Zootekni ve Hayvan Besleme/Makale Koleksiyonu

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https://hdl.handle.net/20.500.12395/15702

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Farklı Oranlarda Protein I?çeren Rasyonlarla Beslenen Kaya Kekli?kleri?nde (Alectoris Graeca) Büyüme Özelli?kleri?
(Selçuk Üniversitesi, 2001 Mart) Garip, Mustafa; Yılmaz, Alper; Kırıkçı, Kemal; Arslan, Cavit
This study was carried out to determine the effects of different protein levels on growth characteristics in rock partridges. A total of 279 partridges were used in this study. Partridges were fed the diets with 16, 20, 24, 28% CP in 0-5 weeks, (Group I, II, III, IV), and 14, 18, 22, 24 % CP in 6-9 weeks. At the end of the research, live weight in groups were found to be 282.02, 333.38, 357.75 and 372.10 g respectively (P<0.001). As a result, depend on the increase of protein level in diets live weight and feed efficiency were increased.
Broylerlerde Yağlı Karaci?ğer Sendromu Üzeri?nde Hi?stoloji?k ve Bi?yoki?myasal Çalışmalar
(Selçuk Üniversitesi, 1987 Ocak) Aştı, Reşat; Tuncer, Şakir Doğan; Coşkun, Behiç; Başpınar, Nuri; Çelik, İlhami; Kalaycıoğlu, Leyla
This study was carried out to investigate the correlation between the fatty liver syndrome and some blood values in broilers fed with rations containing corn, sunflower oil and animal fat. Totally 150 day-old Arbro - 7 female chicks were used in the experiment. There were three groups each containing 50 chicks. The experiment lasted in 56 days. At the end of the experiment, a severe case of fatty livers was observed in the group fed with corn based ration. The highest SGOT (P<0.05) and FFA values were found in this group. In the other two groups fed differently with ration containing sunflower oil and the animal fat, the lesser amount of lipid infiltrations were observed. The total serum cholesterol levels in the group fed with animal fat were higher than the other groups (P<0.01). As a result, it can be deduced that the determination of SGOT values as well as the histological investigation would be helpfull in the diagnosis of subclinical fatty liver syndrome.
Broyler Rasyonlarına Deği?şi?k Mi?ktarlarda Katılan Bi?oti?ni?n Besi? Performansı ve Karaci?ger Yağlanmasına Etki?si?
(Selçuk Üniversitesi, 1988 Ocak) Tuncer, Şakir Doğan; Aştı, Reşat; Coşkun, Behiç; Şeker, Erdoğan; Demirci, Ülker
This study was carried out to investigate the effect of different amounts of biotin (0, 50, 100 and 150 ug/kg) added to the broilers' ration on growth performance and fatty liver syndrome. In this study, 1000 day-old Hybro chicks were used. They were distributed into 4 groups, each group containing 250 chicks and the experiment was ended at the 49th day. Mean final weight values in the groups were 1841.13; 1871.78; 1822.88 and 1848.39 g respectively. There were no significant differences among the live weights of the groups (P > 0.05). But the highest final weight was found in the group fed 50 µg/kg biotin. Total feed consumption for all groups were 4.295; 4.326; 4.378 and 4.294 kg respectively. There was no large variation among the groups related to feed consumption. Feed convertion were found to be 2.340; 2.312; 2.405 and 2.324 kg, respectively, during the experiment. According to these results, experimental group I (50 µg/kg biotin) consumed less feed for 1 kg weight gain than the others. At the end of the experiment, in macroscopic investigation, livers of the groups given 0 and 50 ug/kg biotin were seen pale in colour and fatty. In microscopic investigation of the livers in the same groups, severe lipid infiltrations were seen in the cytoplasma of paranchymal cells. The livers of second (100 ug/kg biotin) and third (150 ug/kg biotin) groups were macroscopically normal. Any lipid infiltration in the paranchymal cells were not observed. 50 pg/kg biotin improves the growth performance but the same level was not effective in preventing fatty liver syndrome. As a result, the use of the amount of 100 µg/kg biotin would be recommended in preventing the formation of fatty liver syndrome in broiler feeding.
