The aim of the present research has been to determine the effect of replacing a part of commercial compound feed with whole triticale grain on the body weight (BW), body measurements, feed conversion ratio (FCR), carcass composition and meat quality of pheasants. The study involved 80 one-d-old common pheasants. From 71 to 112 d of rearing, two diets were administered: a complete commercial diet ad libitum for control pheasants and restricted amounts of a commercial diet (50%) and whole triticale grain (50%) for experimental pheasants. Each treatment consisted of 4 replications, 10 birds each. Introducing whole triticale grain did not cause significant changes in BW, body measurements, feed intake and FCR. The carcasses of 112-d-old pheasants fed whole triticale grain diet showed a significantly lower breast muscle content (%) and a significantly higher content of skin with subcutaneous fat and carcass remainders (p < .05). Breast muscles of pheasants fed commercial compound feed and whole triticale grain exhibited significantly higher hardness, chewiness and gumminess, more palmitic acid and zinc, as well as significantly less sodium, water, linoleic acid, paullinic acid, heptadeconoic acid. There were also significant changes in water and protein, the content of fatty acids in leg muscles, except for myristic acid, pentadecanoic acid, arachidonic acid and nervonic acid. Irrespective of the type of diet, males showed a significantly higher body weight, body measurements and carcass weight, and their breast muscles demonstrated significantly higher WB shear force and the amounts of protein, linoleic acid, potassium, phosphorus, magnesium and zinc.

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The aim of the study was to determine if oxobiodegradable film can be used as an alternative to standard film for silage making in agricultural practice. Whole-crop maize silage covered with oxobiodegradable film was fed as a component of partly mixed ration (PMR) for dairy cows. The oxobiodegradable coating used to cover the silage heap ensured that the fermentation process was normal, as evidenced by the quality parameters (pH 3.8, 72 hours of aerobic stability) and chemical composition of the silages. Fodder covered with biodegradable material contained less ammonium nitrogen than silage with standard foil (55.3 vs. 66.63 g·kg -1 N total, respectively). The concentration of lactic acid was also lower (77.75 vs. 89.65 g·kg -1 dry matter). Feeding whole-crop maize silage covered with oxobiodegradable film had no adverse effect on productivity (daily 30.65 vs. 31.17 kg fat corrected milk -FCM respectively), composition (protein -3.33 in the experimental group vs. 3.3% in the control group, fat -3.89 vs. 3.79%) and some technological suitability of milk.Keywords: aerobic stability, biodegradable film, milk quality, milk yield, silage Streszczenie Celem badań było ustalenie, czy można w praktyce rolniczej zastosować do produkcji kiszonek folię oksybiodegradowalną jako alternatywę folii standardowej. Kiszonkę z całych roślin kukurydzy okrytą folią oksybiodegradowalną podawano jako komponent dawki częściowo wymieszanej (PMR) dla krów mlecznych. Folia oksybiodegradowalna użyta do okrycia stosu kiszonkowego gwarantowała /18.4.1955 prawidłowy przebieg procesów fermentacji, o czym świadczą parametry jakościowe kiszonek (pH 3,8, 72 godziny stabilności tlenowej) i ich skład chemiczny. Pasza okryta materiałem biodegradowalnym zawierała mniej azotu amoniakalnego niż kiszonka okryta folią standardową (odpowiednio 55,30 vs. 66,63 g·kg -1 N ogólnego). Koncentracja kwasu mlekowego również była niższa (77,75 vs. 89,65 g·kg -1 suchej masy). Skarmianie kiszonek z całych roślin kukurydzy okrytej folią biodegradowalną nie wpłynęło ujemnie na wydajność (odpowiednio 30,65 vs. 31,17 kg mleka dziennie o skorygowanej zawartości tłuszczu -FCM) i skład mleka (białko -3,33 u krów z grupy doświadczalnej vs. 3,3% w grupie kontrolnej; tłuszcz -3,89 vs. 3,79%) oraz wybrane parametry jego przydatności technologicznej.of Central European Agriculture, 2017, 18(4), p.762-772 DOI: 10.5513/JCEA01/18.4.1955 762 Journal of Central European Agriculture, 2017, 18(4), p.762-772 DOI: 10.5513/JCEA01