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Slaughter rates in young pigs when fed with protein-vitamin mineral supplement Intermix

Pork is produced on little component grain diets with dry type of feeding on the farms of different organizational forms. So, under such conditions, it is quite difficult to balance diets with recommended feed elements without the use of concentrate supplements of different composition.

The use of modern feed supplements in pig diet provides high growth rate and average daily weight gain of 700–800 g and more, which reduces the time to reach slaughter condition – live weight 110–120 kg.

The new developments include protein-vitamin mineral supplement Intermix, produced by Ukrainian company Ltd "Interagrotech" to the pig’s diets of all technological groups under the brand Intermix. Modern criteria regarding the composition of protein-vitamin mineral supplements for feeding phase during growth of pigs are taking into consideration. This requires scientific justification.

The aim of the study was to investigate the slaughter rates in young pigs that are raised for meat, while feeding with protein-vitamin mineral supplement Intermix. The research was conducted on three groups of young pigs of large white breed, with 12 pigs each. The initial live weight was 18,3 kg.

The main period of the experiment was divided into three feeding phases  according to the increase of live weight during growth. Experimental young pigs were fed with the same amount of two options of new protein-vitamin mineral supplements in the phases.

Thus, during the feeding phase 20–35 kg the animals of the second group received protein-vitamin mineral supplement Intermix PV-20 % (starter) with the main diet, at 35–65 kg – Intermix VS-15 % (grower-finisher) and at 65–110 kg – Intermix VS-10 % (grower-finisher).

In the third group young pigs received protein-vitamin mineral supplement Intermix VS-20 % (super starter) at 20–
35 kg, then Intermix VS-15 % (grower) at 35–65 kg and Intermix VS-10 % (finisher) at 65–110 kg.

When reaching a live weight of 100–110 kg, the control slaughter of three pigs from each group was carried out and slaughter products were accounted.

Studies have shown that feeding of young pigs with protein-vitamin mineral supplement Intermix has positive effect on slaughter rates of pigs. Thus, pre slaughter live weight of the animals in both experimental groups, compared to control, increased by 11,0 and 7,63 % (P<0,05, respectively 2nd and 3d groups), slaughter weight by 14,0 and 12,7 % (P<0,05), carcass weight by 11,0 and 7,65 % (P<0,05).

These rates were slightly better in the second group of pigs who received protein-vitamin mineral supplement Intermix 15 % (grower) in the diet during the feeding phase from 65 to 110 kg. Pre slaughter live weight increased by 11,3 kg, slaughter weight by 10,68 kg, carcass weight by 7,1 kg. The carcass yield of pigs in all three groups was practically similar.

In accordance with the increase of pre slaughter live weight in animals of the experimental groups, the weight of by products was  also greater – head with ears in 1,3 times, legs – in 1,2 times, skins with tail in 1,3 times and the internal fat in 1,4 to 1,8 times respectively in the second and third groups.

The feeding of studied young pigs with protein-vitamin mineral supplement Intermix has no significant effect on the change in mass of internal organs. It is observed only a tendency to its increase in both experimental groups.

The consumption of protein-vitamin mineral supplement Intermix leads to thickening of the subcutaneous fat of pigs in both experimental groups.

During the main period of the experiment, the productivity of animals is characterized by the following indicators: average daily gains are exceeded the control rate in the second group in 70 g, or 9,9 %, in the third in 36 g, or 5,1 %. Their level is 778 and 744 g, compared to control 708 g. The highest rates were in the phase of feeding 35-65 kg, namely: 803 g
(II group), 838 g (III group), compared to 771 g (control).

Key words: young pigs, protein-vitamin mineral supplement, feeding, slaughter weight, carcass weight, by products, fat thickness.

M. Mazurenko


A. Honcharuk


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2015
BTF №2 2015