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Articles 31 - 60 of 298
Full-Text Articles in Life Sciences
Comparison Of Different Chemical Pulps From Wheat Straw And Bleaching With Xylanase Pre-Treated Ecf Method, Sai̇m Ateş, Celi̇l Atik, Yonghao Ni, Esat Gümüşkaya
Comparison Of Different Chemical Pulps From Wheat Straw And Bleaching With Xylanase Pre-Treated Ecf Method, Sai̇m Ateş, Celi̇l Atik, Yonghao Ni, Esat Gümüşkaya
Turkish Journal of Agriculture and Forestry
Different pulping processes, kraft-anthraquinone (AQ), bio-kraft, soda-AQ, ALCELL, and FORMACELL were studied for wheat straw. Fungal pre-treatment with Ceriporiopsis subvermispora, white rot fungi, was applied to wheat straw before kraft-AQ pulping, the so-called bio-kraft process. Fiber properties, carbohydrate contents, FT-IR analyses, strength properties of resultant paper, and bleachability characteristics were included to determine the properties of these pulp samples. In addition, the effects of the xylanase pre-treatment on the subsequent Elemental Chlorine Free (ECF) bleaching process were investigated. The results indicated that kraft-AQ pulps from wheat straw exhibited better characteristics than the other pulp samples with lower kappa number, higher …
Dispersal Ability And Parasitization Performance Of Egg Parasitoid Trichogramma Evanescens Westwood (Hymenoptera: Trichogrammatidae) In Field And Storage Conditions, Abdurrahman Ayvaz, Eyüp Karasu, Sali̇h Karabörklü, Semi̇h Yilmaz
Dispersal Ability And Parasitization Performance Of Egg Parasitoid Trichogramma Evanescens Westwood (Hymenoptera: Trichogrammatidae) In Field And Storage Conditions, Abdurrahman Ayvaz, Eyüp Karasu, Sali̇h Karabörklü, Semi̇h Yilmaz
Turkish Journal of Biology
In this study we evaluated the dispersal ability of Trichogramma evanescens in field and storage conditions. In field studies we tested the effects of plant structure on the dispersal ability of T. evanescens from release points. Both in a corn field and on grapevines the level of parasitism was negatively correlated with distance when the host eggs were located away from the release point. The parasitization rate on grapevines and corn plants at the release point was greater than that away from the release point. Parasitization rates were significantly higher at the highest wasp density in cages. When 1000 wasps …
Sensitivity Of Kinetoplastids To Aminoglycoside: Correlation With The 3’ Region Of The Small Subunit Rrna Gene, A. S. Hamad Elgazwy, Masoom M. Yasinzai
Sensitivity Of Kinetoplastids To Aminoglycoside: Correlation With The 3’ Region Of The Small Subunit Rrna Gene, A. S. Hamad Elgazwy, Masoom M. Yasinzai
Turkish Journal of Biology
In vitro culture systems were used to assess the growth inhibition of kinetoplastids by a variety of aminoglycosides. The parasites were allowed to grow to the stationary phase in the presence of varying concentrations of the drugs. The IC-50 for every drug was calculated by comparison with the control. The sensitivity of various leishmanial strains to these drugs was in the order of: G418 > hygromycin > paromomycin > neomycin; however, under our assay conditions gentamycin and kanamycin were non-leishmanicidal. The effects of the drugs on the intracellular form of the parasite in the macrophage cell line were also tested. Other kinetoplastids, such …
The Antioxidant Activity Of Some Medicinal Plants, Prateek Kumar Jain, Veerasamy Ravichandran, Simant Sharma, Ram. K. Agrawal
The Antioxidant Activity Of Some Medicinal Plants, Prateek Kumar Jain, Veerasamy Ravichandran, Simant Sharma, Ram. K. Agrawal
Turkish Journal of Biology
