SummaryThis study was conducted to determine effect of different fattening systems on fattening performance and body measurements of Hemsin male lambs. The materials of the study were consisted 39 male lambs weaned at 3 months of age (approximately live weight of 23 kg). In this study, Hemsin lambs were used in three group of extensive (n=13), semi-intensive (n=13) and intensive (n=13). The experiment was conducted for 90 days. Final live weights of groups of extensive, semi-intensive and intensive were 33.32, 41.16 and 42.09 kg, respectively, and for daily live weight gain (DLWG) were 121.11, 201.89 and 213.00 g, respectively. For semi-intensive and intensive of group, feed conversion ratios were 3.44 and 5.35 kg, respectively. As a result, intensive and semi-intensive groups of fattening performance were higher than that of extensive group. The differences among intensive and semi-intensive groups of fattening performance were not statistically significant (P>0.05). The results of this study suggest that semi-intensive group might be appropriate for fattening male Hemsin lambs. Hemsin lambs had a generally similar or lower fattening performance compared to local sheep breeds. Keywords: Hemsin lamb, Fattening systems, Fattening performance, Body measurements Hemşin Erkek Kuzularında Farklı Besi Sistemlerinin Besi Performansı ve Vücut Ölçülerine Etkisi ÖzetBu araştırma, Hemşin erkek kuzularında besi performansı ve vücut ölçülerine farklı besi sistemlerinin etkisini belirlemek için yapılmıştır. Araştırmanın hayvan materyalini, 3 aylık yaşta sütten kesilmiş, 39 baş Hemşin erkek kuzu oluşturmuştur (Yaklaşık 23 kg canlı ağırlığında). Araştırmadaki kuzulara ekstansif (n=13), yarı entansif (n=13) ve entansif (n=13) olmak üzere 3 farklı besi yapılmıştır. Araştırma 90 günde tamamlanmıştır. Ekstansif, yarı entansif ve entansif besi gruplarında besi sonu canlı ağırlıkları sırasıyla 33.32, 41.16 ve 42.09 kg, günlük canlı ağırlık artışları sırasıyla 121.11, 201.89 ve 213.00 g olarak belirlenmiştir. Yarı entansif ve entansif besi gruplarında yemden yararlanma oranları ise sırasıyla 3.44 ve 5.35 kg olarak tespit edilmiştir. Sonuç olarak, entansif ve yarı entansif besi gruplarının besi performansı, ekstansif besi grubundan yüksek bulunmuştur. Besi performansı bakımından entansif ve yarı entansif besi grupları arasında istatistiki bir fark bulunmamıştır (P>0.05). Bu sonuçlara göre Hemşin erkek kuzularında yarı entansif besinin en uygun olacağı ortaya çıkmıştır. Besi performansı bakımından, genel olarak Hemşin erkek kuzuların diğer yerli ırklara göre benzer ve biraz düşük olduğu söylenebilir.

-This study aimed to evaluate the effects of different levels of synbiotic (Syn) on the growth performance, carcass traits, and serum parameters of Japanese quails. A total of 1,500 (750 male and 750 female) Japanese quails were assigned to five treatments, including the control (basal diet) and basal diets with the addition of 0.1, 0.2, 0.3, and 0.4% Syn according to a completely randomized design. Each treatment in the male and female experiment groups consisted of five replicates, with 30 chicks for each replicate. The addition of Syn had no effect on body weight (BW), while the BW of female quails was higher than that of male quails at day 42. The addition of Syn reduced feed intake (FI) and improved the feed conversion ratio (FCR) (P<0.000). The daily body weight gain and FI were significantly higher in female than in male quails and Syn also improved the FCR in the overall experiment. The effect of the addition of Syn on carcass parameters (except for abdominal fat) was not determined. The addition of Syn decreased abdominal fat weight and percentage when compared with the control group. Male quails were found to have higher carcass yield, wing, neck, and other percentages than female quails. However, female quails were found to have higher breast, breast skin, abdominal fat, and visceral organ percentages. The addition of 0.1% Syn to quail ration reduced serum aspartate aminotransferase, high-density lipoprotein (HDL), total protien (TP), and albumin (ALB) levels at day 42 of the trial. The addition of Syn decreased the serum total cholesterol level. Gender was found to have an effect in that female quails were found to have higher total cholesterol, HDL, TP, and ALB levels than male quails. In both genders, the addition of Syn improved the BWG, FC, and FCR in the overall experiment, reduced abdominal fat, decreased the total cholesterol levels, improved the HDL levels, and increased the TP and ALB levels at day 42. The addition of 0.3 and/or 0.4% synbiotic has a positive effect on quails by improving performance and enhancing some serum lipids and protein parameters.

