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The article is devoted to the important problem of nutrients’ preservation of fodder grain with increased humidity. The aim of the study was to establish the preservative properties of probiotic preparation KT-L 18/1 of probiotics selection laboratory of ISMAV NAAS and the effectiveness of feeding...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Publishing House of the Institute of Agriculture of the Carpathian Region of NAAS
2021-09-01
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| Series: | Передгірне та гірське землеробство і тваринництво |
| Subjects: | |
| Online Access: | https://journals.isgkr.science/index.php/phzt/article/view/304 |
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| Summary: | The article is devoted to the important problem of nutrients’ preservation of fodder grain with increased humidity. The aim of the study was to establish the preservative properties of probiotic preparation KT-L 18/1 of probiotics selection laboratory of ISMAV NAAS and the effectiveness of feeding preserved with this preparation flattened grain to repair heifers and lactating cows in comparison with the chemical preservative – carboammonium salt (CAS). In the laboratory during 2018–2019, the chemical composition of flattened corn grain samples (humidity 29.0 and 31.5%) was determined, namely: without preservatives, with the chemical preservative CAS and with the probiotic preparation KT-L 18/1 after 70 days of storage. It was established that the preservation of dry matter as an integral indicator of feed nutrient content according to the variants of corn samples was: 95.6–98.4; 98.9–99.4 and 100%. To clarify the microbiological processes in these samples, the quantitative and group composition of the microflora was determined, namely lactic acid bacteria (LAB), aerobic bacilli, fungi and yeasts in the dynamics (after 15, 30 and 70 days of storage). It was investigated that the feeding of flattened corn grain (canned with KT-L 18/1 as part of the grain mixture – 15% by weight) to repair heifers and lactating cows does not adversely affect the morphological parameters of their blood, increases the concentration of total protein, its albumin, γ-globulin, and in cows also β-globulin fractions. The increase in the concentration of albumin in the repair heifers of the experimental groups led to an increase in the protein index, which is evidence of more efficient protein metabolism in their body compared to control and positively correlates with the average daily gain of live weight. The average daily live weight gain in the experimental groups was 528 and 538 g and were 4.6 and 6.3% higher than in the control (505 g) respectively. Analysis of the chemical composition of milk showed a probable increase in dry matter content, and hence the density of milk from cows, which received a flattened corn grain treated with KT-L 18/1, mainly by increasing the casein fraction of total protein. The average daily milk yield per 100 days of the accounting period in the experimental groups was 16.1 and 16.5 kg respectively, and were 1.9 and 4.5% higher than in the control (15.8 kg).
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| ISSN: | 0130-8521 2786-5231 |