CATTLE. 
155 
It is supposed that a milk cow of medium quality, in this part of the 
country, will give twelve quarts of milk for two months after Calvin- 
seven quarts per day on grass for the next four months, four quarts per 
day for the following two months, and perhaps two quarts per day for 
0n TiiE 0 srA vi\r e i ; ip' n iw^ alt A S K h ?, r 1,500 f ! n ‘T in tbe y ear -* 
lilt M’AH.U OF lOWS.f— A land-owner in the United States, Mr. 
Winn, seems to have had the first practice in spaying cows. The ob- 
ject of the operation was to maintain in the cow, without interruption 
a supply of the same quantity of milk that she gave at the time of spay- 
ing. Notwithstanding the favorable results that Mr. Winn claimed to 
have obtained, the operation remained almost unknown in France until 
a veterinary surgeon of Lausanne (a Swiss), M.Levrat, made known the 
experiments practiced by him, and their effects. The treatise of M 
Levrat ends with the following conclusions i 
“ The effect of spaying seems to me to be, to cause a more abundant and 
constant secretion of milk, which possesses also superior qualities, whence 
the following advantages result to the proprietor : 
“ L r An increase of one third in the quantity of milk. 
milk 2 ’ The CC1 ’ tainty ° f Laving a,most const antly the same quantity of 
“3. Exemption from accidents which may happen during the period 
ImlL W ,en the C ° WS “ 0Unt 6ach 0ther ’ or arc cover ed by too large 
“ 4. Exemption from the risk of accidents which sometimes accom- 
pany or follow gestation and calving. 
“f- T Ea * e in fatting cows, when their milk begins to dry up 
“if" 1 ™ e ’ Spaying is the onl y '"cans of preventing onerous expenses, 
occasioned by cows becoming taurclieres,' which is so frequently the 
case in some countries, that it is ral-e to see cows kept more than two 
r ryr s Wlthoutg f t,n g in this state; as, for example, in the en- 
ZZZJTT* and Lavaux ’ ' vhere th °y are obli ff ed for this reason 
to change all their cows every two or three years, which is quite ruin- 
JJZ* confirmed, after a year’s observations, this fact, that the 
quantity of milk was constantly kept the same after the time of spavin- 
- Vetennary SUrg00n , at Bordeaux . inserted in the Recueil de 
ytlr\ as “ of facts upon tlle spa y in s of cows, that 
nau been acted upon by various proprietors. 
It appears from these facts, which he recounts with many details and 
"■« 1*V0 Jven witiioJ! 
a m ’,, operation, a quantity of milk at least double the 
reseTrdms t ?r ‘ hoy gav , e dur,n g th e preceding years. “After the 
esearches that I have made since I commenced all these experiments 
ftheT eSent r™’ 8ays M ‘ R6g ® re > “ ^is calculation is veryTxacTand 
if the cows continue to give milk during their whole life, in like manner, 
* “ Farmer’s Evening Day-Book.” 
onLf a Tran“lated I 'for'th e ^ ri K rinar y _ Sur ge° n at the Royal Dep6t at Lang- 
**"* * Wr ' ^ ^ AgricoU Journal 
