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2005

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Articles 571 - 600 of 835

Full-Text Articles in Animal Sciences

Food Of The Banded Newt, Triturus Vittatus Ophryticus (Berthold, 1846), At Different Sites In Trabzon, Bi̇lal Kutrup, Emel Çakir, Nurhayat Yilmaz Jan 2005

Food Of The Banded Newt, Triturus Vittatus Ophryticus (Berthold, 1846), At Different Sites In Trabzon, Bi̇lal Kutrup, Emel Çakir, Nurhayat Yilmaz

Turkish Journal of Zoology

The diet of the banded newt, Triturus vittatus ophryticus, from 3 different sites in northern Turkey was studied based on stomach contents from 180 samples (104 males + 76 females). The banded newt was found to forage on wide variety of prey organisms in the aquatic phase. Benthic invertebrates consistently made the greatest contribution to the diet, both numerically and volumetrically. Nektonic prey also appeared to be of importance in terms of volume but constituted few items. Terrestrial invertebrates contributed very little to the diet. In addition to invertebrates, a few amphibian prey items were found in the stomachs. The …

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Observations On The Ecology, Reproduction And Behavior Of Spermophilus Bennett, 1835 (Mammalia: Rodentia) In Turkey, Şaki̇r Özkurt, Nuri̇ Yi̇ği̇t, Ercüment Çolak, Mustafa Sözen, Muhammed Mouradi Gharakheloo Jan 2005

Observations On The Ecology, Reproduction And Behavior Of Spermophilus Bennett, 1835 (Mammalia: Rodentia) In Turkey, Şaki̇r Özkurt, Nuri̇ Yi̇ği̇t, Ercüment Çolak, Mustafa Sözen, Muhammed Mouradi Gharakheloo

Turkish Journal of Zoology

Field and laboratory investigations on the ecology, reproduction and behavior of Spermophilus citellus and Spermophilus xantophrymnus were performed over a period of 4 years. Both S. citellus and S. xanthophrymnus are diurnal species and occupy semiarid steppe areas in Turkish Thrace and Anatolia, respectively. Distribution of the former species is confined to restricted steppe areas in Turkish Thrace whilethe, latter lives on the Anatolian steppe, and is sympatric with Meriones tristami, Mesocricetus brandthi, Allactaga williamsi and Microtus spp. The burrows of both species have one entrance, and are built separately in the field. They constitute small social colonies and communicate …

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Investigation Of Seasonal Sex Changes And Young Activities In Wolf And Ground Spiders (Araneae: Lycosidae, Gnaphosidae), Muhammed İsmai̇l Varol, Faruk Kutbay Jan 2005

Investigation Of Seasonal Sex Changes And Young Activities In Wolf And Ground Spiders (Araneae: Lycosidae, Gnaphosidae), Muhammed İsmai̇l Varol, Faruk Kutbay

Turkish Journal of Zoology

Seasonal activities of wolf spiders (Lycosidae) and ground spiders (Gnaphosidae) were studied in a meadow in Van between 30.11.1993 and 27.11.1994. Nineteen species belonging to 4 genera in Lycosidae and 11 species belonging to 6 genera in Gnaphosidae were identified by using pitfall traps. It was observed that male and female lycosids were active from February to July, subadult lycosids were active from May to July, female gnaphosids were active from March to October, male gnaphosids were active from February to October and subadult gnaphosids were active from February to November. In Lycosidae, adults comprised 31% of the population, the …

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Comments On: Shells Of Mollusca Collected From The Seas Of Turkey, Bi̇lal Öztürk Jan 2005

Comments On: Shells Of Mollusca Collected From The Seas Of Turkey, Bi̇lal Öztürk

Turkish Journal of Zoology

No abstract provided.

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A New Viviparous Uropodid Mite (Acari: Gamasida: Uropodina) For The Turkish Fauna, Macrodinychus (Monomacrodinychus) Bregetovaae Hirschmann, 1975, Durmuş Ali̇ Bal, Muhli̇s Özkan Jan 2005

A New Viviparous Uropodid Mite (Acari: Gamasida: Uropodina) For The Turkish Fauna, Macrodinychus (Monomacrodinychus) Bregetovaae Hirschmann, 1975, Durmuş Ali̇ Bal, Muhli̇s Özkan

Turkish Journal of Zoology

The geographic distribution and additional morphologic features of Macrodinychus (Monomacrodinychus) bregetovaae Hirschmann 1975 are presented briefly and determined as a new record for the Turkish Uropodid fauna.