The antioxidant properties of the methanol extracts of 10 medicinal plants were evaluated with the DPPH (1,1-diphenyl-2-picryl hydrazyl) test, hydroxyl scavenging test, and lipid peroxidation assay. The methanol extract of Emblica officinalis was the most active according to the DPPH test, with an IC_{50} value of 7.92 ± 0.1 \mug/ml, followed by Asparagus racemosus, with an IC_{50} value of 9.28 ± 0.2 \mug/ml. The minimum free radical scavenging activity was shown by Zingiber officinale, with an IC_{50} value of 44.48 ± 1.8 \mug/ml. The hydroxyl radical scavenging activity of the methanolic extracts of various plants was as follows: Asparagus racemosus …
Antioxidant And Vasorelaxant Activities Of Flavonoids From Amygdalus Lycioides Var. Horrida, Hossein Babaei, Omid Sadeghpour, Lutfun Nahar, Abbas Delazar, Hossein Nazemiyeh, Mohammad Reza Mansouri, Naser Poursaeid, Solmaz Asnaashari, Sedigheh Bamdad Moghadam, Satyajit Dey Sarker
Antioxidant And Vasorelaxant Activities Of Flavonoids From Amygdalus Lycioides Var. Horrida, Hossein Babaei, Omid Sadeghpour, Lutfun Nahar, Abbas Delazar, Hossein Nazemiyeh, Mohammad Reza Mansouri, Naser Poursaeid, Solmaz Asnaashari, Sedigheh Bamdad Moghadam, Satyajit Dey Sarker
Turkish Journal of Biology
Amygdalus lycioides var. horrida (Spach) Browicz (Rosaceae), also known as Prunus lycioides (Spach.) Schneid., is an endemic Iranian species of the genus Amygdalus. In Iranian traditional medicine, the aerial parts and roots of A. lycioides are used in the treatment of diabetes. Six flavonoids, i.e. quercetin 3-O-rhamnoside (1), luteolin 7-O-rhamnoside (2), isorhamnetin 3-O-rutinoside (3), kaempferol 3-O-rhamnoside (4), apigenin (5), and naringenin (6), have been isolated from the aerial parts of this plant. The structures of these compounds were elucidated by UV, MS, and NMR spectroscopic data analyses. While the antioxidant activity of these compounds was assessed by the 2,2-diphenyl-1-picryl-hydrazyl (DPPH) …
The Effects Of A Nutritionally Unbalanced Diet On Some Blood And Postpartum Fertility Parameters In Dairy Cows, Erol Alaçam, Şaki̇r Doğan Tuncer, M. Rifat Salmanoğlu, Seher Küçükersan, Kemal Küçükersan, Abdurrahman Özlüer
The Effects Of A Nutritionally Unbalanced Diet On Some Blood And Postpartum Fertility Parameters In Dairy Cows, Erol Alaçam, Şaki̇r Doğan Tuncer, M. Rifat Salmanoğlu, Seher Küçükersan, Kemal Küçükersan, Abdurrahman Özlüer
Turkish Journal of Veterinary & Animal Sciences
This study was carried out to determine the effects of mineral imbalances and negative energy balance on reproductive functions during the early and later stages of the postpartum period in dairy cows. The study included 100 randomly selected multiparous Holstein cows aged between 2 and 8 years (mean weight: 650 kg). The animals´ diets were not manipulated and they were fed the rations used by the study farm. Blood samples were taken on postpartum days 0, 20, 24, 30, 31, 38, 45, 60, and 90. Cows with calving and/or puerperium problems were recorded. Analyses were made for non-esterified fatty acids, …
Circadian Variations Of Thyroid Hormone Levels Of Nonpregnant Uniparous Fat-Tailed Iranian Ewes In Summer, Saeed Nazifi, Mahdi Saeb, Mahdi Hasankhani, Maryam Ansari-Lari, Narjes Ghafari, Fatemeh Hasanshahi
Circadian Variations Of Thyroid Hormone Levels Of Nonpregnant Uniparous Fat-Tailed Iranian Ewes In Summer, Saeed Nazifi, Mahdi Saeb, Mahdi Hasankhani, Maryam Ansari-Lari, Narjes Ghafari, Fatemeh Hasanshahi
Turkish Journal of Veterinary & Animal Sciences
Circadian variations in serum triiodothyronine (T_3), thyroxine (T_4), free triiodothyronine (fT_3), and free thyroxine (fT_4) levels were investigated in Iranian ewes. For that purpose, blood samples were collected from the jugular veins of 15 adult clinically healthy Iranian nonpregnant uniparous ewes every 6 h (0600, 1200, 1800, and 0000) during 6 days in summer with a mean ambient temperature of 40 °C. Serum T_3, T_4, fT_3, and fT_4 were measured by radioimmunoassay. There were statistically significant differences in thyroid hormone concentrations (T_3, T_4, fT_3, and fT_4) at different hours of the day. The results revealed that serum T_3, T_4, fT_3, …
