Effect of bypass fat supplementation on productive and reproductive performance in crossbred cows

2010 ◽  
Vol 42 (8) ◽  
pp. 1749-1755 ◽  
Author(s):  
Nitin Tyagi ◽  
Sudarshan S. Thakur ◽  
Sachin K. Shelke
Keyword(s):  
Reproductive Performance ◽  
Fat Supplementation ◽  
Crossbred Cows ◽  
Bypass Fat

Effect of bypass fat supplementation on productive and reproductive performance of crossbred cows

2020 ◽  
Vol 37 (3) ◽  
pp. 213
Author(s):  
Sajjan Sihag ◽  
Z.S. Sihag ◽  
Sushil Kumar ◽  
S.S. Dhaka ◽  
C.S. Patil
Keyword(s):  
Reproductive Performance ◽  
Fat Supplementation ◽  
Crossbred Cows ◽  
Bypass Fat

Lunar Cycle Influences Reproductive Performance of Crossbred Brahman Cows Under Tropical Conditions

2021 ◽  
pp. 074873042098363
Author(s):  
Alejandro A. Aguirre ◽  
Roberto A. Palomares ◽  
Aitor D. De Ondiz ◽  
Eleazar R. Soto ◽  
Mariana S. Perea ◽  
...  
Keyword(s):  
Reproductive Performance ◽  
Full Moon ◽  
Lunar Cycle ◽  
The Moon ◽  
Crossbred Cows ◽  
Lunar Phases ◽  
Tropical Conditions ◽  
Service Conception ◽  
New Moon ◽  
Postpartum Estrus

Evidence has accumulated over the years indicating that the moon influences some aspects of the reproductive activity in animals and humans. However, little is known about the influence of the lunar cycle on the reproductive performance of cows under tropical conditions, where the environment strongly affects reproduction. This retrospective study was conducted with the aim of assessing the influence of the lunar cycle on some reproductive traits of tropical crossbred cows managed in a pasture-based system. Data from 5869 reproductive records from two commercial farms localized in the Maracaibo Lake Basin of Zulia State, Venezuela, were analyzed. Variables studied were first service conception rate, calving frequency, first postpartum estrous frequency, and pregnancy frequency. In addition to the lunar cycle, the effects of farm, season, and predominant breed were also considered. Data were analyzed using logistic regression and general linear model from SAS. First service conception was affected by lunar phases and predominant breed, but not by farm or season. For frequencies of calving, first postpartum estrus, and pregnancy, there was no main effect of farm, season, and predominant breed, whereas the effect of lunar phases was highly significant. First service conception was significantly greater in waning than in crescent phase of the lunar cycle. Frequencies of calving, first estrus, and pregnancy were highly correlated and showed greater figures around full moon and new moon. In conclusion, lunar cycle influenced first service conception, attaining greater values in the waning phase of the moon cycle. Frequencies of calving, first postpartum estrus, and pregnancy in crossbred cows showed a clear bimodal rhythm, whose greatest values coincided with new moon and full moon.

Reproductive performance of Shorthorn and Brahman crossbred cows in the dry tropics of north Queensland

1979 ◽  
Vol 19 (98) ◽  
pp. 276 ◽  
Author(s):  
RG Holroyd ◽  
PK O'Rourke ◽  
PJ Allan
Keyword(s):  
Reproductive Performance ◽  
Experimental Period ◽  
Ovarian Activity ◽  
Gestation Length ◽  
Variable Effect ◽  
Crossbred Cows ◽  
Lactating Cows ◽  
Dry Tropics ◽  
Significant Difference ◽  
Conception Rates

A study was made (1 970 to 1973) of the reproductive performance of Shorthorn and Brahman crossbred cows grazing pasture in the dry tropics of north Queensland. Breed had a variable effect on the conception rates of lactating cows, with Brahman crossbreds having significantly higher (P < 0.05) conception rates in the first year. The two breeds had similar conception rates in the following year. In the third year, overall conception rates of both breeds were reduced due to a prolonged dry season, with Shorthorn cows having significantly higher (P < 0.01) conception rates than Brahman cows. However, during this dry period, twice as many Shorthorn cows required survival feeding as did Brahman cows. Calving rates followed conception rates closely, prenatal loss in each breed being low. In all years, Shorthorns had significantly earlier (P < 0.05) calving dates than Brahmans. The interval from calving to first recorded ovarian activity was significantly longer (P < 0.05) in Brahman cross than in Shorthorn cows in only one of the three years. There was no significant difference between breeds for the interval from first recorded ovarian activity to conception, but this interval decreased with increasing age of the cow. Breed had a variable effect on gestation length. Brahman cows were generally heavier each year in April and in better condition throughout the experimental period than Shorthorn cows.

