PRODUCTIVITY OF COWS OF RED-MOTLEY BREED IN DEPENDING ON BODY TYPES

• Main Authors: Lyubov Valentinovna Efimova, Nataliya Mikhajlovna Rostovtseva, Tatyana Vyacheslavovna Kulakova, Olga Valerievna Ivanova, Evgeniy Anatolievich Ivanov
• Format: Article
• Language: English
• Published: Science and Innovation Center Publishing House 2017-01-01
• Series: В мире научных открытий
• Subjects: крупный рогатый скот; красно-пестрая порода; молочная продуктивность; экстерьер; линейная оценка; тип телосложения; Красноярский край
• Online Access: http://journal-s.org/index.php/vmno/article/view/9606
• ISSN: 2072-0831; 2307-9428

Further intensification of dairy farming provides increase of productive and breeding qualities of animals, introduction of advanced technologies and methods of selection, which is only possible in the conduct of purposeful breeding for obtaining highly with strong constitution, which have a well-developed dairy forms and suitable for use on large mechanized farms and complexes. Important place should be given to assessing the exterior of animals. Conducting of selection by the type of animal body, taking into account the relationship with productivity will contribute to the creation of highly productive herds dairy cattle of the desired type. The article shows the influence of the type of body on productivity of dairy cows. The highest level of milk production (milk yield of 6415.8 kg, fat and protein content in milk – 4.02 and 3.14%) had cows with an estimate of the body type «good», the difference with contemporaries types of «very good» and “good plus” by milk production amounted to 31.4 and 132.8 kg, of milk fat content – 0.15 and 0.17%, the protein content in the milk – 0.19 and 0.15%. In determining the relationship between the features of the exterior and milk production established significant correlation coefficient values for individual pairs of features. Cows with the body type “good”, had the high the relationship between milk production and indicators of evaluation marks by system A for height in the sacrum – 0.72, the width rump – 0.84, the location of the front teats – 0.93, by system B – for a group of features, that characterize the udder – 0.84.