Farklı Enerji? Kaynaklarının Broylerlerde Besi? Performansı, Abdominal Yağ Birikimi ve Karaciğer Yağlanması Üzerine Etkisi II. Karaciğer Yağlanmasına Etkisi
(Selçuk Üniversitesi, 1987 Ocak) Tuncer, Şakir Doğan; Aştı, Reşat; Coşkun, Behiç; Erer, Hüdaverdi; Tekeş, Mehmet Ali
This study was carried out to investigate the effects of different energy sources used in broiler diets on occurence of fatty liver syndrome. Four hundred male and 400 femal dayold Arbro 7 were randomly distributed by sex into sixteen pens with each pen containing 50 chicks. In eight experimental rations, 1. Corn (M); 2. Sunflower oil (2.5%) (AY); 3. Sunflower oil (5%) (AY); 4. Fish oil (2.5%) (BY); 5. Fish oil (5 %) BY); 6. Animal fat (2.5%) (HY); 7. Animal fat (5%) (HY); 8. Wheat+Sunflower oil (3%) (BAY) were used as supplemental or based energy sources. Each ration was fed to one male and one female group. Thus, sixteen groups were set up and experiment was ended at the 56th day. At the 56th day of the experiment, the highest liver weights and liver fat percentages of the male chickens were found in BY, and BY, fed fish oil. On the other hand, the highest liver weight was found in BY, and the highest percentage of liver fat was observed in BY, in the females. At the end of the experiment, in macroscopic investigation of livers of the male and female chickens fed fish oil were yellowish pale, swollen and crispy. In microscobic investigation of the livers in the same groups, the excessive amounts of lipid infiltrations were seen in the cytoplasma of paranchymal cells. Simiral observation was found in the livers of female chickens fed corn. There were the excessive amounts of lipid infiltrations in M and BAY in males and in HY, and BAY females, but the lipid level was less than the above groups. By contrast, the lesser amounts of lipid infiltrations were observed in the liver paranchymal cells of the chickens fed the rations supplemented vegetable or animal fat. As a result, because of the best effect on the reduction of fat level obtained with supplementing various levels of sunflower oil, it is suggested that the vegetable oil be used in broiler rations as an energy substitute of some part of corn. On the contrary, fish oil used in broiler rations increased liver fat accumulation and caused fishy smell in meat.
Amonyak ile Muamele Edi?len Buğday Samanının Si?ndi?ri?lme Derecesi?ni?n Tespi?ti? ve Sığır Besi?si?nde Kullanılma İmkanları
(Selçuk Üniversitesi, 1992 Ocak) Coşkun, Behiç; Deniz, Suphi; Ayar, Ali; Kadak, Ramazan; Deligözoğlu, Fazıl
This experiment was conducted to investigate the effects of treatment of wheat straw with aqueous ammonia on its digestibility and feed intake and weight gain of beef cattle fed two level of concentrate mixture. About five tones wheat straw stack treated with 40 g aqueous ammonia contains 25 % NH3 per kg straw for 30 days after covering the stack with plastic sheet. The digestibilities of untreated and treated straw was determined with four Merino rams. The digestibilities of dry matter, crude protein, crude fibre, organic matter were 47.74, 58.80, 58.83 and 49.22 % for untreated straw and 49.59, 73.42, 63.35, 52.92 % for treated straw, respectively. In the feeding experiment, 28 bulls were allocated to four groups each of 7 bulls. Two level of concentrate mixture and two straw (treated and untreated) were given with a 2x2 factorial arrangement. The ammonia treatment decreased straw intake. No differences in the live weights gain were found among the groups.