The Effects Of Feeding Pollen Cake Containing Royal Jelly On Bombus Terrestris L. (Hymenoptera: Apidae) Colony Development, Fehmi̇ Gürel, Ayhan Gösteri̇t
The Effects Of Feeding Pollen Cake Containing Royal Jelly On Bombus Terrestris L. (Hymenoptera: Apidae) Colony Development, Fehmi̇ Gürel, Ayhan Gösteri̇t
Turkish Journal of Veterinary & Animal Sciences
This study was performed to determine the effects of feeding pollen cake containing honeybee royal jelly on Bombus terrestris colony development. In total, 125 bumblebee queens, 68 of which were fed pollen cake containing 10% royal jelly and 57 of which were fed normal pollen cake, were used. We found that 84% of the queens fed pollen cake containing royal jelly and 82% of those fed normal pollen cake laid eggs; 56% of the queens fed normal pollen cake established colonies, whereas queens fed pollen cake containing royal jelly did not establish any colonies and their larvae died. The results …
Single Dose Pharmacokinetics Of Cefepime After Intravenous And Intramuscular Administration In Goats, Kalpesh Patani, Urvesh Patel, Shailesh Bhavsar, Aswin Thaker, Joravarsinh Sarvaiya
Single Dose Pharmacokinetics Of Cefepime After Intravenous And Intramuscular Administration In Goats, Kalpesh Patani, Urvesh Patel, Shailesh Bhavsar, Aswin Thaker, Joravarsinh Sarvaiya
Turkish Journal of Veterinary & Animal Sciences
Pharmacokinetics of cefepime was determined following single dose intravenous (IV) and intramuscular (IM) administration at the rate of 10 mg/kg body weight in a crossover design with an interval of 21 days between IV and IM injections. The experiment was done on 6 healthy young female Surati goats (4-6 months of age). All animals were randomly allocated to receive either IV or IM injection of the drug. Blood samples were collected at various time intervals. Cefepime concentration in serum was determined by high performance liquid chromatography (HPLC). The serum drug concentration-time profile was characteristic of a 2- and 1-compartment open …
Principal Component And Clustering Analysis Of Functional Traits In Swiss Dairy Cattle, Burak Karacaören, Haja N. Kadarmideen
Principal Component And Clustering Analysis Of Functional Traits In Swiss Dairy Cattle, Burak Karacaören, Haja N. Kadarmideen
Turkish Journal of Veterinary & Animal Sciences
The objective of the research was to investigate the relationship among functional traits (body condition score (BCS), milk yield (MY), milking speed (MS), dry matter intake (DMI) and body weight (BW)). Data were from multiparous dairy cows (n = 55) of Chamau research farm of the Swiss Federal Institute of Technology, Switzerland. Principal component analysis with correlation matrix was used to find the relationship among BCS, MY, MS, DMI, BW, and other fixed effects including breed, year at calving, season, parity and year-season interaction. It was found that for all functional traits first 4 principal components explained more than 70% …
Apparent Nutrient Digestibility Of Balanced Diets With Soy Bean Extract Or Meat And Bone Meal In The Nile Tilapia (Oreochromis Niloticus L.) Infected With Vibrio Anguillarum, Kenan Engi̇n, Ferbal Özkan
Apparent Nutrient Digestibility Of Balanced Diets With Soy Bean Extract Or Meat And Bone Meal In The Nile Tilapia (Oreochromis Niloticus L.) Infected With Vibrio Anguillarum, Kenan Engi̇n, Ferbal Özkan
Turkish Journal of Veterinary & Animal Sciences
