Original scientific paper
FATTENING AND SLAUGHTERING TRAITS OF BLACK SLAVONIAN PIGS FED DIETS WITH AND WITHOUT GREEN FEED (ALFALFA)
Đuro Senčić
; Poljoprivredni fakultet u Osijeku,Sveučilište J.J. Strossmayera u Osijeku, Osijek, Hrvatska
Danijela Samac
orcid.org/0000-0001-9277-3710
; Poljoprivredni fakultet u Osijeku,Sveučilište J.J. Strossmayera u Osijeku, Osijek, Hrvatska
Abstract
Addition of forage, especially green plant material, to the fodder of pigs of more fatty genotypes, such as Black Slavonian pigs, is of multiple importance due to its lower energy content. Compared to the pigs fed with forage mixture only, Black Slavonian pigs fed with rations consisting of both forage mixture and green plant material (Alfalfa), fattened from 30 to 130 kg bodyweight, have a little lower
daily weight gain (520 g : 645 g), lower daily feed consumption (2.47 kg : 2.90 kg), a higher consumption of forage mixture per kg gain (4.75 kg : 4.50 kg) and leaner pig carcasses (45.92% : 39.24%). In turn, Black Slavonian pigs fed rations without green plant material have higher pH1 and pH2 values of meat (6.53 : 6.00 and 5.86 : 5.60), and a higher level of brightness L * (50.78 : 47.87 ), lower water content (67.70% : 71.52%) and protein level (20.40% : 21.58%), and a higher level of crude fat (10.36% : 6.88%), compared to the pigs fed rations consisting of both forage mixture and green plant material. Given the tendency to deposit fat in the trunk, Black Slavonian pigs kept in the semi-open system should be fed rations containing green plant metarial (Alfalfa).
Keywords
Black Slavonian pigs; fattening traits; carcass traits; green plant material
Hrčak ID:
184573
URI
Publication date:
14.7.2017.
Visits: 833 *