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Morphometric, Karyotypic And Electrophoretic Analysis Of The Genus Apodemus Kaup, 1826 (Mammalia: Rodentia) In Thrace, Reyhan Çolak, Ercüment Çolak, Nuri̇ Yi̇ği̇t Jan 2005

Morphometric, Karyotypic And Electrophoretic Analysis Of The Genus Apodemus Kaup, 1826 (Mammalia: Rodentia) In Thrace, Reyhan Çolak, Ercüment Çolak, Nuri̇ Yi̇ği̇t

Turkish Journal of Zoology

Thirty-two specimens of Apodemus in Thrace were evaluated. Ten specimens of A. flavicollis and A. sylvaticus were karyotyped. Eighteen specimens were electrophoresed to determine patterns of the esterase enzyme system. Morphometric analysis showed that A. flavicollis and A. sylvaticus were the closest species in a comparison between A. agrarius. A. flavicollis and A. sylvaticus with the same karyotypic values of 2n = 48, Nfa = 46, and NF = 48. Patterns of the esterase enzyme system clearly separated A. flavicollis, A. sylvaticus and A. agrarius.

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Studies On Turkish Hydrophilidae (Coleoptera) I. Genus Enochrus Thomson, 1859, Ümi̇t İncekara, Abdullah Mart, Orhan Erman Jan 2005

Studies On Turkish Hydrophilidae (Coleoptera) I. Genus Enochrus Thomson, 1859, Ümi̇t İncekara, Abdullah Mart, Orhan Erman

Turkish Journal of Zoology

Two newly recorded Enochrus Thomson, 1859 (Coleoptera, Hydrophilidae) species for the Turkish fauna, E. (E.) melanocephalus (Olivier, 1792) and E. (L.) fuscipennis (Thomson, 1884), are described, and their distribution in Turkey and worldwide is presented. A key to Turkish Enochrus species is provided and E. (L.) segmentinotatus treated under the "bicolor species complex".

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Observations On Some Behaviours Of Krüper’S Nuthatch (Sitta Krueperi), A Little-Known West Palaearctic Bird, Tamer Albayrak, Ali̇ Erdoğan Jan 2005

Observations On Some Behaviours Of Krüper’S Nuthatch (Sitta Krueperi), A Little-Known West Palaearctic Bird, Tamer Albayrak, Ali̇ Erdoğan

Turkish Journal of Zoology

Some intraspecific and interspecific behaviours in Krüper's Nuthatch (Sitta krueperi) populations were observed in Antalya province, southern Turkey. An account of their endemic distribution in Anatolia on the one hand, and the lack of sufficient data on the other, gave rise to the need for such a study. The breeding behaviour in the populations is observed, particularly in the BÜK (Lütfi Büyük Yıldırım research forest) and ELMALI Cedar research forests. The results are given in 2 parts as observed behaviours throughout a year and breeding period, which are mating, nesting, brooding, parental care and rearing and territorial behaviours.

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Sexual Dimorphism In Podarcis Sicula Campestris, Milan Vogrin Jan 2005

Sexual Dimorphism In Podarcis Sicula Campestris, Milan Vogrin

Turkish Journal of Zoology

Morphometric characters (snout-vent length, tail length, head length, head width, and number of ventrals and gulars) were analysed in 58 male and 44 female Italian Wall Lizards, Podarcis sicula campestris, from the Adriatic coast of Slovenia. The Italian Wall Lizard is significantly dimorphic in most characters analysed. Males were significantly larger than females. No differences between sexes were found in the number of gulars, whereas the number of transversal rows of ventrals was significantly higher in females (27-30) than in males (24-27).