Nile tilapia, Oreochromis niloticus L., infected with Vibrio anguillarum or not infected were fed balanced diets containing vegetal (solvent extracted soy bean meal (SBM)) or animal (meat and bone meal (MBM)) protein sources in order to demonstrate the apparent nutrient and energy digestibility. Regardless of protein sources in the diets, feed intake was lower in the infected group. Apparent nutrient (AD_{DM} and AD_{CP}) and energy digestibility (AD_{kJ}) values of Nile tilapia fed the SBM diet were significantly better (P < 0.05) than those fed the CONT and MBM diets and changed little between the measurement days in both groups (non-infected and infected). Although no visible symptoms associated with vibriosis were evident on either the skin or internal organs, the significantly lower (P < 0.05) AD_{DM}, AD_{CP}, and AD_{kJ} values obtained between day 1 and 10 (specifically on days 3 and 10) in the infected group fed the CONT and MBM diets might have implicated the pathogenicity of the bacteria. Further research concentrating on higher amounts of solvent extracted soy bean and meat and bone meal, different environmental conditions and doses of infection with V. anguillarum and immune response parameters including physiological and cellular stress responses is needed in order to identify the overall apparent nutrient digestibility of plant and animal protein sources in Nile tilapia infected with V. anguillarum.
Detection Of Coxiella Burnetii In Cattle By Pcr, Şükrü Kirkan, Osman Kaya, Serten Tekbiyik, Uğur Parin
Detection Of Coxiella Burnetii In Cattle By Pcr, Şükrü Kirkan, Osman Kaya, Serten Tekbiyik, Uğur Parin
Turkish Journal of Veterinary & Animal Sciences
This study is aimed to detect Coxiella burnetii in cattle by Polymerase Chain Reaction (PCR). A total of 138 cattle blood samples were collected from 8 farms and then examined in laboratory conditions. The examination of Coxiella burnetii was carried out by PCR with specific primers. In this study, a total of 6 (4.3%) cattle serum samples were found PCR positive for Coxiella burnetii. This result proves that cattle are an important reservoir of Coxiella burnetii infection.
Microbial Flora From The Epizootic Ulcerative Syndrome (Eus) Infected Murrel Channa Striatus (Bloch, 1797) In Tirunelveli Region, Muthukrishnan Dhanaraj, Mohamed A. K. Haniffa, Chidambaram Muthu Ramakrishnan, S. Vijayakesava Arun Singh
Microbial Flora From The Epizootic Ulcerative Syndrome (Eus) Infected Murrel Channa Striatus (Bloch, 1797) In Tirunelveli Region, Muthukrishnan Dhanaraj, Mohamed A. K. Haniffa, Chidambaram Muthu Ramakrishnan, S. Vijayakesava Arun Singh
Turkish Journal of Veterinary & Animal Sciences
The microbial flora of the liver, gills, intestine, and muscle of epizootic ulcerative syndrome (EUS) infected murrel Channa striatus in Tirunelveli, Tamilnadu was estimated quantitatively and qualitatively, and the isolates were identified at genus and species level. Total viable microbial count was measured as highest range in gills (5.9 ± 0.5 x 10^7 CFU (colony forming units) g^{-1}) and lowest range in intestine (8.7 ± 1.8 x 10^4 CFU g^{-1}). In total 17 bacterial and mycotic species were isolated and identified and Aeromonas hydrophila, Enterobacter sp., Vibrio sp., Pseudomonas sp., Escherichia coli, Aphanomyces invadans, and Aspergillus sp. were the most …
The Effect Of Feed Supplemented With Different Sodium Bentonite Treatments On Broiler Performance, Talat Naseer Pasha, Amir Mahmood, Farina Malik Khattak, Makhdoom Abdul Jabbar, Allah Dita Khan
The Effect Of Feed Supplemented With Different Sodium Bentonite Treatments On Broiler Performance, Talat Naseer Pasha, Amir Mahmood, Farina Malik Khattak, Makhdoom Abdul Jabbar, Allah Dita Khan
Turkish Journal of Veterinary & Animal Sciences
The present study was conducted to determine the effect of rations containing different sodium bentonite treatments on broiler performance. The study included 280 broiler chicks (1-day-old) that were randomly allocated to 7 experimental groups designated as follows: A (control); B and C (0.5% and 1.0% sodium bentonite, respectively); D and E (0.5% and 1.0% sodium bentonite + 0.5% and 1.0% gentian violet, respectively); F and G (0.5% and 1.0% sodium bentonite + 0.5% and 1.0% acetic acid, respectively). The experimental diets were given to the broilers for 6 weeks. At the end of the experiment (day 42), weight gain, feed …
