Bone Characteristics Of Broiler Chickens Fed Diets Supplemented With Solanum Glaucophyllum

The aim of this study was to assess the characteristics of the tibiotarsus of male broilers at 21 and 35 days of age. The percentages of collagenous proteins (CP), non-collagenous proteins (NCP), ash, and minerals (calcium, phosphorus, potassium and sodium), as well as weight of dried and defatted tibiotarsus in natura were determined. A total of 648 Cobb® male broilers were used in a random block design study with 6 treatments, 6 replicates, and 18 birds per experimental unit. The treatments consisted of diet supplementation with 0.0, 0.5, 1.0, 1.5, 2.0, and 2.5 μg of active Vitamin D3 per kg of feed. The birds were weighed at 21 and 35 days of age and one bird per repetition with the mean weight of the experimental unit was slaughtered to collect the tibiotarsus. The organic and mineral composition of the bone was affected by the addition of active Vitamin D3 to the feed. Our results indicate that a dose of up to 1.50 μg of 1,25(OH)2D3/kg of feed is ideal for male broilers between 8 and 35 days of age.37138139

Serum Lipid Profile Of Broilers Fed Diets With Inclusion Of Mango Waste Meal

We evaluated the effect of including 2.5, 5.0, 7.5 and 10.0% mango waste meal (MWM) variety UBA in corn and soybean meal-based diet son the serum lipid profile of broilers. The experimental design was completely randomized, with five treatments and six replicates with 20 birds per experimental unit. Concentrations of creatinine, albumin, total protein, total cholesterol, triacylglycerols (TAG), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C) and very-low-density lipoprotein cholesterol (VLDL-C), were evaluated at the ages of 14, 28 and 42 days, with 30 birds evaluated per age. At 14 days, there was no difference serum creatinine, total cholesterol, HDL, triacylglycerols, total proteins or VLDL-C concentrations as compared with control. Albumin concentration was the highest at the MWM inclusion levels of 5.0, 7.5 and 10.0%. At 28 days, triacylglycerols, VLDL-C and LDL-C were the lowestat 7.5% inclusion whereas at 42 days, these same variables were the lowest with addition of 10.0% meal. At 14, 28 and 42 days of age, the VLDL-C, LDL-C and total TAG contents were found to decrease at mango waste meal inclusion levels of 5.0 and 7.5% in the diets, which maybe considered an indicator of improvements in the metabolic conditions of broilers.3753327333

Efeitos do Ácido L-Glutâmico e da Vitamina D3 nos Fêmures e Tibiotarsos de Pintos de Corte Effects of L-Glutamic Acid and Vitamin D3 on Femur and Tibiotarsus of Broiler Chicks

Um experimento foi conduzido com o objetivo de estudar os efeitos de três níveis (5, 10 e 15%) de ácido L-glutâmico (L-Glu) e quatro níveis (0, 5000, 10.000 e 15.000 UI/kg) de vitamina D3 (VD) nos parâmetros ósseos de pintos de corte machos, Hubbard. Os animais foram criados em baterias aquecidas e alimentados, à vontade, com dietas de aminoácidos purificados de 1 a 14 dias de idade. O experimento foi realizado em esquema fatorial, em delineamento inteiramente casualizado 3 x 4, com quatro repetições de sete aves cada. Observaram-se comprimentos máximos (37,61 e 50,36 mm), com 9,51% de L-Glu e 15.000 UI de VD e 9,99% de L-Glu e 15.000 UI de VD, para o fêmur e tibiotarso, respectivamente. O diâmetro do fêmur (3,62 mm) e tibiotarso (3,17 mm) aumentou até o nível máximo estimado, de 10,49% de L-Glu e 15.000 UI de VD, e 11,04% de L-Glu e 15.000 UI de VD, respectivamente. A resistência máxima estimada para o fêmur (52,47 kgf/mm) foi determinada com 7,57% de L-Glu e 8.978 UI, e a do tibiotarso (43,35 kgf/mm) com 6,24% de L-Glu e 12.591 UI de VD. Não foi observado efeito de tratamento nas concentrações de proteínas colagenosas (PC) no fêmur, que foi constante e igual a 23,44 mg/100 g. As menores concentrações de proteínas não-colagenosas (PNC) (2,5 mg/100 g e 2,15 mg/100 g) foram obtidas com 9,32% e 9,73% de L-Glu, no fêmur e tibiotarso, respectivamente. As maiores concentrações de proteínas totais (PT) no fêmur e tibiotarso foram de 30,04 mg/100 g e 30,03 mg/100 g. As aves alimentadas com 10% de L-Glu apresentaram adequado desenvolvimento dos ossos, baixas concentrações de PNC nos ossos e menor incidência de problemas de pernas.<br>An experiment was conducted to study the effects of three levels (5, 10 and 15%) of L-Glutamic Acid (L-Glu) and four levels (0, 5000, 10,000 and 15,000 IU/kg of diet) of vitamin D3 (VD) on bone parameters of 14 days male broilers, Hubbard. They were fed purified amino acid diets and reared in electrically heated batteries. The experimental design was a factorial 3 x 4 with four replicates with seven chicks each. The length of bones increased up to an estimated level of 9.51% of L-Glu and 15,000 IU of VD for femur bone (37.61 mm) and 9.99% of L-Glu and 15,000 IU of VD for tibiotarsus (50.36 mm). The femur (3.62 mm) and tibiotarsus (3.17 mm) diameters increased up, respectively, an estimated level of 10.49% of L-Glu and 15,000 IU of VD and 11.04% of L-Glu and 15,000 IU of VD. The maximum breaking strength for femur (52.47 kgf/mm) and tibiotarsus (43.35 kgf/mm) was obtained with 8,978 IU and 12,591 IU, respectively. No significant effects were observed on femur collagenous proteins contents (23.44 mg/100 g). On the other side, the smallest contents of non-collagenous proteins (NCP) were observed with 9.32% and 9.73% of L-Glu on femur (2.5 mg/100 g) and tibiotarsus (2.15 mg/100 g), respectively. The highest contents of total protein in femur and tibiotarsus were, respectively, 30.04 mg/100 g and 30.03 mg/100 g. Chicks fed 10% L-Glu and 15,000 IU VD had good development of bones, better performance, lower NCP contents and a lower incidence of leg problems