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Gonadal Maturation And Spawning In Penaeus Semisulcatus De Hann, 1844 By Hormone Injection, Mevlüt Aktaş, Meti̇n Kumlu Jan 2005

Gonadal Maturation And Spawning In Penaeus Semisulcatus De Hann, 1844 By Hormone Injection, Mevlüt Aktaş, Meti̇n Kumlu

Turkish Journal of Zoology

The effects of 3 hormones, HCG, LH-RH and serotonin (5-HT), on maturation and spawning of Penaeus semisulcatus de Hann, 1844 were investigated in 2 experiments in this study. The experiments were carried out in round (4 m diameter) fiberglass tanks for 50 days. In experiment 1, the effects of 3 dosages (1, 2 and 3 IU g^{-1} body weight (BW)) of HCG were compared against a sterile vehicle solution (0.85% NaCl) injected group (control group) and an eyestalk ablated group. In experiment 2, 3 dosages of both LH-RH (0.01, 0.1 and 0.2 mg g^{-1} BW) and serotonin (20, 50 and …

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Aphids (Homoptera: Aphididae) Of Kahramanmaraş Province, Turkey, Mahmut Murat Aslan, Nedi̇m Uygun Jan 2005

Aphids (Homoptera: Aphididae) Of Kahramanmaraş Province, Turkey, Mahmut Murat Aslan, Nedi̇m Uygun

Turkish Journal of Zoology

This study aimed to identify 68 aphid species and subspecies in Kahramanmaraş from 1998 to 2001. It was found that these species and subspecies were from 35 genera and the subfamilies Aphidinae, Chaitophorinae, Lachninae, Myzocallidinae, Pemphiginae and Pterocommatinae (Aphididae: Aphidoidea). Sixty-eight species, belonging to the tribes Aphidini-Aphidina, Aphidini-Rhopalosiphina, Macrosiphini, Chaitophorini, Cinarini, Lachnini, Myzocallidini, Eriosomatini, Fordini, Pemphigini and Pterocommatini, were examined. Aphis acetosae L., Aphis fabae mordvilkoi Borner and Janich, Cinara cupressi (Buckton) and Nurudea meitanensis (Tsai and Tang) are reported for the first time from Turkey.

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On Viperid (Serpentes: Sauria) Specimens Collected From Northeastern Anatolia, İbrahi̇m Baran, Cemal Varol Tok, Kurtuluş Olgun, Fatma İret, Azi̇z Avci Jan 2005

On Viperid (Serpentes: Sauria) Specimens Collected From Northeastern Anatolia, İbrahi̇m Baran, Cemal Varol Tok, Kurtuluş Olgun, Fatma İret, Azi̇z Avci

Turkish Journal of Zoology

Specimens of Vipera eriwanensis and Vipera kaznakovi collected from northeastern Anatolia were examined in terms of morphological characters and compared with the relevant references. The distribution ranges of Vipera eriwanensis and Vipera kaznakovi were extended in Turkey by collecting specimens from new localities.

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The Oligochaeta (Annelida) Fauna Of Aksu Stream (Antalya), Soner Çapraz, Nai̇me Arslan Jan 2005

The Oligochaeta (Annelida) Fauna Of Aksu Stream (Antalya), Soner Çapraz, Nai̇me Arslan

Turkish Journal of Zoology

The samples were collected from 10 stations from September 2002 to October 2003 with the purpose of determining the Oligochaete fauna of Aksu Stream (Antalya). Seventeen species of Oligochaeta were recorded, consisting of 7 species from the family Tubificidae, and 10 species from Naididae. All of them are reported from Aksu Stream for the first time.

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Distribution Of Turkish Helophorus Fabricius, 1775 (Coleoptera, Helophoridae) Ii. Subgenus Atracthelophorus, With Two New Records And Some Ecological Notes, Ümi̇t İncekara, Abdullah Mart, Orhan Erman Jan 2005

Distribution Of Turkish Helophorus Fabricius, 1775 (Coleoptera, Helophoridae) Ii. Subgenus Atracthelophorus, With Two New Records And Some Ecological Notes, Ümi̇t İncekara, Abdullah Mart, Orhan Erman

Turkish Journal of Zoology

Two newly recorded Helophorus Fabricius, 1775 species/subspecies for the Turkish fauna, Helophorus (Atracthelophorus) shatrovskyi Angus, 1985 and H. (A.) leontis dixoni Angus, 1987, are compared against Turkish specimens (private collection). A list of subgenus Atracthelophorus species known from Turkey and their distribution in Turkey and worldwide is presented. The ecology of each examined species is discussed.