Kloramfeni?kolün Yumurta Tavuklarında Veri?m Üzeri?ne Etki?si? ve Yumurtada Kloramfeni?kol Rezi?düleri?ni?n Aranması
(Selçuk Üniversitesi, 1989 Ocak) Acet, Ahmet; Tuncer, Şakir D.; Coşkun, Behiç; Demet, Ömer; Traş, Bünyamin; Baytok, Erol
This study was conducted to the effect of chloramhenicol on the egg production of the laying hens and the residue levels in the eggs. Laying hens in four groups of 30 were fed on a diet containing chloramphenicol 0 ppm (group I), 20 ppm (group II) and 40 ppm (group III) for two mounths and 400 ppm (group IV) as a therapoutic dose for 5 days. Chloramphenicol did not effect on egg yield, egg weight, feed intake, and fed efficiency ratio. The residue of the chloramphenicol in the eggs were determined by using HPLC. Residues of the chloramphenicol can be routinly quantitated by this method at 2 ppb with 80-90 % recovery. No residue of chloramphenicol in the eggs from the group II was detected. But 5-20 ppb residue were faund in the eggs from group III. Increasing level of residues (58-197) were in the eggs from group IV in the first five days. Then the levels of residues decreased and were not detected on the day 30 after withdrawal of the drug.
Furazolidonun Etli?k Pi?li?çlerde Büyüme Üzeri?ne Etki?si? ve Dokularda Rezi?düleri?ni?n HPLC Sistemi? ile Tayi?ni?
(Selçuk Üniversitesi, 1989 Ocak) Acet, Ahmet; Coşkun, Behiç; Demet, Ömer; Traş, Bünyamin; Baytok, Erol
Three experiments were conducted to examine the effect of furazolidone on the growth performance of broiler chickens and residue level and excrection time in edible meat, liver and kidney samples. In experiment 1, 240 day-old chicks were assigned to four groups with dietary treatmens including various levels (0, 5, 15, and 45 mg/kg feed) of furazolidone. The diets were fed to 42 days old and and growth performance of the groups were determined. In experiment 2, 45 chickens, 42 days old, in 3 groups were given furazolidone 0, 100, 200 mg/kg feed for 10 days. In experiment 3, two groups chickens, each had 15 chickens, were feed furazolidone 300 and 500 mg/kg feed for 5 days as a curative dose. No benefical effects of dietary furazolidone on live weights but decreased feed intake. Two chickens/group/day were slaughtered during the 7 days after withdrawal of furazolidone to determine residue lewels. Furazolidone residues were analysed in kidney, liver and muscles by using HPLC. In experiment 1, furazolidone residues were detected during the 7 days in kidney and liver samples and 3 days in muscles. In experiment 2, the residues were disappered at day 6 in kidney and liver samples and day 4 in muscles. But in experiment 3, the drug were not excreted from the tissues even at the end of the 7 days.
Türki?ye'de Üreti?len Pamuk Tohumu Küspeleri?nde Gosipol Düzeyleri?ni?n Tesbi?t Edi?lmesi? Üzeri?nde Bi?r Araştırma
(Selçuk Üniversitesi, 1986 Ocak) Tuncer, Şakir Doğan; Yalçın, Sakine
This experiment was carried out to determine free and total gossypol contents of cottonseed meals obtained from the different parts of Turkey. Cottonseed meal plays an important role in supplying the protein needs of animals. However gossypol content, especially free gossypol content, is a restricted factor for the usage of this meal. At the end of the experiment, free and total gossypol amounts of extraction cottonseed meal were found as 0.0573 and 0.418%; the amounts of expeller cottonseed meal were also found as 0.0694 and 0.565%, respectively.
Kuzu Rasyonlarına Degi?şi?k Düzeylerde Katılan Sodyum Bi?karbonatın Besi? Performansına Etki?si?
(Selçuk Üniversitesi, 1988 Ocak) Coşkun, Behiç; Tuncer, Şakir Doğan; Tekeş, Mehmet Ali; Akmaz, Ali; İnal, Şeref
This study was carried out to investigate the effects of different levels of sodium bicarbonate that was added into concentrate mixtures in 0.5 and 1% on growth performance. In the experiment, 42 Akkaraman male lambs with 5.5-6 months old were used. The research works were conducted as 3 groups for the period of 56 days. The ration of the control group did not contain any sodium bicarbonate. The average of final weights of lambs in the groups were 48.08; 46.75 and 47.38 kg respectively (P<0.05). Average daily weight gain was found to be 233 g in the control group; 193 and 207 g in the other groups respectively (P<0.05). The concentrates and wheat straw fed to the lambs ad libitum. Total feed consumption for all groups were 1750; 1773 and 1817 g respectively. Total feed intake per kg weight gain were found to be 7.51; 9.19 and 8.78 kg, respectively.
