EVALUATION OF DIFFERENT BEDDING SYSTEMS ON COMFORT AND PERFORMANCE OF CROSSBRED DAIRY COWS
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Date
2021-09-06
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Kerala Veterinary and Animal Science University, Pookode
Abstract
The present study was undertaken to evaluate the different bedding systems
on comfort and performance of crossbred dairy cows. Twenty four crossbred cows
with six animals in each group at cattle farm was selected for the study and carried
out for one lactation period spread over three different seasons such as summer
months (Feb-May), monsoon months (June-Sep) and post monsoon months (Oct Jan). The control group (T1) was maintained in concrete floor without any bedding
materials. In (T2) rubber mats of 1.2 m × 1.8 m × 0.025m area were provided on
concrete floor. In (T3) coir pith and (T4) Dried solid manure (DSM) on concrete
floor was provided at the rate of 7.5 cm thickness as bedding. Based on the results of the study cows housed on coir pith and DSM had
prolonged lying times with higher cow comfort index compared to other bedding
materials. Coir pith and DSM bedded cows improved cow hygiene, BCS and body
weight gain with profound increase in milk production and composition. Coir pith
and DSM bedding provided cooler surface which led to efficient heat dissipation
from cow’s body. Milk cortisol level was lower in cows on coir pith and DSM
groups due to adequate lying times which reduced stress. Frequent replace of
bedding lowered APC, CC and TYMC with normal SCC and physiological
parameters. Coir pith and DSM bedding reduced the risk of lameness and mastitis
and increased the ability of the animals to express their natural behaviour. The
nutrient value of coir pith and DSM after the use as bedding materials were
enhanced, which could be used as an excellent organic manure for organic
cultivation. Use of coir pith as barn bedding material is an important management
practice for improving milk production, hygiene and health of cows. This also
reduced stress level, incidence of disease and improves the comfort and overall
welfare of dairy cows. Thus, coir pith and dried solid manure as bedding materials
could be recommended to the dairy farmers compared to rubber mats and concrete
floor bedding for improving cow comfort and improved milk production.
Description
Submitted in partial fulfilment of the requirement for the degree of Doctor of Philosophy in Livestock Production Management