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Studies On Sediment Characteristics Of Madhurantakam Lake, Tamilnadu, India, N. Moorthy, P. Elayaraja, Ravichandran Ramanibai Jan 2005

Studies On Sediment Characteristics Of Madhurantakam Lake, Tamilnadu, India, N. Moorthy, P. Elayaraja, Ravichandran Ramanibai

Turkish Journal of Zoology

We report the results of quantitative and qualitative investigations of the ostracod fauna of the benthos of Madhurantakam Lake in Tamilnadu, India. Five species of ostracod were recorded from the benthic samples, Cyclocypris sp. Cypris sp. C. lacustris, Cypriconcha sp. and Physocypris sp. The highest density of benthic ostracods was 4268 ind. M^{-2}. The top layer (5 cm) showed high ostracod abundance, which indicates the richness of this layer in terms of organic matter and nutrients. The ostracod abundance and diversity were high during the post-summer months of June, July and August 2002. The ostracods dominated the macro-invertebrate fauna in …

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A Preliminary Survey Of Testudo Graeca Linnaeus 1758 Specimens From Central Anatolia, Turkey, Oğuz Türkozan, Kurtuluş Olgun, John Wilkinson, Leigh Gillett, John Spence Jan 2005

A Preliminary Survey Of Testudo Graeca Linnaeus 1758 Specimens From Central Anatolia, Turkey, Oğuz Türkozan, Kurtuluş Olgun, John Wilkinson, Leigh Gillett, John Spence

Turkish Journal of Zoology

Sixteen specimens of Testudo graeca Linnaeus 1758 from 2 adjacent localities (Meke and Acıgöl) in Central Anatolia were measured. Morphological characters standardised for straight carapace length (SCL) were compared with original raw values from Testudo populations from Aegean and south-eastern Turkey. The post-ANOVA pairwise analysis (Tukey's) across all groups verified sexual dimorphism in the Central Anatolian populations in terms of anal suture length (P < 0.05) and plastron width 2 (P < 0.05). Discriminant analysis based on standardised values provided 89.3% and 92.6% correct classification among males and females, respectively. The difference was clearer between the Aegean and Central Anatolian populations, with a more domed carapace (CH) in the males and shorter plastron length (PL) and plastron width 2 (PW2) in the females of the Aegean population in comparison with the Central Anatolian population.

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Two New Records Of Camerobiidae (Acari: Actinedida) For The Turkish Fauna, Kami̇l Koç Jan 2005

Two New Records Of Camerobiidae (Acari: Actinedida) For The Turkish Fauna, Kami̇l Koç

Turkish Journal of Zoology

Tycherobius polonicus Bolland, 1986 and Neophyllobius podocarpi Bolland, 1991, originally described in Poland and the USA, respectively, are recorded for the first time in Turkey. Their morphological characters and distributions are given. In addition, a key is given to the known genera of Camerobiidae from Turkey

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The Histochemical And Ultrastructural Effects Of Cadmium On Mouse Edl Muscle, Fati̇me Geyi̇koğlu, Aysel Temelli̇, Özgen Vuraler, Hasan Türkez Jan 2005

The Histochemical And Ultrastructural Effects Of Cadmium On Mouse Edl Muscle, Fati̇me Geyi̇koğlu, Aysel Temelli̇, Özgen Vuraler, Hasan Türkez

Turkish Journal of Zoology

The histochemical and ultrastructural effects of cadmium (Cd) on the extensor digitorum longus (EDL) muscles of male mice were investigated. Two doses of Cd (0.1 and 1.0 x 10^{-4} M) were injected into the mice. The animals were killed at the end of 48 h and their EDL muscles excised. Three types of fibers (I, IIA and IIB) were described by the succinic dehydrogenase (SDH) method in the control groups. The mitochondrial and sarcotubular contents of the fibers were different. The histochemical and ultrastructural characteristics of the EDL muscles in mice given Cd did not differ from those of the …

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Some Biological Aspects Of The Himri Barbel, Barbus Luteus, In The Intermediate Reaches Of The Euphrates River, Ramez Al Hazzaa Jan 2005

Some Biological Aspects Of The Himri Barbel, Barbus Luteus, In The Intermediate Reaches Of The Euphrates River, Ramez Al Hazzaa

