Ahmet Şahin

Effects of Dietary Tribulus terrestris L. Powder on Growth Performance, Body Components and Digestive System of Broiler Chicks

Abstract Şahin, A. 2009. Effects of dietary Tribulus terrestris L. powder on growth performance, body components and digestive system of broiler chicks. J. Appl. Anim. Res., 35: 193–195. To test whether Tribulus terretris (TT) vegatative powder can be used as alternative to antibiotics in the diet of broiler chicks, 240 mixed sex day old broiler chicks were divided equally into four treatment groups fed basal diet supplemented with 0.06% alfamune and 0.025% flavomycine (control) or 4, 8, 12 g TT powder per kg. At all levels TT treated birds ate and gained less during 0–35 d. However, during the last week they ate at higher rate and exhibited compensatory growth. TT treated birds did not utilise food efficiently. TT decreased carcass yield (%) and increased weights of proventriculus, ileum + jejunum and empty gut. TT-treated broiler chicks survived as well as antibiotic supplemented ones. The use of TT powder as a feed additive may serve to produce antibiotic free poultry meat for better acceptability among consumers.

Cereals in Choice Feeding of Finishing Broiler Chickens

Abstract Şahin, A. 2003. Cereals in choice feeding of finishing broiler chickens. J. Appl. Anim. Res., 24: 213–217. To examine the choice feeding of cereals, ninety six birds aged 16-d were divided into 4 experimental groups with 4 replication each. Experimental groups were control (C), wheat selecting (WS), sorghum selecting (SS) and maize selecting (MS) group. Control chickens were fed on commercial feed. Choice-fed broiler chickens were offered a choice of a concentrate feed and one of the whole cereals. Choice fed-broiler chickens consumed less protein (from 27.8 g to 23.6 g per bird) in comparison to that of control chickens (P<0.01). Performance and body components, efficiencies for protein, energy and feed were not different among experimental groups (P>0.05). In conclusion, usage of cereals in choice feeding of finishing broiler has a potential for minimising protein cost without any detrimental effect, especially selection of wheat and sorghum.

Vitamin E supplement in honey bee colonies to increase cell acceptance rate and royal jelly production

SUMMARY This study was carried out to determine the effects of different colony feeding methods on queen cell acceptance rates and royal jelly (RJ) production: (1) pollen substitute (PS), (2) PS + vitamin E (PS+VE), (3) sugar syrup (SS), (4) sugar syrup + vitamin E (SS+VE), and (5) no supplementary feed (control, C). Royal jelly production (g per cell) was 0.25, 0.26 0.23, 0.25 and 0.21; average colony yield (g) per harvest 32.1, 33.2, 31.0, 34.6, and 25.0; and total colony production (g) 96.2, 99.6, 93.0, 103.9, and 75.0 in groups PS, PS+VE, SS, SS+VE, and C, respectively. Any form of supplementary feeding improved RJ production relative to controls. Total colony production and average colony yield per harvest were highest in those colonies fed SS+VE or PS+VE. A benefit of supplementary VE was more apparent for sugar syrup than for pollen substitute; total colony production and average colony yield per harvest were significantly higher for SS+VE colonies than for SS, whereas no such benefit was shown between the pollen substitute groups.

Tribulus Terrestris Supplement Does not Work as Muscle Builder for Broiler Chicks

Bu calismada, Tribulus terrestris hazir bitki kapsulunun etlik civcivlerde kas yapici etkisinin belirlenmesi amaclanmistir. 180 adet etlik civciv kontrol, 180 ppm ve 360 ppm olmak uzere 3 gruba ayrilmistir. Canli agirlik, canli agirlik kazanci ve yem tuketimi 6 hafta boyunca haftalik olarak tespit edilmistir. Kontrol yemi 0-21 gunluk yaslarda her bir kiloda 234 g ham protein, 3141 Kcal ME, 22-42 gunluk yaslarda 204 g ham protein, 3199 Kcal ME icermistir. Buyume performansi, kas gelisimi (gogus ve but agirligi) ve sindirim sistemi parcalari belirlenmistir. Tribulus terrestris buyume performansina ve kas gelisimine etki etmemis fakat ileum+jejunum ve bos sindirim sistemi agirligini dusurmustur (P<0.05). Sonuc olarak, Tribulus terrestrisin buyumeye ve kas gelisimine etkisi olmamistir. Bu durum Tribulus terrestris tabletlerinin kanatli hayvanlarda insanlardaki gibi calismamasi ve bu da insan ve kuslarin fizyolojilerinin birbirlerinden farkli olmalari ile aciklanabilir.