Tag Archives: feed intake

884-891 L. Šenfelde and D. Kairiša
Effect of Automatic Feeding Station use on fattening performance in lambs and intake activity periods
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Effect of Automatic Feeding Station use on fattening performance in lambs and intake activity periods

L. Šenfelde* and D. Kairiša

Latvia University of Life Sciences and Technologies, Faculty of Agriculture, Institute of Agrobiotechnology, Liela street 2, LV-3001 Jelgava, Latvia
*Correspondence: shenfeldel@gmail.com

Abstract:

Implementation of precise farming technology is very important for productivity increasing of livestock. One of the highest components of the production costs is feeding expenses. An automatic concentrate feeding stations (AFS) can ensure economic feed distribution and intake registration for animals individually. The aim of this research was to study the possibility and benefits of using AFS in fattening of lambs. Results show that during all the research average number of daily visits to AFS per lamb were 13 ± 0.2 visits, average daily live weight gain per lamb was 254 ± 15.7 g. For 1 kg lamb live weight gain 5.35 kg concentrate was used. More intesively acitivity periods of lambs was noted during following hours of day time: 02:00–02:59, 08:00–09:59 and 19:00–20:59. Significant (P ≤ 0.05) moderate positive correlation (r = 0.470) was found between average daily number of visits to the AFS per lamb and total amount of concentrate consumed during the research per lamb. Significant (P ≤ 0.05) strong negative correlation (r = -0.806) was found between average daily number of visits to the AFS per lamb and average amount of concentrate consumed during one visit.

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483-491 A.J. Kryeziu, N. Mestani, Sh. Berisha and M.A. Kamberi
The European performance indicators of broiler chickens as influenced by stocking density and sex
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The European performance indicators of broiler chickens as influenced by stocking density and sex

A.J. Kryeziu, N. Mestani, Sh. Berisha and M.A. Kamberi*

Department of Biotechnology in Zootechny, Faculty of Agriculture and Veterinary, The University of Prishtina, “Bill Clinton” Boulevard, nn, XK10000, Prishtinë, Republic of Kosovo.
*Corresponding author: E-mail: muhamet.kamberi@uni-pr.edu

Abstract:

The aim of this study was to investigate the influence of different stocking densities on the growth performance of Ross 308 broiler chickens up to six weeks of age. A total of 216 one-day broiler chicks were randomly assigned to three treatment groups based on the stocking density: Low (LSD) = 14 chickens m-2, Medium (MSD) = 18 chickens per m2 and High (HSD) = 22 chickens m-2, with four replications. Higher body weight gain (TWG) was observed for the low (2,043.89 g) and medium (2,008.03 g) compared to the high (1,901.51 g) density. The study revealed that chickens of the LSD treatment consumed significantly (P < 0.01) more feed compared to the HSD chickens. High stocking density (22 m-2) tended to improve feed conversion ratio compared to medium (18 m-2) and low (14 m-2) stocking density, but the differences were not significant (P > 0.05). From the results of this study it can be concluded that broiler chicks can be stocked up to 22 chickens m2, as far as required standards are assured.

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160–166 L. Paura and D. Jonkus
Use of automatic system for pig feed consumption control
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Use of automatic system for pig feed consumption control

L. Paura* and D. Jonkus

Latvia University of Agriculture, Faculty of Agriculture, Institute of Agrobiotechnology,
Liela str. 2, LV-3001, Jelgava, Latvia
*Correspondence: liga.paura@llu.lv

Abstract:

The aim of this study was to analyse average daily gain and feed conversion ratio, and to estimate daily gain and feed conversion ratio during the pig fattening period. 100 pigs from the same herd were housed in pens of around 10–15 animals and fed ad libitum with one single-place electronic feeder. Average on-test weight and off-test weight were 34.8 kg and 119 kg, respectively. Average daily gain, average daily feed intake and feed conversion ratio were computed. During investigation the average daily gain was 0.788 kg, the daily feed intake was 2.25 kg and feed conversion ratio was 2.86 kg. The differences in investigated traits between male and female pigs were significant. Generally, male pigs had greater off-test weight (+7.3 kg, p < 0.05), average daily gain (+0.037 kg, p < 0.1) and feed conversion ratio (+0.13 kg) in the fattening period. Average daily gain and feed conversion ratio were also calculated based on 100 kg off-test weight. If pigs will be fattening till 100 kg, than daily feed conversion ratio decreased and is 2.25 kg, but average daily gain increased and is 0.840 kg. The average fattening duration when pig has 100 kg off-test weight was 154.8 days. Phenotypic correlations between production and feeding traits were calculated. Correlation between average daily gain and feed conversion ratio was moderate negative (r = -0.542), pigs with higher average daily gain had better feed conversion ratio.

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