Animal Sciences Commons^™

Limb Regeneration After Multiple Autotomy And Coxae Removal In The Blue Crab Callinectes Sapidus, Jennifer Ambler

OES Theses and Dissertations

This study investigated limb regeneration in the juvenile blue crab, Callinectes sapidus, specifically the role of the coxa and pedal nerve innervation of the regenerative limb bud over time. The coxa is a leg segment that has been defined as the source of positional, cellular, and neuronal information needed for limb regeneration in brachyuran crabs. This study indicates that removal of coxae under regenerative and non-regenerative conditions did not deter limb regeneration. The coxa is not the exclusive location of limb regenerative information since limbs re-grew with normal positional and functional arrangement in 86% of crabs showing regeneration at removal …

Sheep Updates 2007 - Part 5, Bindi Murray, John Karlsson, Johan Greeff, Carolina Viñoles Gil, B. L. Paganoni, K. M. M. Glover, J. T. B. Milton, G. B. Martin, Hugh Dove, Bill Mckiernan, John Wilkins, Paul Greenwood, Linda Cafe

Sheep Updates

This session covers six papers from different authors:

GENETIC IMPROVEMENT

1. Breech Strike Resistance: Selecting for resistance traits reduces breech strike, Bindi Murray, John Karlsson, Johan Greeff, Department of Agriculture and Food, Western Australia

2. Breeding Merino Sheep for Worm Resistance increases profit in a Mediterranean Environment, John Karlsson and Johan Greeff Department of Agriculture and Food, Western Australia

FEEDING

3. Embryo lasses were not increased when Merino ewes that had lost weight were supplemented with lupins, C. Viñoles Gil, B.L. Paganoni, K.M.M. Glover, J.T.B. Milton & G.B. Martin, School of Animal Biology, Faculty of Natural and Agricultural Sciences, …

Age, Growth, And Fecundity Of Alabama Shad (Alosa Alabamae) In The Apalachicola River, Florida , Travis Ingram

All Theses

Age and growth of Alabama shad Alosa Alabamae were estimated by examining scales and otoliths from 203 adult fish collected on their spawning run in the upper Apalachicola River from 2005 and 2006. Ages of Alabama shad ranged from 1 - 4 years. Scales and otoliths both gave similar age estimates. Age distributions from this study differed from those of previous studies for both males and females. Female Alabama shad, on average, were found to be larger than males at age 2 and age 3. Alabama shad demonstrated a positive correlation of length to fecundity, with fecundity estimates ranging from …

Influence Of Visible Implant Fluorescent Elastomer (Vie) Tagging On Growth, Molting And Survival Of The Eastern White River Crayfish, Procambarus Acutus Acutus (Girard, 1852), Yavuz Mazlum

Turkish Journal of Zoology

Tag retention, growth, molting, and survival of crayfish, Procambarus acutus acutus, 35-37 mm in total length were evaluated between tagged and untagged groups. There were no significant differences in molting and survival between the tagged and untagged groups (P > 0.05). Tag retention was 100% for crayfish kept individually in plastic containers for the 60-day experimental period. The tagged group had a mean growth of 7.0 mm (molts only) while the untagged group had a mean growth of 4.0 mm (molts only). Molting rates were similar between the tagged and untagged groups. Nine molts were observed each in the tagged (n …

Food Utilisation In A Laboratory Colony Of The Giant African Land Snail, Archachatina Marginata (Swainson) (Pulmonata: Achatinidae), Rosemary I. Egonmwan

Turkish Journal of Zoology

This study investigates food consumption by juveniles and adults of the edible giant land snail Archachatina marginata under laboratory conditions. In one experiment, the snails were fed weekly from hatching for 13 months with weighed amounts of lettuce (Lactuca sativa), carrot (Daucus carota), potato (Solanum tuberosum), apple (Malus pumila), and calcium. Another group of 2-month-old A. marginata ovum was fed singly for 3 days on each of the test food items. The results show that, when given a choice, A. marginata can select from the 4 types of food and calcium. When given no choice, lettuce provided high digestibility and …

Growth And Mortality Of The Brown Trout (Salmo Trutta L.) Population From Upper Aksu Stream, Northeastern Anatolia, Turkey, Murat Arslan, Ayhan Yildirim, Serdar Bektaş, Ali̇ Atasever

