Evaluation of crossbred cows and crossbred bulls
نویسندگان
چکیده
منابع مشابه
Assessment of semen quality in pure and crossbred Jersey bulls.
AIM To compare the seminal attributes of neat, pre-freeze (at equilibration), and post-freeze (24 h after freezing) semen in pure and crossbred Jersey bulls. MATERIALS AND METHODS Total 36 ejaculates (3 ejaculates from each bull) were collected from 6 pure Jersey and 6 crossbred Jersey bulls and evaluated for various seminal attributes during neat, pre-freeze, and post-freeze semen. RESULTS...
متن کاملSelection of Brahman crossbred-breeding bulls based on phenotypic performance
Upazila Livestock Office, Chirirbandar, Dinajpur, Bangladesh A beef breed development project was carried out in the Department of Livestock Services (DLS) in 2009 in selected areas of Bangladesh. Under this project, semen of Brahman bulls were imported from the USA and used to inseminate indigenous cows to produce graded calves. The present study was undertaken to select graded Brahman bulls o...
متن کاملGenetic evaluation of calving ease for Brown Swiss and Jersey bulls from purebred and crossbred calvings.
The objective of this study was to examine the feasibility of implementing routine national calving ease (CE) genetic evaluations of Brown Swiss (BS) and Jersey (JE) sires that include records of crossbred calvings. Records were available for 11,793 BS calvings, 3431 BS-sired crosses, 65,293 JE calvings, and 7090 JE-sired crosses. Evaluations were performed for each breed using only purebred ca...
متن کاملEvaluation of Sperm Viability and Acrosomal Integrity by Flow Cytometry Analysis in Jersey Crossbred Bulls
1 Department of Animal Biotechnology, Madras Veterinary College, Tamil Nadu Veterinary and Animal Sciences University, Chennai-7, Tamil Nadu, India 2 Education Cell, Madras Veterinary College, TANUVAS, Chennai-7, Tamil Nadu, India 3 Translational Research Platform for Veterinary Biologicals, Chennai – 51, Tamil Nadu, India 4 Madras Veterinary College, TANUVAS, Chennai-7, Tamil Nadu, India 5 Cen...
متن کاملEstrus Synchronization and Conception Rate of Crossbred Cows Using Hormones
The present cattle population of Bangladesh is 24.17 million (DLS, 2009). More than 80 percent of this cattle population is indigenous and rests of them are purebreds and crossbreds of different exotic breeds (Friesian, Jersey and Shahiwal) cattle, which is contributing a major share of livestock sub-sector and playing multi-functional roles (supply of milk, meat, skin, manure, carting etc.) in...
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ژورنال
عنوان ژورنال: Kansas Agricultural Experiment Station Research Reports
سال: 1972
ISSN: 2378-5977
DOI: 10.4148/2378-5977.2789