Sütten Kesi?lmi?ş Akkaraman Kuzularında Sodyum Lasalosi?d'i?n Besi? Performansı Üzeri?ne ve Muhtemel Bi?r Koksi?di?yozi?se Karşı Etki?si?
(Selçuk Üniversitesi, 1986 Ocak) Tuncer, Şakir Doğan; Coşkun, Behiç; Cantoray, Rıfat; Tekeş, Mehmet Ali
This experiment was carried out to investigate the effects of Na-lasalocid that was added into concentrate mixtures in 25, 50 and 75 g per ton on growth performance and against the possible coccidia infection of lambs. In the experiment, 40 Akkaraman male lambs with 3.5-4 months old were used. The research works were conducted as 4 groups for the period of 84 days. The ration of the control group did not contain any Na-lasalocid. The average of final weights of lambs in the groups were 47.41; 48.91; 49.98 and 49.96 kg respectively, (P>0.05). Average daily weight gain was found to be 260 g in the control group; 262, 281 and 280 g in the other groups, respectively, (P>0.05). The concentrates and wheat straw fed to the lambs ad libitum. Total feed consumption for all groups were 1646, 1648, 1650 and 1709 g respectively. The concentrate intake per kg weight gain were found to be 5.896, 5.744, 5.402 and 5.571 kg, respectively. According to these results, it would asserted that the groups feed with lasalocid improved the feed conversion rate more than the control group at the level of 2.58%, 8.38%, and 5.51%, respectively. The numbers of coccidia oocysts were found to be 6133, 5100, 6000 and 7833 in 1 g of feces sample at the beginning of the experiment. However, the counts of oocysts were sharply reduced after the treatment with Na-lasalocid at all levels. These values were found to be 4033, 38, 30 and 0, respectively, at the end of the experiment. Although 25 g g/ton Na-lasalocid did not improve the growth per- formance, the same level was highly effective in reducing the cocysts counts. On the other hand, spesifically 50 g/ton Na - lasalocid had both possitive effect on growth performance and reducing oocysts numbers. As a result, the use of this level would be strongly recommended in intensive lamb feeding.
Karma Yem ve Maddeleri?nde Zearalenon Düzeyleri?ni?n Yüksek Performans Li?ki?t Kromatografi? Yöntemi? ile Araştırılması
(Selçuk Üniversitesi, 1989 Ocak) Acet, Ahmet; Demet, Ömer; Coşkun, Behiç; Ağaçdelen, H. Hüseyin; Tuncer, Nesrin; Traş, Bünyamin
The levels of zearalenone were investigated in total 99 various commerical feed mixtures and feed ingredients by using HPLC. The sensitivity of the method was found as 1 µg/kg. Samples were collected in the periods of January February and April May from Konya, Adana, Bursa regions. In the first period, total 65 samples which are 19 feeds and 46 feed- stuffs were analysed. Zearalenone was determined in 6 samples of the feeds and 15 samples of the feedstuffs. The avarage level of zearalenone was calculated as 3.66mu*g / k * g in whole samples. In the second period, total 34 samples which are 11 feeds and 23 feed- stuffs were analysed. Zearalenone was determined in 6 samples of the feeds and 8 samples of the feedstuffs. The average level of zearalenone was calculated as 5.46mu*g / k * g in whole samples. In both periods, the percentage of the samples included zearalenon was average 33 % and the mean zearalenone level was determined as 4.31 µg/kg feed. The samples contained about 10 mu*g / k * g zearalenone may cause hipercostrogenism in pigs. Same effects may be seen in the other animals when these feedstuffs fed for a long periods.