Turkish Journal of Zoology

Growth; length-weight, standard-, fork-, and total length relationships; age composition; sex ratios; age at first maturity; and fecundity of the himri, Barbus luteus, from different sites along the middle reaches of the Euphrates River were investigated. Von Bertalanffy's growth models were L_t = 54.71 (1-e^{0.110 (t+0.163)}), W_t = 1252.833 (1-e^{0.127 (t+1.825)})^{2.454} in males, and L_t = 56.93 (1-e^{0.105 (t+0.377)}), W_t = 1395.363 (1-e^{0.107 (t-1.81)})^{2.545} in females. Isometric growth was identified from length-weight relationships. Younger age groups dominated the catches, with identifiable ages ranged from II to VII years. Sexual ratios were unbiased and did not deviate from 1:1. Most fish …

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On The Distribution And Morphology Of The Steppe Viper, Vipera Eriwanensis (Reuss, 1933), From Gavur Mountain (Gümüşhane), Bi̇lal Kutrup, Ufuk Bülbül, Nurhayat Yilmaz Jan 2005

On The Distribution And Morphology Of The Steppe Viper, Vipera Eriwanensis (Reuss, 1933), From Gavur Mountain (Gümüşhane), Bi̇lal Kutrup, Ufuk Bülbül, Nurhayat Yilmaz

Turkish Journal of Zoology

Vipera eriwanensis (Reuss, 1933), known only from the localities of the eastern Aras River in Turkey, was morphologically examined and compared with the related species on the basis of one additional specimen from Gavur mountain (province Gümüşhane), situated outside the known localities. This information changed our knowledge of the total distribution of V. eriwanensis, clearly showing that this taxon has expanded its range at least 210 km to the west in eastern Turkey. Furthermore it differs from V. eriwanensis reported from Turkey, Armenia and Azerbaijan in having a lower number of mid-body scales and loreals, and a higher number of …

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On The Fish Fauna Of Lake İznik (Turkey), Müfi̇t Özuluğ, Ömer Altun, Nuretti̇n Meri̇ç Jan 2005

On The Fish Fauna Of Lake İznik (Turkey), Müfi̇t Özuluğ, Ömer Altun, Nuretti̇n Meri̇ç

Turkish Journal of Zoology

Lake İznik, which is under the threat of pollution, has been subject to a very limited number of studies in terms of its fish fauna, and therefore the species living in the lake are not well known yet. It was demonstrated that 19 fish species inhabit Lake İznik: Alburnus alburnus (Linnaeus, 1758), Alburnus chalcoides (Güldenstadt, 1772), Barbus tauricus escherichi Steindachner, 1897, Capoeta tinca (Heckel, 1843), Carassius gibelio (Bloch, 1782), Cyprinus carpio Linnaeus, 1758, Leuciscus cephalus (Linnaeus, 1758), Rutilus frisii (Nordmann, 1840), Rutilus rutilus (Linnaeus, 1758), Vimba vimba (Linnaeus, 1758), Tinca tinca (Linnaeus, 1758), Cobitis vardarensis Karaman, 1928, Nemacheilus angorae Steindachner, …

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Allozyme Variation In Spalax Leucodon Nordmann, 1840 (Rodentia: Spalacidae) In The Area Between Ankara And Beyşehir, Teoman Kankiliç, Ercüment Çolak, Reyhan Çolak, Nuri̇ Yi̇ği̇t Jan 2005

Allozyme Variation In Spalax Leucodon Nordmann, 1840 (Rodentia: Spalacidae) In The Area Between Ankara And Beyşehir, Teoman Kankiliç, Ercüment Çolak, Reyhan Çolak, Nuri̇ Yi̇ği̇t

Turkish Journal of Zoology

Eighty-one specimens belonging to 3 populations of Spalax leucodon collected in the area between Ankara and Beyşehir were electrophoretically analyzed. Three enzyme systems, isocitrate dehydrogenase (Idh), esterase (Est) and \alpha-glycerophosphate dehydrogenase (\alpha-Gpdh), were screened using horizontal starch gel electrophoresis, and 5 loci were determined. Three loci (Idh-1, Est-1, Est-3) were polymorphic, and 2 (Idh-2, \alpha-Gpdh) were monomorphic. Heterozygosity ranged from 0.1804 (in population A) to 0.2254 (in population K). Genetic divergency in 3 the populations resulted from the locus Idh-1 (F_{st} = 0.0372). The mean value of the fixation index in 3 the populations (F_{st} = 0.0266) reflected little genetic …