Heritability Estimates Of Post Weaning Performance Traits Of Hissardale Sheep In Pakistan, Pervez Akhtar, Safdar Ali, Asghar Hussain, Muhammad A. Mirza, Muhammad Iqbal Mustafa, Javed Iqbal Sultan
Heritability Estimates Of Post Weaning Performance Traits Of Hissardale Sheep In Pakistan, Pervez Akhtar, Safdar Ali, Asghar Hussain, Muhammad A. Mirza, Muhammad Iqbal Mustafa, Javed Iqbal Sultan
Turkish Journal of Veterinary & Animal Sciences
Data obtained from 5260 birth records of 1179 Hissardale sheep maintained at the Livestock Experiment Station, Jahangirabad, in the district of Khanewal during 1978-1995 were analyzed. The objective was to evaluate the performance and to estimate the heritability of Hissardale sheep in Pakistan. Mean 180-day, 270-day, and yearling weights were 23.5 ± 3.31 kg, 25.7 ± 3.49 kg, and 30.7 ± 3.83 kg, respectively. Mean greasy fleece weight was 3.6 ± 0.57 kg. Post-weaning mean daily weight gain was 45 ± 0.02 g. Mean weight at first service was 38.9 ± 4.9 kg. The number of services per conception averaged …
Pathological And Biochemical Effects Of Intramuscular Gentamicin Administration In Chickens, Ijaz Khan, Muhammad Zargham Khan, Muhammad Kashif Saleemi, Ijaz Javed, Ahrar Khan
Pathological And Biochemical Effects Of Intramuscular Gentamicin Administration In Chickens, Ijaz Khan, Muhammad Zargham Khan, Muhammad Kashif Saleemi, Ijaz Javed, Ahrar Khan
Turkish Journal of Veterinary & Animal Sciences
The objective of this experimental study was to examine the pathological effects of the intramuscular administration of gentamicin to growing chickens. Two experiments of 35 days´ duration were conducted simultaneously. In both experiments White Leghorn cockerels of 6 weeks of age were randomly divided into 4 groups and gentamicin was administered intramuscularly to the birds on days 1 and 3 at a dose of 10, 50, 100, and 0 mg/kg body weight, respectively. Birds administered 50 and 100 mg/kg gentamicin showed depression, diarrhea, increased water intake, and lower body weights. Mortality was 0%, 26%, and 100% in the 10, 50, …
Immuno-Histopathologic Lesions In Organs Other Than The Thymus And Bone Marrow During The Course Of Experimentally-Induced Chicken Infectious Anaemia (Cia) Disease, Aydin Gürel, Burak Kuşçu
Immuno-Histopathologic Lesions In Organs Other Than The Thymus And Bone Marrow During The Course Of Experimentally-Induced Chicken Infectious Anaemia (Cia) Disease, Aydin Gürel, Burak Kuşçu
Turkish Journal of Veterinary & Animal Sciences
Chicken Infectious Anemia (CIA) is present in various regions of the world in which poultry husbandry is common and birds of any age are susceptible. CIA is a viral infection characterized by aplastic anemia and is accompanied by atrophy of the thymus and bone marrow. This condition was first diagnosed in 1979 and since then a large number of investigations have been undertaken in order to characterize and further understand the pathology of this infection. Most of these studies emphasized either clinical findings or physiological transformation of the thymus and bone marrow. There are a limited number of studies that …
Cryosurgical Treatment Of Anal Sac Fistulae In Dogs, Mehmet Sağlam, Ümi̇t Kaya
Cryosurgical Treatment Of Anal Sac Fistulae In Dogs, Mehmet Sağlam, Ümi̇t Kaya
Turkish Journal of Veterinary & Animal Sciences
Seven dogs of different breed, age, and sex that were diagnosed with anal sac fistulae upon clinical examination constituted the study material. Sedation for the procedure was maintained by means of xylazine hydrochloride administered intramuscularly. The patients were placed in the lateral recumbency position for the insertion into the fistulae of an appropriate probe, selected according to the lesion. Rapid cooling and spontaneous thawing were performed. This procedure was performed twice consecutively. The cooling temperature was adjusted to between -30 and -50 °C. The lesion healed completely between weeks 3 and 6 following the demarcation of necrotic tissue and growth …
