10 АНГЛІЙСЬКА КНИЖКИ ПОВ'ЯЗАНІ ІЗ «CHIN BALL»
Дізнайтеся про вживання
chin ball з наступної бібліографічної підбірки. Книжки пов'язані зі словом
chin ball та короткі уривки з них для забезпечення контексту його використання в англійська літературі.
1
Principles and Applications of Domestic Animal Behavior: An ...
Some beef cattle (B. taurus) breeders fit 'chin-ball' marking halters on their bulls (
Fig. 9.12) to mark cows that have been mounted. The chin-ball marker works like
a ballpoint pen under the bull's chin, leaving a telltale ink line on the cow's back ...
2
International Livestock Centre for Africa Annual Report 1988
In three separate phases, the experiment evaluated the efficiency of a chin-ball
marker, the Kamar Heat Mount Detector and tail paint in heat detection. The
occurrence of oestrus was monitored by assaying plasma progesterone levels in
...
ILCA, Addis Ababa (Ethiopia), International Livestock Centre for Africa, Addis Ababa (Ethiopia)
3
Modern Livestock & Poultry Production
Another type of commercial heat detector is the chin-ball marking device. It is a
special halter with a cone-shaped unit containing a stainless steel ball-bearing
attached to the underside of the halter. It contains a marking fluid that is available
in ...
James Gillespie, Frank Flanders, 2009
4
Dairy Cattle Fertility & Sterility
The advantage of a chin-ball marker is that cows in heat need not be observed "
standing." Vasectomized bulls are altered surgically so that mating may occur,
but sperm transport is blocked. Gomer bulls are altered surgically to prevent
contact ...
... are sexually aggressive so that they are inclined to mount, and thus identify,
oestrous cows. They are more effective if they are equipped with some device for
marking the mounted cows. One such device – a chin ball marker – is shown in ...
Peter J. H. Ball, Andy R. Peters, 2008
6
New Zealand Journal of Agricultural Research
After calving, vasectomized yearling Angus bulls each equipped with a chin-ball
mating harness (Lang et al. 1968) were run with the cows to facilitate
observations on the interval from calving to first oestrus. The bulls were rotated
between ...
7
Economic Analyses of Reproduction Management Strategies and ...
Cows Heifers □ Visual heat detection without aides □ Visual heat detection
without aides % cows % heifers □ Passive mount detectors □ Passive mount
detectors % cows % heifers □ Kamar □ Kamar □ Chin ball markers □ Chin ball
...
8
New Zealand Journal of Agricultural Research
Vasectomised (teaser) bulls, fitted with "chin- ball" mating harnesses, joined the
heifers in March each year when they were 6-8 months old. Fresh mating marks
were recorded weekly and teaser bulls were rested in alternate months.
9
New Zealand Journal of Agricultural Research
Vasectomised bulls equipped with a chin-ball harness (Lang et al. 1968) were
run with the cows immediately after calving, with two bulls to each 50 cows. The
cows were recorded for oestrous activity. Entire bulls, also fitted with chin-ball ...
10
New Zealand Journal of Agricultural Research
MATERIALS AND METHODS Experiment I All heifers from the time of weaning
were run with vaseciomised bulls fitted with chin-ball harnesses. At an average
age of 13 months they were allocated to either a group treated with ...
НОВИНИ ІЗ ТЕРМІНОМ «CHIN BALL»
Дізнайтеся, що обговорювала національна та міжнародна преса, і як термін
chin ball вживається в контексті наступних новин.
How to identify heifers in heat
They will be dressed with a chin ball harness to mark the heifers as the teaser mounts to identify animals in heat and ready for the AI straw. «Westmeath Examiner, Квітень 15»