Turkish Journal of Zoology

Age, sex, mortality, and growth characteristics of brown trout (Salmo trutta) from the upper Aksu Stream were investigated. Females and males comprised 52.13% and 47.87% of the population, respectively. Age ranged from 1 to 8. The fork length (L) and total weight (W) were 5.7-22.8 cm and 2.9-142.6 g, respectively. Length-weight relationships were W = 0.015 x L^{2.939}, W = 0.015 x L^{2.928}, and W = 0.015 x L^{2.932} for females, males, and overall, respectively. The estimated von Bertalanffy growth parameters were L_{infinity} = 33.27 cm, K = 0.107 y^{-1}, and t_0 = -1.046 y for females; L_{infinity} = 29.50 …

The Use Of Hazelnut Meal As A Substitute For Soybean Meal In The Diets Of Rainbow Trout (Oncorhynchus Mykiss), Özlem Bi̇lgi̇n, Ali̇ Türker, Ahmet Adem Teki̇nay

Turkish Journal of Veterinary & Animal Sciences

Hazelnut meal as a substitute for soybean meal in extruded feeds of rainbow trout was investigated. The performance of extruded feeds containing hazelnut meal as a substitute for 20% of soybean meal (Diet 2) and 30% of soybean meal (Diet 3) was compared to a nutritionally balanced control (Diet 1) (a commercial trout feed formulation). Each diet was fed to 3 replicate groups (initial BW: 36 ± 1.37 g; mean ± SD); the fish were fed the equivalent of 2% of their body weight, 2 times daily (0800 and 1600) for 64 days at 15 ± 0.11 °C under a …

Age Structure And Reproductive Activity Of The Blue Sucker In The Milk River, Missouri River Drainage, Montana, Julie Bednarski, Dennis L. Scarnecchia

The Prairie Naturalist

The life history and ecology of the blue sucker (Cycleptus elongatus) in the lower Milk River, Montana were investigated in 2002 and 2003. A total of 253 blue sucker was captured; 248 adult fish, three larval fish, and two age-0 juveniles. The ages (n = 102) of the adult blue sucker ranged from 10 to 37 years; maximum age greatly exceeded ages reported in other studies. Blue sucker in the Milk River population grew slower, matured later, and lived longer than fish at lower latitudes. Adult females of the blue sucker were longer and weighed more than …

Sheep Updates 2006 - Part 2, Darryl Smith, Kathryn Kemper, David Rutley, R. R. Woolaston, D. J. Brown, K. D. Atkins, A. E. Casey, A. J. Ball, David Hopkins, David Stanley, Leonie Martin, Arthur Gilmour, Remy Van De Ven, Geoff Duddy, Steve Semple, David Kessell, Andrew Thompson

Sheep Updates

This session covers six papers from different authors:

GENETICS

1. Novel selection traits - what are the possible side effects?, Darryl Smith, Kathryn Kemper, South Australian Research and Development Institute, David Rutley, University of Adelaide.

2. Genetic Changes in the Australian Merino since 1900, Sheep Genetics Australia Technical Committee, R.R. Woolaston Pullenvale, Queensland, D.J. Brown, Animal Genetics and Breeding Unit*, University of New England, K.D. Atkins, A.E. Casey, NSW Department of Primary Industries, A.J. Ball, Meat and Livestock Australia, University of New England

3. Influence of Sire Growth Estimated Breeding Value (EBV0 on Progeny Growth, David Hopkins, David Stanley, Leonie …

Bovine Respiratory Disease In Feedlot Cattle: Environmental, Genetic, And Economic Factors, G. D. Snowder, L. Dale Van Vleck, L. V. Cundiff, G. L. Bennett

Department of Animal Science: Faculty Publications

The objective of this study was to characterize genetic, environmental, and economic factors related to the incidence of bovine respiratory disease (BRD) in feedlot calves. Records from 18,112 calves representing 9 breeds (Angus, Braunvieh, Charolais, Gelbvieh, Hereford, Limousin, Pinzgauer, Red Poll, and Simmental) and 3 composite types (MARC I, MARC II, and MARC III) over a 15-yr period (1987 to 2001) were evaluated. Disease incidence was observed and recorded by station veterinary and technical staff. The incidence of BRD varied across years, with the annual observed incidence ranging from 5 to 44%. From 1987 to 1992, the annual average incidence …

Shearing Lambs Improves Growth Performance During Periods With Elevated Thermal Load, Jake J. Herrig, Simone M. Holt, J.A. Daniel