Effect Of Low Temperature Thawing On The Motility And Fertility Of Cryopreserved Water Buffalo And Zebu Bull Semen, M. Anwar, S.M.H. Andrabi, A. Mehmood, N. Ullah
Effect Of Low Temperature Thawing On The Motility And Fertility Of Cryopreserved Water Buffalo And Zebu Bull Semen, M. Anwar, S.M.H. Andrabi, A. Mehmood, N. Ullah
Turkish Journal of Veterinary & Animal Sciences
The study was conducted to evaluate the quality of cryopreserved buffalo and zebu semen thawed and held at low temperature. Progressive motility of frozen semen thawed in a 37 °C water bath for 45 s (control) was compared with that of semen held in ice water (3-5 °C) for 180 min. Semen collected from 3 buffalo and 2 zebu bulls was used for this purpose over 3 weeks (replicates). Fertility was compared after performing 28 inseminations with buffalo semen and 100 inseminations with zebu semen either after control thawing or thawing straws in ice water for 30-60 min. Progressive motility …
Incidence Of Endemic Diseases In Dairy Herds In Burdur, Konya, And Kırklareli Provinces In Turkey, Cengi̇z Yalçin, Savaş Sariözkan, Ahmet Şener Yildiz, Ayteki̇n Günlü
Incidence Of Endemic Diseases In Dairy Herds In Burdur, Konya, And Kırklareli Provinces In Turkey, Cengi̇z Yalçin, Savaş Sariözkan, Ahmet Şener Yildiz, Ayteki̇n Günlü
Turkish Journal of Veterinary & Animal Sciences
A prospective longitudinal observation study was carried out with 150 randomly selected dairy herds from among 1684 Turkish Dairy Breeding Association (TDBA) herds in Burdur, Konya, and Kırklareli provinces. The herds were stratified as small scale (less than 11 milking cows) and medium-large scale (more than 10 milking cows). The survey was conducted between October 2003 and September 2004, and each herd was visited at least once per month. As the weighted average of 3 provinces, the most frequent events were fertility disorders (30.2%) and udder diseases (28.3%), followed by puerperal disorders (18.3%) and locomotor system disorders (10.0%). There was, …
Toxicity Of Heliotropium Dolosum, Heliotropium Circinatum, And Senecio Vernalis In Parental Quail And Their Progeny, With Residue Evaluation Of Eggs, Yesari̇ Eröksüz, Ali̇ Osman Çeri̇başi, Aydin Çevi̇k, Hati̇ce Eröksüz, Fatma Tosun, Uğur Tamer
Toxicity Of Heliotropium Dolosum, Heliotropium Circinatum, And Senecio Vernalis In Parental Quail And Their Progeny, With Residue Evaluation Of Eggs, Yesari̇ Eröksüz, Ali̇ Osman Çeri̇başi, Aydin Çevi̇k, Hati̇ce Eröksüz, Fatma Tosun, Uğur Tamer
Turkish Journal of Veterinary & Animal Sciences
In all, 160 Japanese quail (80 male and 80 female) were divided into 4 groups (3 test groups and 1 control group). The test groups were fed a diet containing aerial parts (leaves, stems, and flowers) of Senecio vernalis (SV group), Heliotropium dolosum (HD group), or Heliotropium circinatum (HC group) at the level of 30% for 6 weeks, and the control group was fed 0% in order to evaluate parental and progenial toxicity, along with the transference of alkaloid residues to their eggs. The pyrrolizidine alkaloid content in the feed was 390 mg/kg in the HD group, 450 mg/kg in …
Population Parameters Of Tetranychus Cinnabarinus Boisduval (Prostigmata: Tetranychidae) On Eight Strawberry Cultivars, Cengi̇z Kazak, Cemal Ki̇bri̇tçi̇
Population Parameters Of Tetranychus Cinnabarinus Boisduval (Prostigmata: Tetranychidae) On Eight Strawberry Cultivars, Cengi̇z Kazak, Cemal Ki̇bri̇tçi̇
Turkish Journal of Agriculture and Forestry
