scholarly journals Effect of Phosphorus Supplementation on Growth Rate, Blood Minerals, and Conception Rate of Dairy Heifers

1977 ◽  
Vol 60 (12) ◽  
pp. 1932-1940 ◽  
Author(s):  
C.H. Noller ◽  
A.G. Castro ◽  
W.E. Wheeler ◽  
D.L. Hill ◽  
N.J. Moeller
Keyword(s):  
Growth Rate ◽  
Conception Rate ◽  
Dairy Heifers

scholarly journals THE EFFECT OF THE DOE WEIGHT ON HER REPRODUCTIVE EFFICIENY

2021 ◽  
Vol 22 (1) ◽  
pp. 131-142
Author(s):  
Mohammad Ebrahim Ahmed ◽  
Hussain Yawr Hussain
Keyword(s):  
Growth Rate ◽  
Litter Size ◽  
Conception Rate ◽  
The Other ◽  
Gestation Period ◽  
Reproductive Efficiency ◽  
Litter Weight ◽  
The Third ◽  
Other Hand

Thirty-six local dose have been used and were divided in to three groups sacording to weight, in each group twelve dose. In the first group the weights of the dose were higher than ( 2.5 kgs) and less than (3 kgs). The second groups was higher than 3 kgs) and less than (3.5 kgs). The third group was higher than (3.5 kgs) and less than (4 kgs). The aim of this study was to obtain the effect of doe weight on her reproductive efficiency (gestation period, litter size, litter weight at birth and weaning, growth rate of offspring preweaning, conception rate and preweaning mortility).  The weight of the doe had no significant effect upon the gestation period and this period was 30.9, 31.2, 31.3 days for the three groups respectively, on the other hand the litter size was affected significantly by doe weight and litter size was at birth and preaweaning (5.1 , 5.8 and 6.2), (4.5, 5.3 and 5.7) for the three groups respectively. The offspring weight at birth and weaning was affected significantly by doe weight and this weight was (40.1 , 48.2 and 53.3 gms), (203.6, 227.5 and 233.8 gms) for the three groups respectively while the conception rate was not affected by doe weight. The mortility percentage in the prewaning period was not significantly by doe weight

scholarly journals Conception Rate, Growth, and Lactation of Dairy Heifers Treated with Recombinant Somatotropin

1990 ◽  
Vol 73 (1) ◽  
pp. 73-77 ◽  
Author(s):  
E.E. Grings ◽  
D.M. deAvila ◽  
R.G. Eggert ◽  
J.J. Reeves
Keyword(s):  
Conception Rate ◽  
Dairy Heifers ◽  
Recombinant Somatotropin

The effects of grinding, either with or without NaOH treatment, on the utilization of straw by yearling dairy cattle

1981 ◽  
Vol 96 (1) ◽  
pp. 159-165 ◽  
Author(s):  
T. Smith ◽  
W. H. Broster ◽  
Valerie J. Broster ◽  
J. W. Siviter
Keyword(s):  
Growth Rate ◽  
Dairy Cattle ◽  
Wheat Straw ◽  
Barley Straw ◽  
Fixed Amount ◽  
Dairy Heifers ◽  
Naoh Treatment ◽  
Voluntary Intake

SUMMARYProcessed straw, both ground and ground–NaOH treated, has been compared with long straw in diets of straw and concentrates fed to yearling dairy heifers. Protein allowances were varied by the addition of fishmeal.Improved growth rate was consistently observed with those animals receiving fishmeal. When a fixed amount of barley straw was offered neither digestibility nor growth was affected by the form of the straw. With wheat straw grinding–NaOH treatment resulted in increased growth when fed in diets containing some long roughage. Voluntary intake of straw was additively increased by grinding and by treatment with 5% (w/w) NaOH. Ground-NaOH treatment of straw increased in vitro digestibility.

Effect of rationing grass on the growth rate of dairy heifers and on output per acre, with a note on its significance in experimental design

1963 ◽  
Vol 60 (3) ◽  
pp. 371-380 ◽  
Author(s):  
W. H. Broster ◽  
Valerie J. Tuck ◽  
C. C. Balch
Keyword(s):  
Growth Rate ◽  
Weight Gain ◽  
Dry Matter ◽  
Live Weight ◽  
Maximum Output ◽  
Flowering Stage ◽  
Live Weight Gain ◽  
Dairy Heifers ◽  
Low Levels ◽  
Point Level

1. A series of three experiments were performed to examine grass as a food for dairy heifers.2. Indoor feeding resulted in lower intakes of herbage and slower growth but gave greater outputs per acre of animal days and live-weight gain than grazing.3. The maximum consumption and growth rate, obtained on young grass, were 2·84 lb. herbage dry matter per 100 lb. live weight per day and 2·2 lb. live-weight gain per day for grazing stock. The corresponding figures for indoor feeding were 2·49 lb. herbage dry matter per 100 lb. per day and 1·34 lb. live weight gain per day.4. Live-weight gain per day was linearly related to herbage dry matter intake from 1·48 to 2·48 lb./ 100 lb. live weight/day.5. Intake of herbage and growth rate only fell after the herbage came into full flower.6. Increased stocking rate had small effects on growth rate because the animals grazed the paddocks more heavily.7. 2·6–3·0 lb. grass dry matter offered per 100 lb. live weight per day was judged an adequate ration for yearling heifers. This gave growth rates of 1·60 lb./day on herbage up to the flowering stage and a consumption of 88% of the available herbage.8. As an experimental technique zero grazing was found inadequate to replace grazing since it fails to reproduce similar intakes and rates of production. It permitted the reduction of intake to sufficiently low levels that live-weight gain per animal and per acre were reduced.9. The greatest output per acre was found to occur between limits of intake per day of 1·8–2·4 lb. herbage dry matter per 100 lb. live weight. Above the point of maximum output per acre level of feeding had little effect on production per animal and rate of stocking controlled output per acre. Below this point level of feeding controlled production per animal. The case is advanced that these latter levels of feeding are necessary in grassland experiments.

scholarly journals Effects of feeding treatment on growth rate and performance of primiparous Holstein dairy heifers

2021 ◽  
Vol 1 ◽  
pp. 1-None
Author(s):  
Yannick Le Cozler ◽  
Julien Jurquet ◽  
Nicolas Bedere
Keyword(s):  
Growth Rate ◽  
Dairy Heifers ◽  
And Performance

EVALUATION OF AN ALFALFA SILAGE-CORN SILAGE FEEDING PROGRAM FOR DAIRY HEIFERS FROM 200 TO 300 KG BODY WEIGHT

1987 ◽  
Vol 67 (3) ◽  
pp. 873-876
Author(s):  
A. S. ATWAL ◽  
T. R. BATRA
Keyword(s):  
Growth Rate ◽  
Body Weight ◽  
Chemical Composition ◽  
Key Words ◽  
Corn Silage ◽  
Dairy Heifers ◽  
Feeding Program ◽  
Alfalfa Silage

An alfalfa silage-corn silage diet (15% concentrate) was similar in chemical composition to a hay-haylage-alfalfa silage-corn silage diet (25% concentrate). When fed to dairy heifers (238–350 d of age), the two diets resulted in very similar rates of gain (969 vs. 950 g d−1), heart girth and withers height. Heifers of both of these groups experienced considerable breeding problems. In a silage diet, grain content and its cost may be further reduced to obtain the desired rate of gain of about 700 g d−1 for dairy heifers growing from 200 to 300 kg body weight. Key words: Silage diet, growth rate, dairy heifers

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