[Danchev, J., 1984. The indigenous primitive breed East Balkan swine in Strandja-Sakar Strandjansko-Sakar collection, Malko Tarnovo.]Search in Google Scholar
[Georgiev, I., Sjarov, Y., Beremski., S, Machev, M., 1959. ‘Results from fattening pigs of Bulgarian White breed and primitive East Balkan one under the conditions of state company “Meat centre’. Scientific articles, Zootechnical faculty 8, 99 (BG).]Search in Google Scholar
[Hlebarov, G., 1921, East Balkan swine. Cooperative Printing Edition, Sofia. [in Bulgarian].]Search in Google Scholar
[Imrich, I., Mlyneková, E., Mlynek, J., Guranič, J., 2016. The influence of sex and hybrid on the fattening parameters of pigs. Acta fytotechnica et zootechnica, 19, (3), 96–98.10.15414/afz.2016.19.03.96-98]Search in Google Scholar
[Marchev, Y., Nedeva, R., 2003. Study on the effect of the temperature and protein level on the performance of growing pigs. Journal of Animal Science 1-2, 22-24. (BG)]Search in Google Scholar
[Marchev, Y., Palova, N., Nedeva, R., Krusheva, D., 2017. Productivity of suckling and growing pigs from east Balkan Breed and its crosses in feeding with organic feeds. Animal Science LIV/3, 32-36 (BG).]Search in Google Scholar
[Nedeva, R., Marchev, Y., Palova, N., Stoeva, K., 2009. Chemical composition of the natural fodder resources used by the East Balkan pig. Journal of Mountain Agriculture on the Balkans 12, (3), 443-454.]Search in Google Scholar
[Palova, N., 2006. Fattening capacities of East Balkan pigs reared organically. Journal of Animal science 5, 19-22 (BG).]Search in Google Scholar
[Palova, N., 2009. Study on the weight development of East Balkan pigs according to their sex and season at two protein levels. Bulgarian Journal of Veterinary Medicine, 12, supl.1, 130 – 134.]Search in Google Scholar
[Palova, N., Krusheva, D., Nedeva, R., Marchev, Y., 2017. Influence of pasture composition and weather conditions on the productivity and behavioral reactions of pigs of East Balkan breed. Journal of Tekirdag Agricultural Faculty, The special Issue 2nd Balkan Agriculture Congress, May, 16-18, 104-109.]Search in Google Scholar
[Palova, N., Nedeva, R., Marchev, Y., Nakev, J., Gineva, E., 2010. Comparative study of the effect from using of processed and unprocessed feeds on the productivity of East Balkan pigs, I. Fattening ability Ecology and future 3, 34-37 (BG).]Search in Google Scholar
[Petrov, A., 1970. Researches on the origin of aborigine domestic pigs. Journal of Animal Science 1, 101-108 (BG).]Search in Google Scholar
[Quiniou, N., Courboulay, V., Salaün, Y., Chevillon P., 2010. Impact of the non castration of male pigs on growth performance and behaviour – comparison with barrows and gilts, 61st Annual Meeting of the European Association for Animal Production August 23rd-27th, 2010 Heraklion, Crete Island, Greece Session 17 “Symposium: Alternatives to castration in pigs”, paper 8, 1-7.]Search in Google Scholar
[Rusev, V., Lazarov, V., Nedelchev, D., Donchev, R., 1979. Physiology of growth and performance of the farm animals, Zemizdat, Sofia (BG).]Search in Google Scholar
[Sandev, S., 1964. Chemical methods for feed analysis (BG).]Search in Google Scholar
[Slanev, S, Stoikov, A, Stefanova, S, Bjalkov, V, & Marinova, P 1992, Estimation of more important fattening and carcass qualities of East Balkan pigs for ecological meat production. Proceedings of the International symposium “Ecology 92”, pp. 344-348.]Search in Google Scholar
[Slanev, S., Stoikov, A., Stefanova, S., Mihailova, M., Marinova, P., 1993. Carcass composition and meat quality in East Balkan pigs. Proceedings of the International symposium “Ecology 93”, September 9-11, Burgas, pp. 100-05.]Search in Google Scholar
[Stefanova, S., Stefanova, I., 2005, ‘Formation and development of some tissue structures in aborigines and culture pig breeds’, Proceedings of the “Balkan scientific conference” – Karnobat, 1, pp. 598-603.]Search in Google Scholar
[Stoikov, A., 2003, Finishing of boars, Shumen (BG)]Search in Google Scholar
[Vasupen, K., Yuangklang, C., Wongsuthavas, S., Panyakaew, P., Mitchaothai, J., Beynen, A.C., 2008. Growth performance, carcass and meat characteristics of female and male Kadon pigs. Journal of Biological Sciences 8, 671-674.10.3923/jbs.2008.671.674]Search in Google Scholar
[Zhelev, A., 1995. Breeding of pigs. Animal breeding 10, 28-29 (BG).]Search in Google Scholar