Download or read book Evaluation of Performance Traits in Brahman Cattle written by Kara J. Matheney and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of these studies were (1) evaluate the relationship between temperament, blood parameters, and performance in Brahman calves (n = 300); (2) evaluate the relationship between residual feed intake (RFI) and reproductive development in Brahman bulls (n = 41). Serum was collected at 24 h and d 21 to 24, and analyzed for total protein (TP) immunoglobulin G (IgG), and cortisol (CS). Calves were weighed at 24 h, weighed and evaluated for temperament using exit velocity (EV) at d 21 to 24, and at 28 d intervals thereafter. Beginning 28 d prior to weaning, and at 28 d intervals through 56 d post-weaning calves were evaluated for pen score (PS) used to calculate temperament score (TS = (EV+PS)/2). The average TS from 28 d prior to weaning and weaning was used to generate temperament groups; calves 1 SD below the mean being calm, those 1 SD above the mean being temperamental and all remaining classified as intermediate. Calf TS influenced WW (P = 0.04) and ADG from birth to weaning (P = 0.03). Serum TP at 24 h affected (P 0.05) WW and ADG from birth to weaning. Serum IgG at 24 h affected (P = 0.03) WW. Brahman bulls (n = 41) were evaluated for RFI, insulin-like growth factor I (IGF-I), temperament, reproductive development, and ultrasound carcass traits. Serum was collected at d 0 and d 70 of the feeding trial and analyzed for IGF-I. Bulls were classified as efficient, intermediate, or inefficient (RFI classification method I) and as efficient or inefficient (RFI classification method II). Bulls were evaluated for temperament at weaning using TS. Temperament influenced (P 0.05) IGF-I concentrations at d 0. Reproductive development was not affected (P 0.05) by TS. Residual feed intake classification did not influence (P 0.05) age at reproductive milestones. Ultrasound carcass traits were not affected by TS or RFI. Serum TP at 24 h was a viable indicator of future growth performance. Temperamental animals had lower growth rates in both studies. Reproductive development was not affected by RFI. BW at reproductive milestones was lower in temperamental bulls.

Download or read book Evaluation of direct and maternal effects on weaning traits in brahman cattle written by J.J. Beltran Bru and published by . This book was released on 1978 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: Data from 1953 to 1976 on weaning wigths and scores of 3,765 Brahman calves were obtained from a private ranch in Central Florida.

Download or read book Some Factors Affecting Production Traits in Brahman Cattle in Mexico written by Manuel Villarreal and published by . This book was released on 1975 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of Performance Characteristics in a Diallel Among Simmental Limousin Polled Hereford and Brahman Breeds of Beef Cattle written by John Wesley Comerford and published by . This book was released on 1988 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of the Brahman Breed as Straightbred and Crossbred for Beef Production in South Central Florida written by Fentress McCoughan Peacock and published by . This book was released on 1977 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: Weaning traits; Post weaning performance; Birth rate; Survival rate; Weaning rate; Production traits; Condition score; Weaning weights.

Download or read book Evaluation of Birth Weaning and Carcass Traits of F1 Calves Sired by Brahman Bulls written by Jeff Wade Kuykendall and published by . This book was released on 1996 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of F1 Cows Sired by Brahman Boran and Tuli Bulls for Reproductive and Maternal Performance Traits and Cow Longevity written by Carl Muntean and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Birth (BWT) (n = 1,335) and weaning weight (WWT) (n = 1,246), pregnancy rate (PR) (n = 1,513), calf crop born (CCB) (n = 1,504), calf crop weaned (CCW) (n = 1,500), cow weight at palpation (CW) (n = 1,662), and cow body condition score (BCS) (n = 1,666) were evaluated from 1994 to 2010 in 143 F1 females sired by Brahman (B), Boran (Bo), and Tuli (T) bulls and out of Angus and Hereford cows. Mouth scores (MS) (n = 253) were assigned to the remaining cows from 2004 to 2009, excluding 2008. Pregnancy rate, CCB, CCW, CW, and BCS were evaluated using a model that consisted of sire of cow breed, dam of cow breed, and calf's birth year/age of cow as fixed effects. Cow within sire of cow within sire breed of cow and sire of cow within sire breed of cow were used as random effects. Birth weight and WWT were evaluated including sex of calf in the same model. Mouth scores were evaluated with two models. When broken and solid mouths were scored 1 and smooth 0, B- and Bo-sired cows (0.87 and 0.83) had higher scores (P 0.05) than T-sired females (0.65). When solid mouths were scored 1 and smooth and broken scored 0, B-sired cows (0.40) were higher than T (0.07) (P 0.05), and Bo (0.30) sired cows were not different from either (P 0.05). The model for MS only included sire of cow breed and calf's birth year/age of cow as fixed effects. Two-way interactions were tested for significance. Calf's birth year/age of cow was important for all traits (P 0.05) except the first MS model. Adjusted means (LSM) for BWT for calves out of cows by B, Bo, and T sires were 34.1, 34.0, and 34.1 kg respectively, and were not different from one another (P 0.05). Least squares means for WWT for calves out of cows by B, Bo, and T sires were 236.7, 217.5, and 197.2 kg, respectively, and were significantly different. For both BWT and WWT, male calves were heavier (P