Effects of postpartum fat supplementation and source on the reproductive performance of lactating young beef cows grazing cool-season grass pastures

2019 ◽  
Vol 35 (2) ◽  
pp. 185-198
Author(s):  
F. Añez-Osuna ◽  
G.B. Penner ◽  
J. Campbell ◽  
D. Damiran ◽  
M.E.R. Dugan ◽  
...  
Keyword(s):  
Reproductive Performance ◽  
Beef Cows ◽  
Cool Season ◽  
Fat Supplementation ◽  
Cool Season Grass

Influence of rumen bypass fat supplementation during early lactation in tropical crossbred dairy cattle

2019 ◽  
Vol 52 (3) ◽  
pp. 1403-1411
Author(s):  
K.K.T.N. Ranaweera ◽  
M.B.P. Kumara Mahipala ◽  
W.M.P.B. Weerasinghe
Keyword(s):  
Dairy Cattle ◽  
Early Lactation ◽  
Fat Supplementation ◽  
Crossbred Dairy Cattle ◽  
Bypass Fat

Reproductive performance and growth of Shorthorn purebred and crossbred cows

1971 ◽  
Vol 13 (1) ◽  
pp. 7-14 ◽  
Author(s):  
M. H. Fahmy ◽  
G. Lalande ◽  
M. Hidiroglou
Keyword(s):  
Birth Weight ◽  
Reproductive Performance ◽  
The Other ◽  
Crossbred Cows ◽  
Other Hand ◽  
Body Weights ◽  
Calf Mortality ◽  
First Time ◽  
Maximum Body

SUMMARYData were obtained from 27 pure Shorthorn, 22 Angus × Shorthorn, 31 Charolais × Shorthorn and 27 Hereford × Shorthorn cows, during 10 years. Angus × Shorthorn cows required the least number of services per conception (1·17), had the shortest average gestation lengths (280·6 days), and had a calving percentage of 88·2% and birth weight of calf of 29·8 kg. The respective figures for Charolais × Shorthorn were 1·21 services, 281·6 days, 88·3% (the highest) and 32·9 kg (the heaviest), for Hereford × Shorthorn 1·23 services, 283·6 days, 84·4% and 31·6 kg, and for pure Shorthorn 1·20 services, 282·2 days, 82·7% and 29·6 kg. Average calf weight at birth increased with the advance in age of cow up to 5 years, then showed little change. Seventy-two per cent of the crossbred cows calved for the first time at 2 years old compared with 65% of the Shorthorns. On the other hand, Shorthorn cows had the highest twinning percentage (2·9%) and the lowest single calf mortality at birth (1·4%). The maximum body weights of Angus, Charolais, and Hereford crossbreds and Shorthorn cows were 576·8, 655·8, 6254 and 553·8 kg respectively at 7–8 years of age.

scholarly journals Effects of bypass fat on postpartum reproductive performance in dairy cattle

2019 ◽  
Vol 72 (2) ◽  
pp. 195-201
Author(s):  
Surendar Singh Nirwan ◽  
Jitendra Singh Mehta ◽  
Ashok Kumar ◽  
Pramod Kumar ◽  
Arvind Kumar ◽  
...  
Keyword(s):  
Dairy Cattle ◽  
Reproductive Performance ◽  
Bypass Fat

scholarly journals Influence of rumen bypass fat fed with total mixed ration on growth performance in Nili-Ravi buffalo calves

2021 ◽  
Vol 71 (4) ◽  
pp. 2437
Author(s):  
S. AHMED ◽  
M. AAMIR ◽  
M. N. UL-HAQUE ◽  
N. AHMAD ◽  
I.B. MARGHAZANI ◽  
...  
Keyword(s):  
Growth Performance ◽  
Dry Matter ◽  
Body Condition Score ◽  
Body Weight Gain ◽  
Dry Matter Intake ◽  
Buffalo Calves ◽  
Fat Supplementation ◽  
Total Mixed Ration ◽  
Condition Score ◽  
Bypass Fat

This study was conducted to know the influence of rumen bypass fat supplement on growth performance of Nili-Ravi mal buffalo calves. Nili Ravi buffalo male calves (n=12) were randlomly selected and divided into two groups i.e., A and B based on two different levels of age. These groups (A and B) were further divided into two respective subgroups i.e., A1, A2 and B1, B2. Sub groups A1 and BI served as control (without supplement) whilst subgroups A2 and B2 were fed RBF supplement (at the rate of 2.35% of dry matter intake) with basel diet with total mixed ration. Results showed no statistical difference (P>0.05) in dry matter intake, body weight gain and body condition score on rumen bypass fat supplementation. In blood metabolites, rumen bypass fat supplementation increased (P<0.05) blood triglyceride and cholesterol levels, however, it reduced (P<0.05) blood glucose level in Nili-Ravi buffalo male calves. This study suggests that supplementation of rumen bypass fat at the rate of 2.35% per day in TMR possess no impact on growth performance parameters in Nili Ravi buffalo male calves.

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