Ci?nsel Olgunluk Çağında Farklı Canlı Ağırlığa Sahi?p Broyler Parent Grupları Arasındaki? Bi?rleşti?rmeleri?n Performansa Etki?si?: I. Ebeveynleri?n Performansı
(Selçuk Üniversitesi, 2001 Mart) Dere, Süleyman; Tekeş, M. Ali
The purpose of this study is to determine the relationships between body weight and age of sexual maturity in broiler breeders and to determine the effects of housing together male and female broller parents with different body weight at 22 weeks old age during production period on mortality, egg production, egg weight, hatchablity. fertility. As the research material, 778 Avian female and 116 Peterson male broiler breeders were used. Parent male and female chickens were separately divided into three base body weight groups called light, middle and heavy at 22 weeks old age. Separately three body weight subgroups which have almost similar variance and average values were obtained from base body weight groups by using sensitive sampling method. Six male and 64 female broiler bre eder parent chickens obtained from bodyweight subgroups were housed in 9 pens during production period. Egg production percentage, egg weight, hatchability, fertility, age at sexual maturity of broiler breeder chicken groups were determined. Age at onset of lay of Hh (Light male x light female). Ha. Ho, Ah. Aa(Heavy male x heavy female), Ao. Oh, Oa and Oo(Middle male x middle female) broiler breeder female groups were determined as 186, 179, 181, 186, 173, 181, 184, 176, and 180 days, respectively. There were no statistically significant differences among broiler breeder parent groups in respects of average production period egg production percentage, egg weight, fertility and hatchability. As a result, it can be said that there were need to investigate the effect of body weight trait of different mating groups at sexual maturity age in broiler breeders on the performance of their offsprings.
Broyler Rasyonlarında Yağ Sanayi Yan Ürünleri?ni?n Kullanımı
(Selçuk Üniversitesi, 1995 Nisan) Balevi, Tahir; Coşkun, Behiç; Aktümsek, Abdurrahman
Totaly, 184 broiler chicks were used in this investigation in which the availability of by-products of oil industry in broiler rations was investigated. The growth performance, weight of carcass and abdominal fat and amounts of fatty acids in abdominal fat of broilers fed diets consisting 5 % sunflower crude oil, sunflower soapstock, acidulated sunflower soapstock and volatile matters were determined. The trial was lasted in 49 days. The highest feed consumption and feed efficiency values were determined in broiler group fed acidulated soapstock. The lowest feed consumption and the highest average live weight values were found in the group fed the diet containing sunflower crude oil. It was concluded that the use of by-products of oil industry in broiler diets as energy source will use without any harmful effect on broiler performance and contain more omega-3 fatty acids which is very important for human health.
Japon Bıldırcınların Rasyonlarında Yosun Ekstraktı Kullanımı: 1.Yosun Ekstraktının Büyüme Üzeri?ne Etki?leri?
(Selçuk Üniversitesi, 1995 Ocak) İnal, Fatma; Coşkun, Behiç; Çelik, İlhami; İnal, Şeref; Gülşen, Nurettin; Yener, Zabit
Two trials were conducted in this study investigating the possibilities of a seaweed extract from Ascophyllum nodosum (Maxicrop) in Japanese quails. In the first trial, total 336 day old quails were used. During 5 weeks, the animals fed diets containing 0, 0.01, 0.1 and 1 % extract. The effects of Maxicrop on body weight, daily gain, feed intake, feed efficiency, histologic changes in lymphoid tissues and some carcass parameters in quails were investigated. In the second trial, total 20 day old Japanase quails were divided 4 groups. Extract was added to basal diet at the levels of 0, 1, 2 and 4 %, and whether its toxic effects were determined. The trial was lasted at 4 weeks. The results of this study were summarised as follows: Body weights and daily gains were not affected from of seaweed extract. In the group fed 1% extract feed intake increased while feed efficiency decreased (P<0.05). No effect of extract on histological characteristics of lymphoid tissues and some carcass parameters was determined. It was found that seaweed extract up to 4 % in the diets of quails no pathological lesions.
