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Book Evaluation of Birth  Weaning and Carcass Traits of F1 Calves Sired by Brahman Bulls

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:

Book Evaluation of F1 Cows Sired by Brahman  Boran  and Tuli Bulls for Reproductive and Maternal Performance Traits and Cow Longevity

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

Book Comparison of F1 Cows Sired by Brahman  Boran and Tuli Bulls for Reproductive  Maternal  and Cow Longevity Traits

Download or read book Comparison of F1 Cows Sired by Brahman Boran and Tuli Bulls for Reproductive Maternal and Cow Longevity Traits written by Assalia Hassimi Maiga and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Birth weight (BW) (n =1277) and weaning weight (WW) (n = 1090) of calves, pregnancy rate (PR) (n = 1386), calf crop born (CCB) (n = 1386), calf crop weaned (CCW) (n = 1294), cow's weight at palpation (CW) (n = 1474) and cow body condition score (BCS) (n = 1473) were evaluated from 1994 to 2006 in 143 F1 cows sired by Brahman (B), Boran (Bo) and Tuli (T) bulls and born to Angus and Hereford cows. Mouth scores (MS) (n = 139) were assigned to the remaining cows in 2004 and 2005. Fixed effects included sire breed of cow, dam breed of cow, and calf's birth year/age of cow; random effects included cow and sire of cow. BW and WW were evaluated using the same model and adding gender for both and age for WW. All two-way interactions were tested for significance. Calf's birth year/age of dam was significant for all traits (P

Book Evaluation of F1 Cows Sired by Brahman  Boran  and Tuli for Reproductive and Maternal Performance and Cow Longevity

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

Book Nutrition Abstracts and Reviews

Download or read book Nutrition Abstracts and Reviews written by and published by . This book was released on 1996 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Dissertation Abstracts International

Download or read book Dissertation Abstracts International written by and published by . This book was released on 1995 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Cumulated Index Medicus

Download or read book Cumulated Index Medicus written by and published by . This book was released on 1996 with total page 1340 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book American Doctoral Dissertations

Download or read book American Doctoral Dissertations written by and published by . This book was released on 1994 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Evaluation of Carcass Traits of F One Calves Sired by Bos Indicus Bulls

Download or read book Evaluation of Carcass Traits of F One Calves Sired by Bos Indicus Bulls written by Cody Allen Fry and published by . This book was released on 1999 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Evaluation of Performance Traits in Brahman Cattle

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.

Book Bibliography of Agriculture

Download or read book Bibliography of Agriculture written by and published by . This book was released on 1998 with total page 1960 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book The Effect of Early Weaning Beef Calves on Feedlot Performance  Carcass Characteristics  Cow Performance  and Economic Return

Download or read book The Effect of Early Weaning Beef Calves on Feedlot Performance Carcass Characteristics Cow Performance and Economic Return written by Jennifer Marie Barker and published by . This book was released on 1999 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Bibliography of Agriculture with Subject Index

Download or read book Bibliography of Agriculture with Subject Index written by and published by . This book was released on 1994 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Effects of Breed Type and Growing Program on Performance and Carcass Characteristics of Early Weaned Calves

Download or read book Effects of Breed Type and Growing Program on Performance and Carcass Characteristics of Early Weaned Calves written by Jake Andrew Franke and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A 2-yr study using Mashona- (M, yr 1 and 2) and Tuli-sired (T, yr 2) cows produced from a three-breed diallele cow base comprised of Brahman (BB), Romosinuano (RR), and Angus (AA) was conducted to determine effects of breed type and growing strategies on growth performance and carcass characteristics in early-weaned calves. Steers and heifers used were between 90 and 200 d old at arrival. Cattle were randomly split into one of two nutritional treatment groups with sex, breed type, and age stratified across treatments. Calves were either fed a roughage diet (P) or placed immediately on a concentrate grower diet (F) for approximately x d, then finished together in the feedlot. In both years, F calves gained more (P