ± 0,54 kg, sedangkan rata-rata BS pada paritas pertama dan kedua, masing-masing adalah 17,20 ± 1,69 kg dan 17,36 ± 2,24 kg. Nilai ripitabilitas yang didapat untuk BL dan BS, masing-masing adalah 0,49±0,08 dan 0,55 ±0,06. Rata-rata nilai MPPA untuk BL dan BS, masing-masing adalah 3,19 ± 0,27 kg dan 17,28 ± 1,23 kg. Enam induk kambing Saburai (B2, B1, C1, A3, D3, dan C8) memiliki nilai MPPA BL dan BS lebih tinggi dari rata-rata nilai MPPA populasi. Keenam induk ini sebaiknya dipertahankan dalam populasi untuk meningkatkan mutu genetik kambing Saburai. Kata kunci: Berat lahir, Berat sapih, Induk Kambing Saburai, Nilai MPPA, Ripitabilitas.
PENGARUH PEMBERIAN PROBIOTIK KOMERSIL TERHADAP BOBOT TELUR, PERSENTASE ALBUMIN DAN KUNING TELUR AYAM HASIL PERSILANGAN (GRADING UP)
Authors: Sutrisna Rudy , Mayangsari Putri , Riyanti Riyanti , Nova Khaira 
Published: April 2020

Tujuan penelitian ini adalah (1) mempelajari pengaruh probiotik komersial yang berbeda terhadap berat telur, persentase albumin dan persentase kuning telur ayam petelur persilangan antara pejantan Lohman dan betina ayam kampung, (2) menentukan probiotik komersial yang dapat memberikan pengaruh terbaik pada berat telur, persentase albumin dan persentase kuning telur ayam petelur persilangan. Penelitian ini dilakukan pada Januari-Februari 2019, pemeliharaan dilakukan di Laboratorium Lapangan Terpadu Fakultas Pertanian Universitas Lampung dan pengumpulan data dilakukan di Laboratorium Produksi dan Reproduksi Ternak Jurusan Peternakan Fakultas Pertanian Universitas Lampung. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) yang terdiri dari 4 perlakuan dan 7 ulangan berupa suplementasi pada air minum (P0: tanpa probiotik, P1: suplementasi probiotik A, P2: suplementasi probiotik B, P3: suplementasi probiotik C). Penelitian ini menggunakan 28 butir telur dari 28 ekor ayam kampung persilangan umur 64 minggu dan masing-masing unit perlakuan menggunakan satu butir telur. Hasil studi ini menunjukkan bahwa suplementasi probiotik komersial yang berbeda tidak memiliki efek signifikan (P>0,05) pada berat telur, persentase albumen, dan persentase kuning telur. Simpulan penelitian ini bahwa suplementasi probiotik komersil melalui air minum tidak berpengaruh nyata terhadap bobot telur, persentase albumin dan persentase yolk telur ayam hasil persilangan (grading up) namun pemberian probiotik B menghasilkan bobot telur dan persentase yolk telur ayam hasil persilangan (grading up) lebih besar dibandingkan perlakuan lainnya. Kata kunci: Albumin, Ayam Persilangan, Bobot Telur, Kuning Telur, Probiotik komersial.
HISTOMORFOLOGI DAN DISTRIBUSI KARBOHIDRAT NETRAL PADA ESOFAGUS DAN PROVENTRIKULUS AYAM HUTAN MERAH (Gallus gallus) ASAL PULAU TIMOR
Authors: Selan Yulfia N. , Amalo Filphin A. , Maha Inggrid T. , Deta Herlina U. , Teme Aplonia B. Y. 
Published: April 2020

Ayam hutan merah merupakan salah satu satwa endemik di Pulau Timor yang telah mengalami penurunan populasi. Penelitian ini bertujuan untuk mengetahui struktur histologi dan distribusi karbohidrat netral pada esofagus dan proventrikulus ayam hutan merah (Gallus gallus). Bahan utama penelitian ini berupa potongan tiga sampel jaringan esofagus dan proventrikulus. Ayam dimatikan dengan dislokasi servikal untuk mengambil organ esofagus dan proventrikulus yang difiksasi dalam formalin 10%. Struktur histomorfologi organ diidentifikasi dengan pewarnaan hematoksilin-eosin (HE) dan distribusi karbohidrat netral dengan pewarnaan Periodic Acid Schiff (PAS). Hasil penelitian menunjukkan struktur histomorfologi esofagus terdiri empat lapisan yaitu tunika mukosa, tunika submukosa, tunika muskularis, dan tunika adventisia. Struktur histomorfologi pada proventrikulus terdiri empat lapisan, yaitu tunika mukosa, tunika submukosa, tunika muskularis, dan tunika serosa. Distribusi karbohidrat netral pada kelenjar esofagus menunjukkan reaksi positif kuat sedangkan lamina epitel serta jaringan ikat longgar di lamina propria dengan reaksi positif lemah, dan pada proventrikulus terlihat reaksi positif kuat pada sel-sel yang melapisi epitel dan rongga kelenjar tubular sederhana. Kata kunci: Ayam Hutan Merah, Esofagus, Proventrikulus, Karbohidrat netral.