Insecticide Residues in Milk, DDT Residues in Milk from Dairy Cows Fed Low Levels of DDT in Their Daily Rations

1961 ◽  
Vol 9 (6) ◽  
pp. 481-484 ◽  
Author(s):  
Gunter Zwieg ◽  
L. M. Smith ◽  
S. A. Peoples ◽  
R. Cox
Keyword(s):  
Dairy Cows ◽  
Insecticide Residues ◽  
Low Levels

Insecticide Residues in Milk, Effects of Feeding Low Levels of Heptachlor Epoxide to Dairy Cows on Residues and Off-Flavors in Milk

1960 ◽  
Vol 8 (5) ◽  
pp. 408-409 ◽  
Author(s):  
C. A. Bache ◽  
G. G. Gyrisco ◽  
S. N. Fertig ◽  
E. W. Huddleston ◽  
D. J. Lisk ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Heptachlor Epoxide ◽  
Insecticide Residues ◽  
Off Flavors ◽  
Low Levels

Insecticide Residues in Milk, Residues in Milk from Dairy Cows Fed Low Levels of Toxaphene in Their Daily Ration

1963 ◽  
Vol 11 (1) ◽  
pp. 70-72 ◽  
Author(s):  
Gunter Zweig ◽  
Earl Pye ◽  
Ranjit Sitlani ◽  
S Peoples
Keyword(s):  
Dairy Cows ◽  
Daily Ration ◽  
Insecticide Residues ◽  
Low Levels

Insecticide Residues in Milk, Effects of Feeding Low Levels of Insecticide Residues on Hay to Dairy Cattle on Flavor and Residues in Milk

1959 ◽  
Vol 7 (10) ◽  
pp. 707-711 ◽  
Author(s):  
G. G. Gyrisco ◽  
L. B. Norton ◽  
G. W. Trimberger ◽  
R. F. Holland ◽  
P. J. McEnerney ◽  
...  
Keyword(s):  
Dairy Cattle ◽  
Insecticide Residues ◽  
Low Levels

scholarly journals Insecticide Residues in the Milk of Dairy Cows Treated for Control of Ectoparasites

1968 ◽  
Vol 51 (7) ◽  
pp. 1023-1025 ◽  
Author(s):  
Nasri S. Kawar ◽  
Noubar J. Bostanian ◽  
Samir M. Badawi
Keyword(s):  
Dairy Cows ◽  
Insecticide Residues

scholarly journals A Study of Feeding Low Levels of Thyroprotein to Dairy Cows for a Period of Fifty-Two Weeks

1949 ◽  
Vol 32 (3) ◽  
pp. 257-264 ◽  
Author(s):  
R.G. Swanson ◽  
C.B. Knodt
Keyword(s):  
Dairy Cows ◽  
Low Levels

Insecticide Residues, Endrin Content of Milk and Body Tissues of Dairy Cows Receiving Endrin Daily in Their Diet

1958 ◽  
Vol 6 (7) ◽  
pp. 518-521 ◽  
Author(s):  
Ulo Kiigemagi ◽  
R. G. Sprowls ◽  
L. C. Terriere
Keyword(s):  
Dairy Cows ◽  
Insecticide Residues ◽  
Body Tissues

Effects of feeding low levels of high protein concentrates differing in protein source on milk production of dairy cows

1992 ◽  
Vol 1992 ◽  
pp. 39-39
Author(s):  
S. Fitzgerald ◽  
J. Murphy
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Normal Level ◽  
High Protein ◽  
Distillers Grains ◽  
Protein Concentrate ◽  
Protein Concentrates ◽  
Grass Silage ◽  
Low Levels ◽  
Feed Costs

Studies reported by Mayne (1990) and Slater (1989) have shown that the yield of milk achieved by feeding a low level of a high protein concentrate with a good quality silage fed to appetite was comparable to that obtained by feeding higher levels of a conventional concentrate containing a normal level of protein (160-180g CP/kg). These results would indicate that there is considerable scope to reduce concentrate feeding levels and reduce feed costs when good quality grass silage is available. However, in previous studies at this centre (Murphy, 1987) very low levels (2.4 kg/d) of high protein concentrates (400-450 g CP/kg) fed with a good quality grass silage reduced milk production compared with a moderate level (6 kg/d) of a normal protein concentrate (160-180 g CP/kg).The present study was carried out to clarify the position and to establish the benefit of including a source of undegradable protein, e.g. maize distillers grains or fishmcal in place of soyabcanmeal in the prolein concentrate.

The effects of protein and energy content of compound supplements offered at low levels to October-calving dairy cows given grass silage ad libitum

1992 ◽  
Vol 55 (2) ◽  
pp. 169-175 ◽  
Author(s):  
O. D. Davies
Keyword(s):  
Dairy Cows ◽  
Milk Fat ◽  
Protein Concentration ◽  
Energy Content ◽  
Milk Composition ◽  
Metabolizable Energy ◽  
Additional Energy ◽  
Flat Rate ◽  
Ad Libitum ◽  
Low Levels

AbstractNinety-six October calving, multiparous Friesian dairy cows were given from week 2 of lactation perennial ryegrass silage ad libitum, supplemented with one of four compound foods, offered at a flat rate of 3 kg/day. The compound foods differed in crude protein (CP) concentration (210 (LP) and 350 (HP) g/kg dry matter (DM)), achieved by including fish meal at 50 and 250 kg/t respectively; and in metabolizable energy (ME) concentration (12·8 (LE) and 14·0 (HE) M/kg DM), achieved by adding protected fat (approx. 100 kg/t). There were no significant interactions between supplement type in terms of animal performance. Over an average feeding period of 152 days, milk yields were significantly increased by 0·49 kg/day per 100 g supplementary CP (P < 0·01) and 0·50 kg/day per MJ of supplementary ME (P < 0·05).Increasing the level of supplementary CP had no effect on milk composition but significantly increased yield of milk protein (67 g/day). An increase in supplementary ME significantly reduced protein concentration in the milk (1·1 gjkg) but had no effect on protein yield. Yield of milk fat was significantly increased (76 g/day). The additional energy also significantly improved cow fertility in terms of a reduced interval from calving to both first service and conception.

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