South Dakota Sheep Research Reports, 2006-07

The purpose of this study was to determine if average daily gain (ADG) is improved in shorn lambs versus non-shorn lambs in the summer months in the upper Midwestern United States. Forty-nine purebred Hampshire and Columbia ram (n = 10 Hampshire and 4 Columbia) and ewe (n = 22 Hampshire and 13 Columbia) lambs were grouped by breed, sex, age (104 ± 1.7 days of age), and initial weight (109 ± 3.5 lbs) into shorn (n=26) and non-shorn (n=23) groups. After shearing (3 June 2004), shorn sheep had approximately 0.1 inches of wool-cover. Lambs were weighed 1, 29, and 57 …

Effects Of Feeding Frequency On Growth, Feed Consumption, And Body Composition In Juvenile Turbot (Psetta Maxima Linnaeus, 1758) At Low Temperature, Ali̇ Türker

Turkish Journal of Veterinary & Animal Sciences

Juvenile turbot Psetta maxima (Linnaeus, 1758) (15.23 ± 2.99 g) were fed to satiation with a commercial extruded feed over a 60-day period. Feeding regimens were twice a day (TD), every other day (EOD), and 2-day intervals (TDI). Fish were kept in seawater (18 ppt) at 5-7.5 °C from January 21 to March 23, 2004. Feed conversion rate (FCR) and the protein efficiency ratios (PER) were within the ranges of 1.12-1.14 and 2.26-2.29, respectively. While the maximum relative growth rate (RGR), weight gain, and specific growth rate (SGR) were recorded in the TD group, they were lower in the EOD …

Growth And Reproduction Of Por's Goatfish (Upeneus Pori Ben-Tuvia & Golani, 1989) In İskenderun Bay, The Eastern Mediterranean, Ali̇ İşmen

Turkish Journal of Zoology

The age composition, growth parameters, spawning season, sex ratio, length at first sexual maturity and fecundity of por's goatfish (Upeneus pori) caught from the Bay of İskenderun in the eastern Mediterranean Sea were investigated. Females and males made up 52.6% and 47.4%, respectively, of the particular population of the species. The total length of females ranged from 7.0 cm to 17.0 cm, and of males from 6.6 cm to 15.1 cm. The length (L) - weight (W) relationships for males and females were estimated as W = 0.0108*L^{2.99} and W = 0.0097*L^{3.03}, respectively. The age data derived from otolith readings …

Age, Growth, And Sex Ratio Of Golden Grey Mullet, Liza Aurata (Risso, 1810) In Homa Lagoon (İzmir Bay, Aegean Sea), Akin Türker İlkyaz, Kürşat Firat, Şahi̇n Saka, Hasan Tuncay Kinacigi̇l

Turkish Journal of Zoology

In this study, age, growth, and sex ratio of 342 golden grey mullets, which were caught in fish traps during fishing season were determined. The samples were between 7.5 and 39.5 cm in length and were between < 1 and 4 years old. The length-weight relationship for this population was calculated as W = 0.01*L^{2.93}, L_{\infinity} = 43.2 cm, K = 0.33 yr^{-1}, and t_o = -0.30 yr. The male:female ratio of the population was 1:1.87 and first maturity was at the age of one year for both sexes.

The Effects Of Red Pepper, Marigold Flower, And Synthetic Astaxanthin On Pigmentation, Growth, And Proximate Composition Of Penaeus Semisulcatus, Mustafa Göçer, Mahmut Yanar, Meti̇n Kumlu, Yasemen Yanar

Turkish Journal of Veterinary & Animal Sciences

Shrimps with an initial weight of 11.10 ± 0.26 g were fed diets supplemented with 6.6% red pepper (RP), 2.4% marigold flower (MF), and 100 mg/kg synthetic astaxanthin (SA), each of which contained 100 mg/kg total carotenoid, and a control diet (BD), without carotenoid supplement for 60 days. Dietary carotenoid sources did not significantly affect the growth of the shrimps (P > 0.05). SA supplementation yielded the highest survival rate (92%), followed by RP (82%) and the other diets (75%) (P < 0.05). All dietary carotenoid sources provided higher carotenoid accumulation compared to the control group (P < 0.05), but the difference between them was not significant (P > 0.05). RP and SA resulted in a greater protein increase in shrimp muscle than MF (P < 0.05); however, lipid, ash, and water content were similar in all diet groups (P > 0.05).

