Hematological parameters and incubation quality of eggs for different levels of tryptophan in the diet of geese of the parent flock


  • V. M. Volovich Institute of Agriculture of the Carpathian region of the National Academy of Agrarian Sciences of Ukraine, Obroshino, Ukraine https://orcid.org/0000-0002-2223-8592
  • S. A. Vovk Institute of Agriculture of the Carpathian region of the National Academy of Agrarian Sciences of Ukraine, Obroshino, Ukraine https://orcid.org/0000-0001-8387-1343
Keywords: geese, gray obroshinsky breed group, feeding, tryptophan, hematological parameters, incubation qualities of eggs

Abstract

The aim of the work was comparative study of the effect of various amounts of tryptophan in the diet of the herds geese on changes in the parameters of protein metabolism in the blood, their eggs laying capacity and the incubation quality of the eggs, as well as the elimination of herbs and their preservation. The research was carried out during the 4-month reproductive period (December-March) on the gray Obroshino breed group of geese in the research enterprise (SE). The experimental farm (Myklashiv) of the Myklashiv Institute of Agriculture of the Carpathian region of NAAS (Myklashiv village, Pustomytiv district, Lviv region). For this purpose, 4 groups of geese-analogues by age and live weight were selected. The control group did not receive synthetic tryptophan supplements for feed additives. The level of this amino acid in this group amounted to 0.16 g per 100 g of mixed fodder. To the diet of the geese of 2-, 3-, 4-th experimental group additionally injected, respectively, 0.04; 0.09 and 0.14 grams of synthetic tryptophan per 100 g of mixed fodder. The conducted studies have shown that increasing the level of tryptophan in mixed fodders of geese with respect to the norms in force in Ukraine from 0.16 to 0.25 g due to its synthetic analogue per 100 g of mixed fodder during the oviposition period increases the hemoglobin level in the blood by 0.6 g %, white blood cells – by 10.2%, ammonium nitrogen – by 10.5%, stimulates fertility and improves the quality of incubation eggs. While analyzing productivity indices of geese, it should be noted that they were the highest in the 3rd experimental group receiving an additive of 0.09 grams of synthetic tryptophan per 100 grams of mixed fodder. The isolation of the caterpillars was the highest in the 3rd group and amounted to 79.3%. An important indicator, as the egg mass was the largest in the 3rd experimental group and was 172.7 grams or 3.1 g more than in the 1st control geese group. The analysis, namely width and length, shows that the most optimal egg shape index was found in the 3rd experimental group (1.8% higher than in the control group). The thickness of the shell of eggs in the experimental and control groups did not change significantly. It has been experimentally proved that the optimization of tryptophan levels in the feed grain of the gray Obroshin genera of geese in the reproductive period has a significant effect on the hematological parameters and the incubation quality of the eggs.

References

Arkhipov, A.V. (1984). Protein and amino acid nutrition of the bird. Moscow (in Russian).

Fialovych, L.M., Kyryliv, Ia.I., & Paskevych, H.A. (2018). Production of geese at using unconventional additions in mixed fodder. Scientific Messenger of Lviv National University of Veterinary Medicine and Biotechnologies. 20(84), 127–130. doi: 10.15421/nvlvet8423.

Lemesheva, M.M. (2008). Amino acid diet of the bird. Livestock Russia, 5, 30–35 (in Russian).

Nutrient Requirements of Poultry (1994). National Research Council. Washington. doi: 10.17226/2114.

Pan, X., Wei, Z., Wang, H., Yu, L., & Liang, X. (2013). Effects of diеtary tryptophan on protein metabolism and related gene expression in Yangzhou goslings under different feeding regimens. Poultry Sci., 92(12), 3196–3204. doi: 10.3382/ps.2012-02953.

Podobed, L.I. (2010). Protein and Amino Acid Food of Agricultural Bird: Structure, Sources, Optimization. Dnipropetrovsk (in Ukrainian).

Sloboda, L., & Sloboda, О. (2018). Reproductive qualities, exterior features and the quality of the pery of obroshinsky gray geese at their dissolution “inside”. Scientific Messenger of Lviv National University of Veterinary Medicine and Biotechnologies. 20(84), 137–142. doi: 10.15421/nvlvet8425.

Vlizlo, V.V. et al. (2012). Laboratory methods of research in biology, livestock and veterinary medicine. Lviv (in Ukrainian).

Volovich, V.M., & Vovk, S.O. (2018). Changes in blood protein metabolism and reproductive qualities of geese for the use of tryptophan supplements in their diet. Materials of the 7th All-Ukrainian Scientific and Practical Conference of Young Scientists “Actual Problems of Ukrainian Agro-Industrial Production: Theory, Practice, Innovations”. (Obošinо village, November 6, 2018). Lviv-Obošinо, 15–16 (in Ukrain-ian).

Volovich, V.M., & Vovk, S.O. (2018). The productive effect of tryptophan additives to geese diet in the reproductive period. Materials of the international scientific-practical conference “Actual problems of modern biology, livestock and veterinary medecine” (Lviv, October 2018). Lviv, 103–104 (in Ukrainian).

Yastrebkov, K., Dorn, V., & Krivenyuk, M. (2001). Trends of amino acid nutrition in poultry farming. Poultry breeding, 51, 388–390 (in Ukrainian).

Zaplatinsky, V.S., & Fedorovich, E.I. (2017). Morphological and biochemical blood indices of obroshinsky gray and obroshinsky white natural group geese ant its depending on their physiological state. Scientific Messenger LNUVMB, 19(79), 140–144. https://nvlvet.com.ua/index.php/agriculture/article/view/2796.

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Published
2019-04-26
How to Cite
Volovich, V., & Vovk, S. (2019). Hematological parameters and incubation quality of eggs for different levels of tryptophan in the diet of geese of the parent flock. Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies. Series: Agricultural Sciences, 21(90), 104-107. https://doi.org/10.32718/nvlvet-a9018