Download or read book Reciprocal Cross Differences in Brahman Hereford F2 Cows written by Bradley Allen Wright and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Data from 75 F2 Brahman-Hereford cows of four specific breed combinations, F2 HB (produced by F1 HB sires x F1 HB dams, where "HB" refers to cattle sired by Hereford bulls and out of Brahman cows), F2 BH (produced by F11 BH sires x F1 BHdams), HB x BH and BH x HB, were evaluated for maternal performance at the Texas A & M Research Center near McGregor. Differences between breed combinations were analyzed for calf crop born (CCB), calf crop weaned (CCW), calf survival (CS), birthweight (BW), weaning weight (WW), and cow weight at palpation (PW). The adjusted means for F2 HB, F2 BH, HB x BH, and BH x HB were 0.84 " 0.06, 0.57 " 0.07, 0.82 " 0.06, and 0.62 " 0.08, respectively, for CCW. F2 HB cows had a 0.27 " 0.09 higherpercent calf crop weaned than F2 BH cows (P

Download or read book Evaluation of Brahmans and Tropically Adapted Crossbreds and Composites for Economically Important Beef Cattle Traits written by Karen Maree Schutt and published by . This book was released on 2007 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: abstract.

Download or read book Evaluation of the Brahman Beefmaster Brangus and Santa Gertrudis Breeds for Reproductive Efficiency Maternal Characteristics Preweaning and Postweaning Growth Traits and Carcass Characteristics written by Stanley Frank Kelley and published by . This book was released on 1994 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book International Brahman Review written by and published by . This book was released on 1957 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Feedlot Performance and Carcass Traits of Angus Brahman Charolais and Reciprocal F1 Crosses of the Three Breeds written by and published by . This book was released on 1980 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Performance of High Grade Brahman Cattle written by Samuel Thomas Fessey and published by . This book was released on 1980 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Examination of liveweight production, reproductive rates, growth rates and herd mortalities fo Brahman cattle.

Download or read book Heterosis and Productivity Estimates for Preweaning Traits in Brahman Crossbred Beef Cattle written by Marc Stephen Taylor and published by . This book was released on 1978 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract.

Download or read book Evaluation of F1 Cows Sired by Brahman Boran and Tuli for Reproductive and Maternal Performance and Cow Longevity written by Samantha F. Cunningham and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Birth (BW) (n = 1,107) and weaning weight (WW) (n = 1,024), pregnancy rate(PR) (n = 1,255), calf crop born (CCB) (n = 1,232), calf crop weaned (CCW) (n =1,225), and cow's weight at palpation (CW) (n = 1,403) were evaluated from 1994 to 2004 in 143 F1 females who were sired by Brahman (B), Boran (Bo), and Tuli (T) bulls and who were out of Angus and Hereford cows. In 2004, mouth scores (MS) (n = 71)were assigned to the remaining females. PR, CCB, CCW, CW, and BCS were evaluated using a model that consisted of sire of dam breed, dam of dam breed, and calf's birth year/age of dam as fixed effects. Sire of dam within sire breed of dam and dam within sire of dam within sire breed of dam were used as random effects. BW and WW were analyzed using the same model including calf's gender. Two-way interactions were tested for significance. Year/age was significant for all traits (P 0.05). Adjusted means for BW for calves out of cows by B, Bo, and T sires were 35.66, 35.38, and 35.59 kg respectively, and were not different (P 0.05). Adjusted means for WW for calves out of cows by B, Bo, and T sires were 233.4, 220.1, and 208.2 kg respectively, and were significantly different. For both BW and WW, male calves were heavier (P 0.05) than females. Adjusted means for PR for females sired by B, Bo, and T bulls were 0.914, 0.945, and 0.920, and were not different (P 0.05). Adjusted means for CCB for females sired by B, Bo, and T bulls were 0.890, 0.943, and 0.910 respectfully, and Bo was higher (P

Download or read book Evaluation of Live and Ultrasound Measures as Estimators of Performance Traits in Young Beef Bulls written by Robert L. Brooks and published by . This book was released on 2002 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Comparative Performance of Calves Sired by Exotic Brahman and Brahman derivative Bulls written by and published by . This book was released on 1981 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: