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Fisheries Occasional Publication No. 150 - Response To 2024 External Review Of Integrated Stock Assessments For Key Wa Demersal Indicator Stocks, Rubie Evans-Powell, S. A. Hesp, Ainslie Denham, Emily A. Fisher, Rachel Marks, Fabian I. Trinnie, Brett Crisafulli

Fisheries Occasional Publications

In Western Australia (WA), stock assessments for key demersal species, including snapper and red emperor, have traditionally used bespoke integrated models developed in-house by the Department of Primary Industries and Regional Development (DPIRD). In line with other Australian jurisdictions, DPIRD is transitioning to Stock Synthesis (SS) as its primary platform for integrated stock assessments of WA finfish. To support this transition, DPIRD commissioned an independent expert review of recent integrated models applied to three demersal stocks. This publication responds to recommendations from Professor André Punt (University of Washington and CSIRO) in his 2024 review, which examined assessments for Pilbara red …

Beta-Casomorphin7 Detection In Milk From Dairy Species And Beta-Casein Protein Characterization In Cattle From Selected Provinces In The Philippines, Angelo M. Tapia, Maria Cynthia R. Oliveros, Queennie Hope D. Umipon, Hazel Marie E. Nicolas, Naoya Ogawa, Yasuyuki Kitaura

The Philippine Agricultural Scientist

This study was conducted to detect β-casomorphin7 (BCM7) in dairy animals and to characterize the β-casein (CSN2) genotype among dairy cattle breeds in the Philippines. A total of 59 dairy animals, composed of 35 cattle (12 Holstein Sahiwal [HS16 Jersey × Holstein Friesian [JHF], and 7 Siquijor Native Cattle [SNC]), 15 buffaloes (Bulgarian Murrah and Brazilian Murrah), and 9 goats (Saanen and Anglo-Nubian) were collected with milk samples. Milk protein was extracted and subjected to high-performance liquid chromatography–tandem mass spectrometry (HPLC–MS/MS) analysis after stimulated gastrointestinal digestion. BCM7 was detected in cattle with an average concentration of 0.322 + 0.080, whereas …

Beta-Casomorphin7 Detection In Milk From Dairy Species And Beta-Casein Protein Characterization In Cattle From Selected Provinces In The Philippines, Angelo M. Tapia, Cynthia R. Oliveros Maria, Queennie Hope D. Umipon, Hazel Marie E. Nicolas, Naoya Ogawa, Yasuyuki Kitaura

The Philippine Agricultural Scientist

This study was conducted to detect β-casomorphin7 (BCM7) in dairy animals and to characterize the β-casein (CSN2) genotype among dairy cattle breeds in the Philippines. A total of 59 dairy animals, composed of 35 cattle (12 Holstein Sahiwal [HS16 Jersey × Holstein Friesian [JHF], and 7 Siquijor Native Cattle [SNC]), 15 buffaloes (Bulgarian Murrah and Brazilian Murrah), and 9 goats (Saanen and Anglo-Nubian) were collected with milk samples. Milk protein was extracted and subjected to high-performance liquid chromatography–tandem mass spectrometry (HPLC–MS/MS) analysis after stimulated gastrointestinal digestion. BCM7 was detected in cattle with an average concentration of 0.322 + 0.080, whereas …

Spatial And Temporal Variability Of Mayfly Communities (Insecta: Ephemeroptera) In Mountainous And Semimountainous Rivers Of The Western Aegean Basin, Biljana Rimcheska, Yanka Vidinova

Turkish Journal of Zoology

Mayflies are among the most abundant benthic invertebrates inhabiting natural lotic  freshwater systems. Their assemblages vary with environmental, geographical, and  hydrological conditions along altitudinal gradients and under different types of  watershed disturbance. The main objective of this study was to analyze the  composition and β-diversity of mayflies across three river watersheds and to assess  how these assemblages differ among them. We collected biological and  environmental data from 38 sampling sites distributed across the three river  watersheds. We hypothesized that mayfly assemblages would vary with  environmental gradients on both spatial and temporal scales; specifically, we  expected pristine streams to exhibit higher …

Cover And Contents

Turkish Journal of Veterinary & Animal Sciences

No abstract provided.

Comparison Of The Mars And Xgboost Algorithms For Predicting Body Weight In Kalahari Red Goats, Louis Thobela Tyasi, Cem Tirink, Kwena Mokoena, Hasan Önder, Uğur Şen, Demet Çanga Boğa, Tolga Tolun, İsmai̇l Gök, Yüksel Aksoy, Lütfi̇ Bayyurt, Ömer Faruk Yilmaz

Turkish Journal of Veterinary & Animal Sciences

Estimating goat body weight from morphometric traits is essential for growth monitoring, health management, and welfare. Accurate weight informs nutrition, clinical interventions, and mating decisions. In this study, the MARS and XGBoost algorithms were used to estimate the live weight of Kalahari Red goats based on body measurements. A dataset containing body length (BL), birth type (single, twin, or triplet), withers height (WH), rump height (RH), and heart girth (HG) information for 200 goats was used in the training and testing of the models. The performances of the models were evaluated with the goodness-of-fit criteria. XGBoost showed a performance of …

Determination Of Cortisol Concentrations Using Different Biomarkers In Dairy Goats During Pregnancy, Fatma Mi̇ra Güven, Erkan Pehli̇van

Turkish Journal of Veterinary & Animal Sciences

Pregnancy is considered one of the most physiologically stressful periods in mammals. In the present study, serum and hair cortisol concentrations were measured in nine female Akkeçi goats, including five primiparous (1.5 years old) and four multiparous (3.5 years old), to evaluate chronic stress during pregnancy. Hair samples were collected in October, November, and December following the introduction of bucks to the herd and within the first 12 h postpartum (corresponding to the 1st, 2nd, 3rd, and 7th sampling times). Hair samples were not collected in January, February, or March (the 4th, 5th, and 6th sampling times) due to insufficient …

Effects Of Zinc-Reinforced Clinoptilolite On Hematological Parameters, Igg Levels, And Enzyme Histochemistry In Fattening Lambs, İhsan Kisadere, Muhi̇tti̇n Zengi̇n, Özkan Demi̇rbaş, Mehmet Faruk Aydin

Turkish Journal of Veterinary & Animal Sciences

The study aimed to determine the effects of zinc-reinforced clinoptilolite supplementation to the diet on selected hematological parameters, serum immunoglobulin G (IgG) concentrations, and enzyme histochemical characteristics in fattening lambs. For this purpose, 40 healthy male lambs were randomly allocated into five equal groups: control (C; n = 8), natural clinoptilolite (NC; n = 8), zinc (ZN; n = 8), natural clinoptilolite plus zinc (NCZN; n = 8), and zinc-reinforced clinoptilolite (ZNRC; n = 8). All animals were housed in individual pens, and the supplementation period continued for 42 days. Blood samples were collected before the trial (day 0) and …

Effect Of Feeding Levels With High Micronutrients On The Reproductive Performance And Plasma Progesterone Concentration In Early Gestation Sows, Kewalin Kongngern, Liang-Chou Hsia, Shu-Ping Su, Wantamas Jantasin, Jai-Wei Lee

The Thai Journal of Veterinary Medicine

This experiment investigated the effect of feeding levels with high micronutrients on the reproductive performance and plasma progesterone concentration in early gestation sows. Thirty-six first-parity sows (Landrace × Yorkshire × Duroc), with an initial average body weight of 160.85 kg, were randomly allocated to four dietary treatments during early gestation: Treatment 1) fed 1.5 kg/day (days 1-30), Treatment 2) fed 1.5 kg/day with 1.7 times the vitamins and minerals (total vitamin E 150 IU) (days 1-15) and fed 1.5 kg/day (days 16-30), Treatment 3) fed 1.5 kg/day with 1.7 times the vitamins and minerals (total vitamin E 150 IU) (days …

Conditioned Feed Aversion As A Means Of Conditioning Livestock To Avoid Consuming Toxic Plants Growing In South Africa : An Overview, Leendert D. Snyman, Frederick D. Provenza

Poisonous Plant Research (PPR)

Significant economic losses to the livestock industry are caused by the ingestion of toxic plants in South Africa, among which the most dangerous ones are Moraea pallida (geeltulp), Urginea/Drimea sanguinea (rooislangkop), Senecio latifolius (Staggers Ragwort), and Geigeria ornativa (vermeerbos). Conditioned feed aversion is a potential means to address this issue. Treating animals with an aversive substance along with an extract of the sensory characteristics of a specific plant conditions animals to avoid the plant. Geigeria ornativa, unlike the other three plants, is non-aversive. Following treatment for aversion, the induced aversion fades with time and eventually breaks down. Continuous exposure …

A Case Study Of Suspected Sheep Losses Due To Chokecherry Not Death Camas, Kevin D. Welch, Clint A. Stonecipher, Stephen T. Lee, Daniel Cook, Benedict T. Green

Poisonous Plant Research (PPR)

Death camas (Zigadenus paniculatus) is a toxic plant often associated with poisoning cases in livestock, especially in sheep, in the spring on mountain foothills. Consequently, when sheep are found dead in mountain foothills, and death camas is present, it is often implicated as the potential cause of death. However, this may be over simplistic as there may be other plants that may also contribute to, or are the cause of, death in sheep. In this study, we present a case of approximately 200 sheep out of a band of 400 that died within 24 hours of beginning to …

Metagenomic Insights Into Antimicrobial Resistance In Small-Scale Poultry And Cattle Farms, Elijah Ayilaran, Agnes Kilonzo-Nthenge Agnes Kilonzo-Nthenge

Food and Animal Sciences Faculty Research

Antimicrobial resistance (AMR) poses a critical challenge to global health, with food animal production systems recognized as significant reservoirs of antimicrobial-resistant bacteria. This study evaluated the prevalence and distribution of antimicrobial resistance genes (ARGs) and virulence factors (VFs) across small-scale poultry and cattle farms. A total of 468 samples (soil, feces, water, and natural land soil) were collected from four farms and analyzed using shotgun metagenomics. Proteobacteria (34.91%) were the dominant phylum across environments, followed by Cyanobacteria (15.67%), Actinobacteria (14.95%), Firmicutes (10.57%), and Bacteroidetes (8.69%). Tetracycline (33.41%) and beta-lactam (30.30%) resistance genes were the most abundant, with macrolide (9.32%) and …

Mitigating Salmonella In Poultry Using Probiotics: Mechanisms, Challenges, And Opportunities, Oluwaseun D. Adeyemi, Samuel N. Nahashon

Food and Animal Sciences Faculty Research

The global poultry industry continues to face significant challenges due to Salmonella infections, which pose severe public health concerns and economic losses. Recently, the reemergence of antimicrobial resistance has led to the restriction of antibiotic use in poultry, especially as growth promoters, thus accelerating the search for sustainable alternatives. Among these, probiotics have gained attention as potential candidates for improving poultry health and mitigating Salmonella colonization in the gut. This review summarizes the key mechanisms through which probiotics exert anti-Salmonella effects, including competitive exclusion, production of antimicrobial substances, reinforcement of the intestinal barrier, and modulation of host immune responses. Commonly …

To Hold Or Sell Breeding Cattle In The Rangelands, Department Of Primary Industries And Regional Development, Western Australia

Animal production and livestock factsheets

In a dry season where feed, water and finances are limited, removing less productive animals as soon as possible is a good option. This will free up feed for more productive animals and help preserve ground cover.

This page provides some of the information and a process for making decisions about holding or selling breeding cattle.

Anthelmintic Efficacy Of Rosemary Oil And Its Nanoemulsion Against The Monogenean Parasite, Zeuxapta Seriolae, In Yellowtail Kingfish (Seriola Lalandi), Md Reaz Chaklader, Lindsey Woolley, Hosna Gholipour-Kanani, Masashi Maita, Gavin Partridge

Fisheries Research Articles

This study evaluated the anthelmintic efficacy of rosemary oil delivered as a nanoemulsion compared with regular rosemary oil against the monogenean parasite Zeuxapta seriolae in yellowtail kingfish (YTK; Seriola lalandi). A 20-day feeding trial tested three dietary treatments: two levels of regular rosemary oil (providing 0.85 and 1.7 g cineole·kg−1 feed) and a rosemary-oil nanoemulsion (providing 0.85 g cineole·kg−1 feed), against a control diet without rosemary oil. Juvenile fish (293 ± 5 g) were pre-exposed to Z. seriolae oncomiracidia before the trial, resulting in an initial mean parasite abundance of 97 ± 4 per fish. At trial completion, plasma …

Association Of Hair Shedding Level With Cow–Calf Performance In Summer-Bred Dexter Cattle, Ichard Browning Jr, Emily G. Hayes, Kaylee S. Hillin, Maria Lenira Leite-Browning

Food and Animal Sciences Faculty Research

Reduced winter hair shedding in beef cows through the spring and summer months may contribute to heat stress and reduced performance in spring-calving herds. This study evaluated the relationship of hair shedding with the fertility and maternal performance of 72 Dexter cows. Hair shedding data for 20 May, 3 June, 17 June, and 1 July in 2019 were used to classify cows as high or low hair shedders. Hair shedding levels were lower (p < 0.05) for 2-year-old cows than for cows 7+ years of age for the first three dates and lower (p ≤ 0.05) for lactating cows than for dry cows on the first two dates. Concurrent and four years of historical performance records were used to assess the associations between hair shedding and cow–calf performance. Data from 230 natural matings in July and August from 2015 to 2019 were analyzed. Birth to weaning weight data were recorded from 2016 to 2019 on 124 spring-born calves. Cow fertility was higher (p < 0.05) for high-shed cows than for low-shed cows for the 1 July classification. When the records from cows that were dry in 2019 were excluded from testing, fertility was higher (p < 0.05) for high-shed cows than for low-shed cows at all four scoring dates. The associations of cow hair shedding levels with preweaning calf performance were minimal. Dexter cows exhibiting higher hair shedding levels in the spring and summer expressed higher summer fertility.

Effect Of Corn Flour Addition On The Physical And Chemical Quality Of Wedelia Trilobata (L) Hitchc Weed Silage For Ruminant Livestock Feed, Ajat Sudrajat, Retno Galuh Syaharani, Nur Rasminati, Wahyu Candra Saputra, Niken Astuti, Raden Febrianto Christi, Fazhana Ismail

Jurnal Ilmu Ternak Universitas Padjadjaran

Research on the physical and chemical quality of weed silage with the addition of corn flour has been carried out. The research was carried out on November 30, 2024 – February 25, 2025 at the Animal Nutrition Laboratory of the Animal Husbandry Study Program, Mercu Buana Yogyakarta University and the Chem-Mix Bantul laboratory, Yogyakarta. The study used an experimental method with a complete random design (RAL) in a unidirectional pattern using 4 treatments, namely P0 (no treatment), P1 (1% corn flour), P2 (3% corn flour) and P3 (5% corn flour), then each treatment was replicated three times. In each treatment, …

Effects Of 1,25-Dihydroxyvitamin D3 Supplementation On Performance Of 60-Week-Old Layers, Edgen Geñoso, Listya Purnamasari, Joseph Olarve, Joseph Dela Cruz

Jurnal Ilmu Ternak Universitas Padjadjaran

The effects of 1,25 dihydroxyvitamin D3 supplementation on egg production, percent hen house, percent hen day, mortality rate and egg size on 60-week-old laying hens were studied. There were 5 treatment groups of layer hens where Treatment 1 served as control supplemented with commercial feed without vitamin D3, Treatment 2 as positive control supplemented with commercial feed and vitamin D3 HyD, which was already used by the poultry farm, Treatment 3 supplemented with commercial feed and Active D at an inclusion rate of 75 ppm per ton of feeds, Treatment 4 supplemented with commercial feed and Active D at an …

Evaluasi Potensi Pakan Serat Dan Daya Dukung Untuk Pengembangan Ternak Ruminansia Di Wilayah Kabupaten Subang (Evaluation Of Forage And Agricultural Waste Potencies, Its Carring Capacity To Ruminant Developments In Subang), U Hidayat Tanuwiria, A. Budiman, B Ayuningsih

Jurnal Ilmu Ternak Universitas Padjadjaran

Penelitian ini dilaksanakan di Kabupaten Subang. Penelitian bertujuan untuk mengetahui

potensi rumput dan pakan serat limbah asal tanaman pangan serta daya dukungnya untuk pengembangan ternak ruminansia di wilayah Kabupaten Subang. Penelitian ini bersifat eksploratif melalui analisis data primer dan sekunder. Data sekunder berupa data tataguna lahan, populasi ternak, produksi dan luas lahan pertanian. Data tersebut diperoleh dari Badan Pusat Statistik Kabupaten Subang. Hasil penelitian adalah sebagai berikut : (1) Potensi pakan di

Kabupaten Subang adalah 390.282 ton BK/tahun yang terdiri atas ton 61.585 BK.tahun-1 asal rumput dan 328.697 ton BK.tahun-1 asal limbah tanaman pangan. (2) Daya dukung pakan terhadap populasi …

Nighttime Or Daytime? How Milk Melatonin Levels Relate To Differential And Somatic Cell Count In Dairy Cow Milk, Eleonora Dall'olio, Claudio Cipolat-Gotet, Melania Andrani, Valeria Cavalli, Giovanni Ferri, Mario Baratta, Roberta Saleri, Fabio De Rensis

The Thai Journal of Veterinary Medicine

This study investigates the impact of winter nighttime versus daytime milking on melatonin concentration in milk and explores its relationship with somatic cell count (SCC) and differential somatic cell count (DSCC). Milk samples were collected from 40 Holstein cows at 12-hour intervals (04:00 AM Night samples and 04:00 PM Day samples) during the winter season (11 h of light and 13 h of darkness). The relationship between melatonin content, SCC and DSCC was assessed. Night milk had significantly higher melatonin levels (15.63 ± 1.90 pg/mL) compared to day milk (6.80 ± 0.75 pg/mL). SCC was significantly lower in night milk …

Effect Of Dietary Chitosan Oligosaccharide Levels And Molecular Weight With Deacetylation Degree Characteristics On Peptide Transporter 1 Gene Expression In Weaning Pig’S Small Intestine, Boonrit Thongsong, Sarinee Kalandakanond-Thongsong, Rath Pichyangkura

The Thai Journal of Veterinary Medicine

The present study aimed to assess the expression response of peptide transporter1 (PepT1) mRNA (SLC15A1) in weaning pig’s small intestine to the effect of dietary chitosan oligosaccharide (COS) supplement level, molecular weight (MW) and deacetylation degree (DD) characteristics. On days 28 and 56 of the experiments, small intestine samples obtained from our previous two experiments on weaned pigs were used to study the PepT1 mRNA expression. In experiment 1, pigs received either a basal diet or a basal diet supplemented with 75, 150, or 225 mg/kg COS. In experiment 2, pigs received either a basal diet or a basal diet …

Pengaruh Suplemen Zn-Proteinat, Cu-Proteinat Dan Kompleks Ca-Minyak Ikan Dalam Ransum Berbasis Pucuk Tebu Amoniasi Terhadap Performans Domba Jantan Persilangan Priangan X Barbados, U. Hidayat Tanuwiria, Budi Ayuningsih

Jurnal Ilmu Ternak Universitas Padjadjaran

Penelitian ini bertujuan mempelajari pengaruh suplemen Zn-Proteinat, Cu-Proteinat dan Ca-Minyak dalam ransum berbasis pucuk tebu diamoniasi terhadap pertumbuhan dan efisiensi ransum pada domba jantan persilangan Priangan x Barbados. Percobaan dilakukan terhadap 5 ekor domba jantan yang sedang tumbuh dengan menggunakan rancangan Bujur Sangkar Latin (BSL) 5x5,  lima macam ransum yaitu R1 = campuran 50% pucuk tebu amoniasi + 50% konsentrat, R2 = R1 + 2% Zn-proteinat, R3 = R1 + 2% Cu-proteinat, R4 = R2 + 2% Cu-proteinat, dan R5 = R4 + Ca-minyak ikan. Hasil yang diperoleh menunjukkan bahwa pemberian Zn-proteinat, Cu-proteinat dan komplek  Ca-minyak tidak mempengaruhi konsumsi ransum, …

Potensi Pakan Serat Dan Daya Dukungnya Terhadap Populasi Ternak Ruminansia Di Wilayah Kabupaten Garut, U. Hidayat Tanuwiria, A. Yulianti, A. Mushawwir

Jurnal Ilmu Ternak Universitas Padjadjaran

Penelitian ini bertujuan untuk mempelajari potensi pakan asal limbah tanaman pangan dan daya dukungnya terhadap populasi ternak ruminansia di wilayah kabupaten Garut. Penelitian dilakukan dengan cara survey dan pengumpulan data sekunder.  Hasil penelitian menunjukkan bahwa Potensi pakan asal rumput alam dan jerami asal limbah tanaman pangan di seluruh wilayah kabupaten Garut adalah 414.211,1 ton bahan kering (BK) yang terdiri atas 151.395,6 ton BK asal rumput dan 262.815,5 ton BK asal limbah tanaman pangan. Daya dukung pakan terhadap populasi ternak adalah 124.706 satuan ternak (ST), yang terdiri atas 45.580,5 ST ternak ruminansia kecil dan 79.125,5 ST ternak ruminansia besar.

Kata Kunci …

Potensi Pakan Asal Limbah Tanaman Pangan Dan Daya Dukungnya Terhadap Populasi Ternak Ruminansia Di Wilayah Sumedang (Agriculture By Product As Potential Feed And Its Carrying Capacity In Sumedang), U. Hidayat Tanuwiria, N. Mayasari, A. Yulianti

Jurnal Ilmu Ternak Universitas Padjadjaran

Penelitian ini bertujuan untuk mempelajari potensi pakan asal limbah tanaman pangan dan daya dukungnya terhadap populasi ternak ruminansia di wilayah kabupaten Sumedang. Penelitian dilakukan dengan cara survey dan pengumpulan data sekunder.  Hasil penelitian menunjukkan bahwa Potensi pakan asal rumput alam dan jerami asal limbah tanaman pangan di seluruh wilayah kabupaten Sumedang adalah 284.784,72 ton bahan kering (BK) yang terdiri atas 86.937,65 ton BK asal rumput dan 197.847,07 ton BK asal limbah tanaman pangan. Daya dukung pakan terhadap populasi ternak adalah 85.739,79 satuan ternak (ST), yang terdiri atas 26.174,21 ST ternak ruminansia kecil dan 59.565,58 ST ternak ruminansia besar. Potensi protein …

Pengaruh Tepung Cangkang Rajungan (Portunus Pelagicus) Sebagai Sumber Kitin Dalam Ransum Terhadap Kandungan Lemak Feses Dan Efisiensi Pakan Tikus Putih (Rattus Norvegiccus) Strain Wistar (The Effect Of Crabs Shells (Portunus Pelagicus) As A Source Of Chi, Muhamad Fatah Wiyatna, Irba U. Warsono, Aminuddin Parakkasi

Jurnal Ilmu Ternak Universitas Padjadjaran

Cangkang rajungan mengandung kitin yang persentasenya paling besar berupa polisakarida. Kitin dan derivat-derivatnya telah banyak digunakan dalam berbagai keperluan terutama untuk kesehatan. Penelitian ini dilakukan dengan tujuan untuk mengetahui pengaruh pemberian tepung rajungan sebagai sumber kitin terhadap efisiensi pakan dan kandungan lemak feces tikus putih Rattus norvegicus) strain Wistar. Penelitian menggunakan rancangan acak lengkap pola faktorial 2x5 dengan tiga kali ulangan. Faktor pertama adalah jenis kelamin dan kedua level tepung rajungan yaitu 0%, 5%, 10%, 15%, and 20%. Hasilnya penelitian menunjukkan tidak ada interaksi antara jenis kelamin dengan kandungan teung rajungan dalam ransum. Kandungan lemak dalam feces tertinggi diperoleh …