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The Turkish Gecko Hemidactylus Turcicus Prefers Vertical Walls, Milan Vogrin, Andreja Miklic Jan 2005

The Turkish Gecko Hemidactylus Turcicus Prefers Vertical Walls, Milan Vogrin, Andreja Miklic

Turkish Journal of Zoology

In summer 1997 on the island of Pag in Croatia, we studied a selection of perching sites of the Turkish gecko Hemidactylus turcicus. With the transect sampling of 1 hour in 2 days we found 102 geckos. Adults as well as juveniles were founds mostly on vertical walls.

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Biochemical And Molecular Nutrition Blocks As Dietary Supplements In Llamas (Lama Glama) In The Last Third Of The Gestation Period Of The Ceac, Janette Illanes Callejas Jan 2005

Biochemical And Molecular Nutrition Blocks As Dietary Supplements In Llamas (Lama Glama) In The Last Third Of The Gestation Period Of The Ceac, Janette Illanes Callejas

Theses and Dissertations

The present work consisted in the use of biochemical and molecular nutrition blocks (BMN) in llamas during the last third of the gestation period, at the Agricultural Experiment Center of Condori (CEAC), located 49 km north of the city of Oruro, and 12 km north of the Caracollo population, in the province of Cercado. For this research work, we used 20 pregnant llamas in the last third of their gestation period, between the ages of 2 and 3 years old, 10 of which belonged to the Khara breed, and 10 to the Thampulli breed. Two corrals of 7 x 7 …

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Genetic (Co) Variance For Growth And Tenderness Related Traits In Purebred Brahman Steers, Joshua Dean Domingue Jan 2005

Genetic (Co) Variance For Growth And Tenderness Related Traits In Purebred Brahman Steers, Joshua Dean Domingue

LSU Master's Theses

Paternal half-sib groups of Brahman bull calves were purchased at weaning from purebred Brahman producers in Louisiana. Following backgrounding and grazing on ryegrass the steers shipped to a commercial feedlot in south Texas. Steers were slaughtered in groups when they reached an approximate average endpoint weight of 535 kg and 10mm backfat. After a 24 hr chill, carcasses were ribbed, data collected, and a longissimus muscle sample taken for calpastatin assay. Two 2.54 cm thick steaks were randomly removed from the large end of the strip loin, vacuum packaged, and randomly selected for 7 and 14 days of aging. Genetic …

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Effects Of Protein Sources With Differing Ruminal Degradation Characteristics On Nutrient Digestibilities And Flows Through Various Segments Of The Gastrointestinal Tract Of Non-Lactating Holstein Cows, Taylor Whitney Braud Jan 2005

Effects Of Protein Sources With Differing Ruminal Degradation Characteristics On Nutrient Digestibilities And Flows Through Various Segments Of The Gastrointestinal Tract Of Non-Lactating Holstein Cows, Taylor Whitney Braud

LSU Master's Theses

Six non-lactating Holstein cows with ruminal and duodenal cannulas were used in a replicated 3x3 Latin square design experiment to investigate the effects of supplemental protein source on ruminal and total tract nutrient digestibility. Supplemental protein was provided from soybean meal (SBM), expeller processed soybean meal (EXP), or menhaden fish meal (FM). Basal diets consisted of (DM basis) 33% corn silage, 20% bermudagrass hay, 27% ground corn, and 2% minerals and vitamins. Supplemental protein was provided as (DM % of total diet) 18% soybean meal (SOY), 17% soybean meal and 1% fish meal (FM), or 12% soybean meal and 6% …

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Reproductive Characteristics Of High Body Condition Mares With High Versus Low Leptin Concentrations, Cara A. Waller Jan 2005

Reproductive Characteristics Of High Body Condition Mares With High Versus Low Leptin Concentrations, Cara A. Waller

LSU Master's Theses

Two experiments were performed to discover what, if any, reproductive differences exist in high body condition (BCS) mares with varying concentrations of leptin. Previous research showed that mares with high body condition scores can have a range of leptin levels, from very low (<5 ng/mL) to very high (>10 ng/mL). Earlier results indicated that most mares with high body condition scores maintain estrous cycles or show significant follicular activity during the winter. Among these high BCS mares, about 30% of them exhibit hyperleptinemia and hyperinsulinemia. The first experiment was designed to compare the reproductive characteristics of high BCS mares with high versus low leptin …