Japon Bıldırcınların Rasyonlarında Yosun Ekstrakti Kullanımı: 2. Yosun Ekstraktının Yumurta Veri?mi? Üzeri?ne Etki?leri?
(Selçuk Üniversitesi, 1995 Ocak) İnal, Fatma; Coşkun, Behiç; Çiftçi, M. Kemal; Gülşen, Nurettin
Two trials were conducted in this study. In the first trial, total 72 female Japanese quails aged 5 weeks were used. During 8 weeks, the animals fed diets containing 0, 0.01, 0.1 and 1 % Maxicrop extracted from Ascophyllum nodosum. The effects of Maxicrop on egg production, egg weight, feed intake, feed efficiency, body weight and egg yolk color in quails were investigated. In the second trial, total 20 Japanase quails (8 males+12 females) at the age of 8 weeks were used. Maxicrop was added to basal diet at the levels of 0, 1, 2 and 4 %, and whether its toxic effects were determined. The results of this study were summarised as follows. 1. No positive effect of seaweed extract on egg production, egg weight, feed efficiency and body weight was determined. 2. Seaweed extract affected positively to yolk color. 3. Seaweed extract may use in the diets of laying quails up to 4 % without deleterious effects.
Farklı Yumurtacı Hi?bri?t Tavuklarda Mozai?k Taşının Yeme Deği?şi?k Şeki?llerde I?lavesi?ni?n Veri?m ve Kabuk Kali?tesi? Üzeri?ne Etki?leri?
(Selçuk Üniversitesi, 1995 Ocak) Coşkun, Behiç; Işcan, Kaan M.; Kurtoğlu, Varol; Apaydın, Seval
In this study, total 324 laying hens were used. Hens were divided 9 groups to 3x3 factorial design. Three commercial laying hybrits groups were Hysex Brown (HB), Hyline W-77 (HY) and Babcock B-300 (BB) and 3 various limestone feeding groups were 8.5 % finely ground limestone (K), 8.5 % grit limestone (G) and 8.5% finely ground limestone + ad lib. grit limestone (+G). Laying performance and egg shell quality were measured during 12 months. Egg yield of +G was lower than the others (p<0.01). But significant interaction was found between hybrid and feeding groups (p<0.05). The negative effect of +G was not seen in HY group. Spesific gravity (SG) of +G was higher than other two groups (p<0.01). SG values were 1.086, 1.084, 1.087 g/cm3, respectively, in groups HB, HY, BB. Avarege egg weight of HB was the heaviest than the other two hybrids. +G group concumed more feed for 1 kg egg than K group, this values found as 2.00, 2.10, 2.15 kg, respectively, in K, G and +G groups. There were no significant differences in mortality rates among groups. As a result the positive effects of ad lib. grit limestone feeding was seen in HY hybrid, but in the other hybrids, ground limestone was given the best result.
Genetic Aspects Of Growth, Feed Efficiency and Effects Of Selection On These Traits In Mice: A Review
(Selçuk Üniversitesi, 1993) Çetin, Orhan
Bu derlemede farelerde büyümenin genetik yönü farklı yemleme rejimleri altında yapılan uzun ve kısa süreli seleksiyon çalışmalarının canlı ağırlık kazancı, yemden yararlanma ve yem tüketimi üzerine etkileri incelendi. Hatlar arası ve hatlar içi varyasyonlardan canlı ağırlık ve büyüme hızı için hesaplanan genetik parametreler; aslında canlı ağırlık, canlı ağırlık kazancı, yem tüketimi ve yemden yararlanma yönünde yapılan seleksiyonlardan indirek olarak hesaplanmıştır. Yemden yararlanma ve diğer karekterler arası ilişkiler geniş olarak özellenmiştir Üzerinde seleksiyon uygulanan karekterler kısa süreli seleksiyonda, uzun süreli seleksiyona göre kalitatif olarak farklılık gösterirler Kısa süreli seleksiyonda seleksiyonun etkisi karekterler arasındaki genetik korrelasyonlara bağlı iken, uzun süreli seleksiyonda ise genotipik ve fenotipik korrelasyonlara bağlı olmayıp tabii ve direk seleksiyon etkisi altındadır.