Development times, reproductive rates, and population growth parameters of Tetranychus cinnabarinus Boisd. on 8 strawberry (Fragaria x ananassa Duchesne) varieties were evaluated under laboratory conditions. Total development times of immature males and females were not significantly influenced by the strawberry varieties. T. cinnabarinus laid significantly more eggs per day on cultivar Muir (8.46) than on the other cultivars. Similarly, T. cinnabarinus on Muir had the highest net reproductive rate (R_o) (120.19 F/F), while R_o was the lowest on cultivar Sweet Charlie (39.51 F/F). The generation time ranged from 18.96 to 22.32 days, but no significant varietal effect was seen. The …
Effect Of Upper Plant Parts On Yield And Quality In Turkish Durum Wheat Landraces From Different Regions, Altitudes, And Provinces, Nusret Zenci̇rci̇
Effect Of Upper Plant Parts On Yield And Quality In Turkish Durum Wheat Landraces From Different Regions, Altitudes, And Provinces, Nusret Zenci̇rci̇
Turkish Journal of Agriculture and Forestry
The aim was to explore 117 durum wheat (T. turgidum L. conv. durum (Desf.) MacKey) landraces from 2 regions, 5 altitude intervals, and 12 provinces for flag leaf length, width, angle, sheath length, fertile spikes, spike length and width, plant yield, percent vitreous kernel, pearling index, percent grain protein, and 1000 kernel weight. The field experiment consisted of 566 single plant selections from 117 populations with Kunduru 1149 and Kızıltan 91 controls, analyzed via descriptive and multivariate statistical methods. Plant yield with the highest variation was positively correlated with flag leaf length, flag leaf sheath length, and spike width. While …
Effect Of Pollination Levels On Yield And Quality Of Maize Grown For Silage, Selahatti̇n İptaş, Musa Yavuz
Effect Of Pollination Levels On Yield And Quality Of Maize Grown For Silage, Selahatti̇n İptaş, Musa Yavuz
Turkish Journal of Agriculture and Forestry
Maize (Zea mays L.) hybrids with good yields of grain and whole-plant dry matter are preferred for forage production. The objective of this study was to examine the relationship between kernel development and nutritive value of maize silage, using controlled pollination to alter the extent of ear fill in 4 maize hybrids. Whole-plant acid detergent fiber (ADF), neutral detergent fiber (NDF), and crude protein (CP) were measured. Pollination control affected the ear fill for 0% and 100% pollination levels. Stem diameter and plant height were not affected by pollination treatment; however, they were different for the hybrids. Leaf content and …
Effect Of Modified Atmosphere Packaging On The Quality And Shelf Life Of Minimally Processed Carrots, Zehra Ayhan, Okan Eştürk, Emel Taş
Effect Of Modified Atmosphere Packaging On The Quality And Shelf Life Of Minimally Processed Carrots, Zehra Ayhan, Okan Eştürk, Emel Taş
Turkish Journal of Agriculture and Forestry
The objective of this study was to investigate the effect of modified atmosphere packaging on the quality and shelf life of minimally processed carrots during cold storage. Ready-to-eat carrots (Nantes) prepared by manual peeling and automatic slicing were packed with passive (in air) and active modified atmospheres at low (5% O_2, 10% CO_2, 85% N_2) and high oxygen concentrations (80% O_2, 10% CO_2, 10% N_2). Minimally processed carrots were packed in polypropylene (PP) trays sealed with PP based film. Microbial, chemical, physical, and sensory analyses were conducted in carrots for 21 days at 4 °C. There was no yeast or …
Global Economics Of Nutrient Cycling, Bert H. Janssen, Oene Oenema
Global Economics Of Nutrient Cycling, Bert H. Janssen, Oene Oenema
Turkish Journal of Agriculture and Forestry
This paper briefly discusses global human requirements of protein nitrogen (N) from crops and animals, and then estimates the need for fertilizer N as a function of N use efficiency, and the recycling of N from animal manure and sewage wastes. These estimates are based on various assumptions and simple calculations. Results suggest that globally only 1% of N input is retained, 28% is lost to the wider environment, and some 70% is potentially available for recycling via manure and sewage. In addition, large amounts of nutrients recycle via crop residues. In practice, only a fraction of this potential is …