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Effect Of Chromium Propionate And Fat Source On Growth, Carcass Traits, And Meat Quality In Swine And The Effect Of Chromium Propionate On Growth And Carcass Traits In Broilers, Ashunti Ria Jackson Jan 2005

Effect Of Chromium Propionate And Fat Source On Growth, Carcass Traits, And Meat Quality In Swine And The Effect Of Chromium Propionate On Growth And Carcass Traits In Broilers, Ashunti Ria Jackson

LSU Master's Theses

Three experiments were conducted to determine the effects of the chromium propionate (CrProp) in swine and poultry diets. Two broiler experiments, each utilizing 1,460 Ross X Ross broilers, were conducted to evaluate the effects of 0, 200, 400, or 800 ppb CrProp on growth performance and carcass traits in 0 to 42 and 0 to 49 d-old broilers. In Exp. 1, 400 ppb Cr decreased (P < 0.10) ADG and G:F in the grower phase, but mortality was reduced (P < 0.10) in broilers fed 200 ppb or 800 ppb Cr. In the finisher phase, G:F was increased (P < 0.10) in broilers fed all dietary levels of Cr, and mortality was reduced (P < 0.10) in broilers fed 200 and 400 ppb Cr. Chromium did not affect the overall growth data or carcass traits. In Exp. 2, CrProp did not affect growth performance. The results indicated that Cr as CrProp improved G:F in the later phases of growth and reduced mortality in Exp. 1 but not in Exp. 2. In Exp. 3, 108 crossbred Yorkshire gilts were used to examine the effects of 0 or 200 ppb CrProp on iodine value, fatty acid profile of fat, growth, carcass traits, and pork quality from gilts fed tallow or choice white grease (CWG). Chromium decreased (P < 0.03) 10th rib back fat and increased (P < 0.02) percent muscle. Gain:feed was increased (P < 0.003) and ADFI decreased by fat addition. Fat increased hot carcass weight (P < 0.07) and dressing percent (P < 0.02). Average back fat, 9th rib CL, and total loss were decreased (P = 0.02 to 0.04) by tallow. Belly width was increased (P < 0.08) by tallow, but belly bending on both the teatline and scribe side were increased (P = 0.004 to 0.01) by CWG. Iodine values on belly and loin samples were increased (P < 0.001) by CWG. Overall, Cr affected BF and percent muscle and the inclusion of tallow decreased (P = 0.03 to 0.09) belly and loin iodine value further than CWG or no added fat.

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The Effect Of Age And Sex On The Growth Patterns Of Bovine Cell Lines, Jeho Shin Jan 2005

The Effect Of Age And Sex On The Growth Patterns Of Bovine Cell Lines, Jeho Shin

LSU Master's Theses

The influence of donor animal sex or age on in vitro bovine cell culture was evaluated to provide foundation information for the selection of donor tissue for nuclear transfer. Skin biopsies were taken from each of sixteen individuals including four bulls (B), four cows (C), four male calves (MC), four female calves (FC). At passage 2, cells from in vitro culture of cell lines were influenced not by gender but by age in the mean cell generation time (MGT). When evaluating familial lineage, comparison between related and unrelated groups showed that most comparisons do not show significant differences in lag …

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Characteristics Of Reduced Fat Milks As Influenced By The Incorporation Of Folic Acid, Kamalesh Achanta Jan 2005

Characteristics Of Reduced Fat Milks As Influenced By The Incorporation Of Folic Acid, Kamalesh Achanta

LSU Master's Theses

Folic acid plays an important role in the prevention of neural tube defects such as spina bifida and anencephaly, heart defects, facial clefts, urinary abnormalities and limb deficiencies. Milk and milk products serve as a potential source for folic acid fortification due to the presence of folate binding proteins which seem to be involved in the folate bioavailability. Though milk is a not a good source of folic acid, fortification could help in the prevention of the above mentioned defects. The objective of this study was to examine the physico-chemical characteristics of reduced fat milks fortified with folic acid. Reduced …

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