Bi?r Yosun Ekstraktinin (Maxicrop) Yumurtacı Tavuklarda Veri?m Üzeri?ne Etki?leri?
(Selçuk Üniversitesi, 1993) Coşkun, Behiç; İnal, Fatma; Şeker, Erdoğan; Gülşen, Nurettin; Arık, H. Derya
In this study, the effects of seaweed soluble powder (maxicrop), used as growth promoter in plants on egg production, feed intake, feed efficiency and egg yolk color in hens were investigated Total 108 hens aged 44 weeks were used and three groups were designed During 12 weeks, the animals fed control feed, the feed containing 0.1 % and 1 % seaweed powder. Later, all groups fed control ration during 5 weeks. In first period, average egg production in groups were 68.23, 74.45 and 62 05 %, respectively (p<0.05) Feed intake for 1 kg eggs was lower in the group fed % 0.1 seaweed powder. It was found, the seaweed powder affected positively to yolk color, but didn't to feed intake. As a result, to increase egg yield, seaweed powder may use in poultry diets but it is needed additional researches about this area.
Farklı Ebeveyn Ağırlığına Sahi?p Broyler Hibritlerde Yeti?şti?rme Performansı, Kesi?m ve Karkas Özellikleri
(Selçuk Üniversitesi, 1994) İşcan, Kaan Muhsin; İnal, Şeref; Dere, Süleyman; Kırıkçı, Kemal; Tepeli, Cafer
In this study, the effects of different broiler parents' body weights on performance, slaughter and carcass traits were investigated in broilers. For this pur pose, broiler parents were divided into three different live-weight groups at 26th week. Broilers obtained from each group were raised along 49 days in different floor pens, Head, feet, viscera, wings, thighs, drumsticks and breast weights and some measurements of the breast were recorded at broilers slaughtered. Dressing percentages and rates of carcass parts were estimated. According to data, broilers obtained from dam of which body weight is below 3000 g and sire of which body weight is below 4000 g at sexual maturity had significantly less live-weight, carcass, thigh, drumstick, wing and breast weights than the others (P<0.05). There were no statistical differences for percentages of head, feet, wings and dressing percentages between groups.
Farklı Di?kalsi?yumfosfat Kaynaklarının Yumurta Tavuklarında Veri?m ve Kabuk Kali?tesi? Üzeri?ne Etki?si?
(Selçuk Üniversitesi, 1994) Coşkun, Behiç; Azman, M. Ali
This study was conducted to investigate four different Dicalciumphosphate's (DCP) produced in Turkey and two different imported DCP's and their effects on egg production and egg shell quality of two different strain laying hens. In order to investigate the effects of P sources on egg productivity and the quality of egg shell, 480 white and 480 brown laying hence were used. The experiment took 180 days to finish and feed consumption, egg yield, egg weight, feed conversion, shell thickness, shell weight, proportion of egg shell, and abnormal eggs were determined and evaluated Daily feed consumption was found 130.4 g as the highest level in (-) control group showing the significant differences from other groups (P < 0.05) and the dif ferences between the groups with additional P were found as non significant (P > 0.05) Related to egg yield and egg weight, the groups did not show significant differences (P > 0.05) . The lowest and the highest feed conversion value were found as 3.38 and 2.88 the (-) control and imported DCP II, respectively. Specific gravity (SG), which is used to determine the quality of egg shell, have not been affected by rations (P> 0.05). The best SG value was obtained as 1.086 in the (-) control group. The values of SG for the other ration groups were found 1.084 in the imported DCP's and 1.082, 1.084, 1.084 and 1.084 in the domestic DCP. The ratio of shell weight / egg weight is an other criteria to determine the quality of egg shell. These proportions were calculated 9.11 and 9.14 for the imported DCP's, 8.87. 9.04, 9.07 and 9.05 for the domestic DCP's, respectively The differences between the rations were not significant (P>0.05). As a result, the effects of different P sources on egg yield and egg shell quality were not significant

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