Open AccessSOME IDEAS FOR MANAGEMENT AND CONTROL OF COW CONDITIONIN A SUCKLER COW HERD DURING PRE-CALVING PERIOD
Author(s) -
H. Scholz,
AUTHOR_ID
Publication year - 2021
Publication title -
vestnik altajskogo gosudarstvennogo agrarnogo universiteta
Language(s) - English
Resource type - Journals
ISSN - 1996-4277
DOI - 10.53083/1996-4277-2021-206-12-81-88
Subject(s) - ice calving , straw , zoology , dry matter , herd , animal husbandry , silage , biology , total mixed ration , lactation , agronomy , agriculture , pregnancy , ecology , genetics
Cow management and feeding during pre-and post-calving periods is one of the factors of the economic effi-ciency of animal husbandry. There are various methods of feeding lactating cows but at the same time this topic is understudied in Germany. The experiment is based on long-term data on the birth rate and weight of calves at the Eden agricultural enterprise (Saxony-Anhalt, Germany) which was chosen as the main one for the study. The av-erage live weight of calves obtained from first-calf cows was 52 ± 8 kg at birth. The data on the live weight of calves obtained from cows of the first, second, and third lactations are presented. The differences in the live weight of calves revealed immediately after birth. Estimative de-scription of the condition of lactating cows is given. The dependence of the feeding of cows on the quality of the feed material, the content of protein and dry matter is shown. On average, the diet consisted of 99% of forages and had dry matter content of 38 ±6%. The average ener-gy content was 9.8 MJ ME or 5.9 MJ NEL per kilogram of dry matter. Various diets for dry cows were also studied. During the experiment, only the proportions of straw in the diet were changed so that practical conclusions could be drawn. In total, 3 variants were used: TMR with 30% of straw [TMR 1], TMR with 60% of straw [TMR 2] and feed-ing with silage from pure grass after calving. Brief recom-mendations are proposed in the conclusion.