Improving Nutrient Use Efficiency, Terry L. Roberts
Improving Nutrient Use Efficiency, Terry L. Roberts
Turkish Journal of Agriculture and Forestry
Public interest and awareness of the need for improving nutrient use efficiency is great, but nutrient use efficiency is easily misunderstood. Four indices of nutrient use efficiency are reviewed and an example of different applications of the terminology show that the same data set might be used to calculate a fertilizer N efficiency of 21% or 100%. Fertilizer N recovery efficiencies from researcher managed experiments for major grain crops range from 46% to 65%, compared to on-farm N recovery efficiencies of 20% to 40%. Fertilizer use efficiency can be optimized by fertilizer best management practices that apply nutrients at the …
Balanced Crop Nutrition: Fertilizing For Crop And Food Quality, Hillel Magen
Balanced Crop Nutrition: Fertilizing For Crop And Food Quality, Hillel Magen
Turkish Journal of Agriculture and Forestry
Globally the ratio of N:P_2O_5:K_2O changed from 2.5:1.3:1 in the 1980s to 3.6:1.4:1 in 2002 as N consumption outstripped that of K. Regardless of their decreased nutrient consumption, developed countries maintained a modest increase in agricultural production. Positive and similar growth rates for agricultural products and nutrient consumption prevail in developing countries, but with the use of a 35% higher nitrogen (N) to potassium (K) ratio than in developed countries. The outcome of a negative K balance is presented here using examples from India, China, Egypt, and Bulgaria. Reasons for a negative K balance stem mostly from farmers' lack of …
Land Cover Change And Soil Fertility Decline In Tropical Regions, Alfred E. Hartemink, Tom Veldkamp, Zhanguo Bai
Land Cover Change And Soil Fertility Decline In Tropical Regions, Alfred E. Hartemink, Tom Veldkamp, Zhanguo Bai
Turkish Journal of Agriculture and Forestry
Land cover changes influence the biogeochemistry, hydrology, and climate of the earth. Studies that assessed land cover changes at the global scale mostly focused on: deforestation, cropland expansion, dry land degradation, urbanisation, pasture expansion, and agricultural intensification. For the assessment, remotely sensed land-cover data, census data, and expert knowledge were used. In tropical regions, forest is cleared for the expansion of cropland, wood extraction, or infrastructure expansion. This widely occurs in the Amazon region and in Asia. In many temperate regions, the area under forest is increasing although forest plantations are also on the increase in the tropics. Croplands expanded …
Micronutrients And Animal Nutrition And The Link Between The Application Of Micronutrients To Crops And Animal Health, George E. J. Fisher
Micronutrients And Animal Nutrition And The Link Between The Application Of Micronutrients To Crops And Animal Health, George E. J. Fisher
Turkish Journal of Agriculture and Forestry
Micronutrients (or 'trace elements') are required in animal diets for health and welfare, and therefore they are essential for the agricultural production of milk, meat, fibre, and eggs. It is clear from the literature that deficiencies of micronutrients, particularly in their sub-clinical form where they are not visually apparent, can result in major reductions in productivity. Micronutrients are used mostly as the central elements of enzymes and co-enzymes in the biochemistry of ruminants and monogastrics. Thus, their deficiency often leads to sub-optimal growth and fertility. Within the farming system, the aim should be to only use supplementation with micronutrients where …