Non-Invasive Monitoring Of Camel Hair From A Free-Grazing Herd As A Biomarker In Linking Environmental Exposure And Nutritional Status In Desert Ecosystems, Ibrahim Albokhadaim

The Thai Journal of Veterinary Medicine

Camels are vital livestock in arid regions, yet their elemental exposure remains underexplored, particularly through non-invasive biomarkers. This study is novel in applying camel hair as a non-invasive, long-term biomarker to assess nutritional adequacy and environmental exposure in a free-grazing desert herd, with age-stratified evaluation of essential and toxic element accumulation. For this purpose, a cross-sectional study was conducted on a herd of 18 apparently healthy camels (≤6 months: 28%; >6 months: 72%). Initially, hair samples were collected, washed, digested, and analyzed using inductively coupled plasma mass spectrometry (ICP-MS). The samples were then analyzed to determine the concentrations of 12 …

The Role Of Exotic Plants In The Diet Of Black-And-White Colobus Monkeys (Colobus Guereza) In Kibale National Park, Uganda, Michelle Gaykov

Theses and Dissertations

Exotic plants have both positive and negative impacts on their environment. They may act as additional food sources for the local fauna or as competition for local flora or leading to changes within a landscape or ecosystem. To considere the role of exotics in primate diet, this study focused on the dietary role of exotic plant species in the diet of a leaf-eating foregut fermenting monkey, the black-and-white colobus monkeys (Colobus guereza) in Kibale National Park, Uganda. Int this study, I followed individuals in two groups of black-and-white colobus monkeys for 21 days recording their food intake (0700-1900). I also …

Genetic Determinants Associated With Persistence Of Listeria Species And Background Microflora From A Dairy Processing Environment, Vaishali Poswal, Sanjeev Anand, Jose L. Gonzalez-Hernandez, Brian Kraus

Dairy Science and Food Science Faculty Publications: 2022 to Present

Listeria monocytogenes is a persistent foodborne pathogen capable of surviving in food processing environments, often in association with diverse environmental microflora. This study examines genomic determinants of persistence, specifically stress adaptation and biofilm-associated traits, in environmental Listeria species and other environmental microflora from a dairy processing facility by analyzing whole-genome sequences of 6 environmental Listeria isolates, 4 ATCC reference strains, and 22 air and floor swab cultures, annotated using the RAST platform. Subsystem analysis revealed that Listeria isolates carried a defined set of genes linked to biofilm formation, antimicrobial resistance, and stress response, though in lower abundance than environmental cultures. …

Behavior Of A Komodo Dragon In Relation To Whole-Prey Feeding, Gurkiran Kaur Natt

Williams Honors College, Honors Research Projects

In zoological settings, whole-prey feeding is an enrichment strategy widely used to prompt naturalistic behaviors; yet, the specific behavioral shifts this causes in reptiles are not well-documented. This study focused on the activity budgets and spatial use of a six-year-old male Komodo dragon (Varanus komodoensis) housed at the Akron Zoo, analyzing his movements in direct response to whole-prey feeding sessions. Over an eight-week observation period, instantaneous scan sampling was utilized to quantify behaviors before and after two distinct whole-prey feeding sessions. Although active behaviors and "not visible" instances increased marginally post-feeding, paired t-tests confirmed these shifts were not statistically significant …

Evaluating Cow/Calf And Stocker Performance When Grazing Sudangrass With And Without Sunnhemp, Shelby L. Davis-Jenkins, Daren D. Redfearn, Mary E. Drewnoski

Nebraska Beef Cattle Reports

Summary with Implications

Sudangrass can provide high-quality summer forage, supporting cow/calf pairs and growing cattle. In this study, sudangrass or a sudangrass–sunnhemp mix was grazed over two years by cow/calf pairs and heavy stockers (~880 lb). There was no difference in carrying capacity between forage types. Sunnhemp inclusion had no effect on cow body condition or nursing calf gain. Cows maintained condition through peak lactation, and nursing calves gained 2.27 lb/day. Stockers gained 1.56 lb/day on sudangrass alone and 1.73 lb/day on the mix. However, the added seed cost of sunnhemp increased the cost of gain in year 1 and …