No abstract

This research was conducted to determine the effects of supplementation of chitosan oligosaccharide (COS) on the growth performance, blood parameters, carcass traits, fatty acid composition of breast meat, and apparent nutrient digestibility in broiler chickens. A total of 375 one-day-old Ross 308 male chicks were allocated to a control diet (T1) or diets supplemented with 50 ppm (T2) and 100 ppm (T3) of COS. There were five replicates of 25 chicks for each treatment. All the experimental birds were fed a starter (days 1 - 4), grower (days 15 - 28), and finisher diet (days 29 - 42). No differences were detected among treatments for live weight, gain, feed intake or feed conversion, except that feed intake was depressed in T3 during the grower period. Serum total protein and albumin levels did not differ among the treatments. Serum total cholesterol, low density lipoproteins (LDL), very low density lipoproteins (VLDL) and triglyceride concentrations were reduced significantly by supplementation with COS, whereas the high density lipoprotein (HDL) concentration was significantly lower only for T2 relative to T1. The dressing percentage was significantly higher for T2 and T3 than for T1. Fatty acid composition of the breast meat was unaffected by the treatments. The digestibility of the diet and some of its constituents was affected in a graduated manner by the addition of COS. Thus, supplementation of broiler diets with COS improved carcass yield and had a hypolipidemic effect in improving the serum lipid profile Keywords: carcass, digestibility, hypolipidemic effect, performance

Effects of chito-oligosaccharides and L-carnitine supplementation in diets for ABSTRACTThe aim of this study was to determine effects of dietary supplementation with chitosanoligosaccharides (COS) and L-carnitine, individually or dually, on growth performance, carcass traits and some blood serum parameters in quails. A total of 192, four days old, Japanese quail chicks were allotted four groups, each of which included four replicates (12 birds per replicate). The groups received the same basal diet supplemented with 0 (Control), 150mg/kg chitosanoligosaccharides (COS), 150mg/kg L-carnitine (Carnitine), and 150 mg/kg chitosanoligosaccharides+150 mg/kg L-carnitine (COS+Car.) during the starter (1 to 21 days) and a grower (22 to 42 days) period. The feeding trial shoved that COS, L-carnitine and COS+L-carnitine had no significant effect on live weight, live weight gain, feed consumption and feed conversion. Supplementation with COS+L-carnitine induced higher leg ratio from than that of the Control. There were no differences on serum albumin, total protein, glucose and total cholesterol concentrations. It is concluded that due to the obtained higher leg ratio from COS+Car. group, after analysis of the profit and loss, if is economically profitable, chitosanoligosaccharides+L-carnitine could be added quail diets.Keywords: quail, chitosanoligosaccharides, L-carnitine, growth performance, carcass traits, blood parameters RESUMOO estudo objetivou determinar os efeitos da suplementação com chito-oligossacarídeos (COS) e Lcarnitina, individualmente ou em conjunto, sobre o desempenho, características de carcaça e alguns parâmetros sanguíneos em codornas. Um total de 192 codornas japonesas, com quatro dias de vida foi separado em quatro grupos, cada grupo com quatro repetições (12 aves por repetição). Os grupos receberam a mesma dieta basal suplementada com 0 (Controle), 150mg/kg chito-oligossacarídeos (COS), 150mg/kg L-carnitina (Carnitina), e 150mg/kg chito-oligossacarídeos +150 mg/kg L-carnitina (COS+Car.) durante o período inicial (1 a 21 dias) e de crescimento (22 a 42 dias). A fase de alimentação mostrou que COS, L-carnitina e COS+L-carnitina não tiveram efeito significativo no peso vivo, ganho de peso vivo, consumo de alimento e conversão de alimento. A suplementação com COS+L-carnitina induziu proporção de perna maior que o Controle. Não houve diferenças na concentração de albumina sérica, proteína total, glicose e colesterol total. Conclui-se que devido à proporção maior de perna obtida para o grupo COS+Car., após análise de perda e ganho, se for economicamente viável chitooligossacarídeos+L-carnitina pode ser adicionado à dieta de codornas.