The Growth And Survival Characteristics Of Lambs Produced By Commercial Crossbreeding Kıvırcık Ewes With F_2 Rams With The German Black-Headed Mutton Genotype, Bülent Eki̇z, Ahmet Altinel

Turkish Journal of Veterinary & Animal Sciences

This study was conducted to compare the growth and survival characteristics of crossbred lambs produced by mating Kıvırcık ewes with German Black-Headed Mutton (GBM) x Kıvırcık (F_2) rams, GBM x Merino (F_2) rams, as well as the growth and survival characteristics of purebred Kıvırcık lambs. The data were obtained from 59 (GBM x Kıvırcık) x Kıvırcık, 59 (GBM x Merino) x Kıvırcık, and 60 purebred Kıvırcık lambs. The birth weights of (GBM x Kıvırcık) x Kıvırcık, (GBM x Merino) x Kıvırcık, and purebred Kıvırcık lambs were 4.08, 4.32, and 3.85 kg, respectively. The differences of birth weight between the genotype …

Sheep Updates 2005 - Part 4, Lucy Anderton, John Young, Rob Davidson, Keith Croker, Ken Hart, Tim Wiese, B. M. Thomson, I Williams, J. R. Briegel, J. C. Greeff, N. R. Adams, E. N. Bermingham, Sue Hatcher, Gordon Refshauge, Emma Kopke, Ross Kingwell, K. E. Kemper, M. L. Hebart, F. D. Brien, K. S. Jaensch, R. J. Grimson, D. H. Smith, Melanie Dowling, A. (Tony) Schlink, John Karlsson

Sheep Updates

This session covers twelve papers from different authors:

REPRODUCTION

1. Is it worth increasing investment to increase lambing percentages? Lucy Anderton Department of Agriculture Western Australia.

2. What value is a lamb? John Young, Farming Systems Analysis Service, Kojonup, WA

3. Providing twin-bearing ewes with extra energy at lambing produces heavier lambs at marking. Rob Davidson WAMMCO International,, formerly University of Western Australia; Keith Croker, Ken Hart, Department of Agriculture Western Australia, Tim Wiese, "Chuckem", Highbury, Western Australia.

GENETICS

4. Underlying biological cause of trade-off between meat and wool. Part 1. Wool and muscle glycogen, BM Thomson, I Williams, University …

Influence Of Breed, Heterozygosity, And Disease Incidence On Estimates Of Variance Components Of Respiratory Disease In Preweaned Beef Calves, G. D. Snowder, L. Dale Van Vleck, L. V. Cundiff, G. L. Bennett

Department of Animal Science: Faculty Publications

The objective of this study was to characterize genetic and environmental factors influencing bovine respiratory disease (BRD) in beef cattle. Records from nine purebred and three composite breeds and a variety of F1 and three-way crosses, including the progeny of 12 additional different sire breeds produced over a 20-yr period (1983 to 2002), were evaluated for breed and heterozygosity effects on the observed incidence of BRD. Heterozygosity fractions for calves and dams were defined by generalized breed origins: British, Continental, and tropically adapted. Variance components were estimated for each pure and composite breed, and across all breeds and crossbreeds. The …

Genetic Relationships Between Male And Female Reproductive Traits In Beef Cattle, G. Gargantini, L. V. Cundiff, D. D. Lunstra, L. D. Van Vleck

Roman L. Hruska U.S. Meat Animal Research Center: Reports

Reproductive traits were measured for 234 bulls and 1184 heifers from matings of three dam breeds (Angus, Hereford, and U.S. Meat Animal Research Center III) with six sire breeds (Angus, Hereford, Brahman, Boran, Tuli, and Belgian Blue) from the Germ Plasm Evaluation (GPE) Program at Roman L. Hruska US Meat Animal Research Center. Male traits were yearling scrotal circumference (YSC), height (YH), and yearling BW; age at puberty (AP1; production of 50 million sperm with ≥10% progressive motility); age, scrotal circumference, average testis length, and testicular volume when 500 million sperm were …

Genetic And Environmental Factors Associated With Incidence Of Infectious Bovine Keratoconjunctivitis In Preweaned Beef Calves, G. D. Snowder, L. Dale Van Vleck, L. V. Cundiff, G. L. Bennett

Department of Animal Science: Faculty Publications

Infectious bovine keratoconjunctivitis (IBK) is one of the most economically important diseases in preweaned calves. This study examined the health records of 45,497 calves over a 20-yr period to determine environmental and genetic factors influencing the incidence of IBK. Three data sets were analyzed with an animal model. The first data set (n = 41,986) evaluated environmental factors and genetic differences among nine purebred (Angus, Braunvieh, Charolais, Gelbvieh, Hereford, Limousin, Pinzgauer, Red Poll, and Simmental) and three composite breeds (MARC I, MARC II, and MARC III). Weaning weights of calves diagnosed with IBK were 8.9 kg lighter (P < 0.05) than weights of healthy calves. Incidence of IBK was related to age of the calf and the seasonal life cycle of the face fly (Musca autumnalis …